Feature #23374 » 15457_core.diff
| t3lib/core_autoload.php (working copy) | ||
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't3lib_compressor' => PATH_t3lib . 'class.t3lib_compressor.php',
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't3lib_cs' => PATH_t3lib . 'class.t3lib_cs.php',
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't3lib_db' => PATH_t3lib . 'class.t3lib_db.php',
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't3lib_db_preparedstatement' => PATH_t3lib . 'db/class.t3lib_db_PreparedStatement.php',
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't3lib_diff' => PATH_t3lib . 'class.t3lib_diff.php',
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't3lib_div' => PATH_t3lib . 'class.t3lib_div.php',
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't3lib_exception' => PATH_t3lib . 'class.t3lib_exception.php',
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| t3lib/db/class.t3lib_db_PreparedStatement.php (revision 0) | ||
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<?php
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/***************************************************************
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* Copyright notice
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*
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* (c) 2010 Xavier Perseguers <typo3@perseguers.ch>
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* All rights reserved
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*
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* This script is part of the TYPO3 project. The TYPO3 project is
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* free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* The GNU General Public License can be found at
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* http://www.gnu.org/copyleft/gpl.html.
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* A copy is found in the textfile GPL.txt and important notices to the license
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* from the author is found in LICENSE.txt distributed with these scripts.
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*
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*
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* This script is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* This copyright notice MUST APPEAR in all copies of the script!
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***************************************************************/
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/**
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* TYPO3 prepared statement for t3lib_db class.
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*
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* USE:
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* In all TYPO3 scripts when you need to create a prepared query:
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* <code>
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* $prepared = $GLOBALS['TYPO3_DB']->prepare_SELECTquery('*', 'pages', 'pid = :pid');
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* $prepared->execute(array(':uid' => 2));
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* while (($row = $prepared->fetch()) !== FALSE) {
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* // ...
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* }
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* $prepared->free();
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* </code>
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*
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* @author Xavier Perseguers <typo3@perseguers.ch>
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* @package TYPO3
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* @subpackage t3lib
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*/
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class t3lib_db_PreparedStatement {
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/**
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* Represents the SQL NULL data type.
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* @var integer
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*/
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const PARAM_NULL = 0;
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/**
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* Represents the SQL INTEGER data type.
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* @var integer
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*/
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const PARAM_INT = 1;
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/**
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* Represents the SQL CHAR, VARCHAR, or other string data type.
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* @var integer
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*/
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const PARAM_STR = 2;
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/**
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* Represents a boolean data type.
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* @var integer
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*/
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const PARAM_BOOL = 5;
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/**
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* Automatically detects underlying type
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* @var integer
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*/
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const PARAM_AUTOTYPE = 10;
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/**
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* Specifies that the fetch method shall return each row as an array indexed by
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* column name as returned in the corresponding result set. If the result set
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* contains multiple columns with the same name, t3lib_db_PreparedStatement::FETCH_ASSOC
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* returns only a single value per column name.
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* @var integer
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*/
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const FETCH_ASSOC = 2;
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/**
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* Specifies that the fetch method shall return each row as an array indexed by
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* column number as returned in the corresponding result set, starting at column 0.
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* @var integer
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*/
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const FETCH_NUM = 3;
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/**
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* Query to be executed.
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* @var string
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*/
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protected $query;
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/**
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* Components of the query to be executed.
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* @var array
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*/
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protected $queryComponents;
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/**
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* Table (used to call $GLOBALS['TYPO3_DB']->fullQuoteStr().
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* @var string
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*/
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protected $table;
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/**
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* Binding parameters.
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* @var array
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*/
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protected $parameters;
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/**
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* MySQL result pointer (of SELECT query) / DBAL object.
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* @var pointer
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*/
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protected $resource;
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/**
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* Creates a new PreparedStatement. Either $query or $queryComponents
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* should be used. Typically $query will be used by native MySQL TYPO3_DB
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* on a ready-to-be-executed query. On the other hand, DBAL will have
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* parse the query and will be able to safely know where parameters are used
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* and will use $queryComponents instead.
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*
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* @param string $query SQL query to be executed
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* @param string FROM table (used to call $GLOBALS['TYPO3_DB']->fullQuoteStr().
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* @param array $queryComponents Components of the query to be executed
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* @access protected This constructor may only be used by t3lib_DB
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*/
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public function __construct($query, $from_table, array $queryComponents = array()) {
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$this->query = $query;
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$this->queryComponents = $queryComponents;
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$this->table = $table;
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$this->parameters = array();
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$this->resource = NULL;
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}
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/**
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* Binds a PHP variable to a corresponding named or question mark placeholder in the SQL
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* statement that was use to prepare the statement. Unlike
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* {@see t3lib_db_PreparedStatement::bindValue()}, the variable is bound as a reference
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* and will only be evaluated at the time that {@see t3lib_db_PreparedStatement::execute()}
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* is called.
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*
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* @param mixed $parameter Parameter identifier. For a prepared statement using named placeholders, this will be a parameter name of the form :name. For a prepared statement using question mark placeholders, this will be the 1-indexed position of the parameter.
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* @param mixed $variable Name of the PHP variable to bind to the SQL statement parameter.
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* @param integer $data_type Explicit data type for the parameter using the t3lib_db_PreparedStatement::PARAM_* constants.
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* @return boolean Returns TRUE on success or FALSE on failure.
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* @api
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*/
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public function bindParam($parameter, &$variable, $data_type = self::PARAM_AUTOTYPE) {
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$key = is_numeric($parameter) ? intval($parameter) - 1 : $parameter;
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if (isset($this->parameters[$key])) {
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// Parameter is already bound
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return FALSE;
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}
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$this->parameters[$key] = array(
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'value' => &$variable,
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'type' => $data_type,
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);
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return TRUE;
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}
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/**
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* Binds a value to a corresponding named or question mark placeholder in the SQL
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* statement that was use to prepare the statement.
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*
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* @param mixed $parameter Parameter identifier. For a prepared statement using named placeholders, this will be a parameter name of the form :name. For a prepared statement using question mark placeholders, this will be the 1-indexed position of the parameter.
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* @param mixed $value The value to bind to the parameter.
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* @param integer $data_type Explicit data type for the parameter using the t3lib_db_PreparedStatement::PARAM_* constants.
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* @return boolean Returns TRUE on success or FALSE on failure.
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* @api
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*/
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public function bindValue($parameter, $value, $data_type = self::PARAM_AUTOTYPE) {
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$key = is_numeric($parameter) ? intval($parameter) - 1 : $parameter;
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if (isset($this->parameters[$key])) {
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// Parameter is already bound
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return FALSE;
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}
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$this->parameters[$key] = array(
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'value' => $value,
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'type' => ($data_type == self::PARAM_AUTOTYPE ? $this->guessValueType($value) : $data_type),
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);
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return TRUE;
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}
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/**
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* Execute the prepared statement. If the prepared statement included parameter
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* markers, you must either:
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* - call {@see t3lib_db_PreparedStatement::bindParam()} to bind PHP variables
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* to the parameter markers: bound variables pass their value as input
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* - or pass an array of input-only parameter values
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*
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* @param array $input_parameters An array of values with as many elements as there are bound parameters in the SQL statement being executed. All values are treated as t3lib_db_PreparedStatement::PARAM_AUTOTYPE.
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* @return boolean Returns TRUE on success or FALSE on failure.
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* @api
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*/
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public function execute(array $input_parameters = array()) {
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$query = $this->query;
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$queryComponents = $this->queryComponents;
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$parameterValues = $this->parameters;
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if (count($input_parameters) > 0) {
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$parameterValues = array();
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foreach ($input_parameters as $value) {
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$parameterValues[] = array(
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'value' => $value,
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'type' => $this->guessValueType($value),
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);
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}
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}
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$this->thawValuesInQuery($query, $queryComponents, $parameterValues);
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$this->resource = $GLOBALS['TYPO3_DB']->stmt_execute($query, $queryComponents);
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return ($this->resource ? TRUE : FALSE);
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}
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/**
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* Fetches a row from a result set associated with a t3lib_db_PreparedStatement object.
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*
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* @param integer $fetch_style Controls how the next row will be returned to the caller. This value must be one of the t3lib_db_PreparedStatement::FETCH_* constants.
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* @return array Array of rows or FALSE if there are no more rows.
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* @api
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*/
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public function fetch($fetch_style = self::FETCH_ASSOC) {
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switch ($fetch_style) {
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case self::FETCH_ASSOC:
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$row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($this->resource);
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break;
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case self::FETCH_NUM:
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$row = $GLOBALS['TYPO3_DB']->sql_fetch_row($this->resource);
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break;
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default:
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throw new InvalidArgumentException('$fetch_style must be either FETCH_ASSOC or FETCH_NUM', 1281646455);
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}
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return $row;
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}
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/**
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* Returns an array containing all of the result set rows.
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*
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* @param integer $fetch_style Controls the contents of the returned array as documented in {@see t3lib_db_PreparedStatement::fetch()}.
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* @return array Array of rows.
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* @api
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*/
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public function fetchAll($fetch_style = self::FETCH_ASSOC) {
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$rows = array();
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while (($row = $this->fetch($fetch_style)) !== FALSE) {
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$rows[] = $row;
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}
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return $rows;
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}
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/**
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* Releases the cursor.
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*
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* @return void
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* @api
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*/
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public function free() {
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$GLOBALS['TYPO3_DB']->sql_free_result($this->resource);
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}
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/**
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* Guesses the type of a given value.
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*
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* @param mixed $value
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* @return integer One of the t3lib_db_PreparedStatement::PARAM_* constants
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*/
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protected function guessValueType($value) {
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if (is_bool($value)) {
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$type = self::PARAM_BOOL;
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} elseif (is_numeric($value)) {
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$type = self::PARAM_INT;
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} elseif (strtoupper($value) === 'NULL') {
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$type = self::PARAM_NULL;
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} else {
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$type = self::PARAM_STR;
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}
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return $type;
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}
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/**
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* Thaws values for each parameter in a query.
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*
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* @param string $query
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* @param array $queryComponents
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* @param array $parameterValues
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* @return void
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*/
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protected function thawValuesInQuery(&$query, array &$queryComponents, array $parameterValues) {
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foreach ($this->parameters as $key => $typeValue) {
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if ($typeValue['type'] == self::PARAM_AUTOTYPE) {
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$typeValue['type'] = $this->guessValueType($typeValue['value']);
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}
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switch ($typeValue['type']) {
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case self::PARAM_INT:
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$value = $typeValue['value'];
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break;
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case self::PARAM_BOOL:
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$value = $typeValue['value'] ? 1 : 0;
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break;
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case self::PARAM_STR:
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$value = $GLOBALS['TYPO3_DB']->fullQuoteStr($typeValue['value'], $this->table);
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break;
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}
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if (is_numeric($key)) {
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if (isset($queryComponents['parameters'])) {
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$queryComponents['parameters']['?'][$key][0] = $value;
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} else {
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$parts = explode('?', $query, 2);
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$parts[0] .= $value;
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$query = implode('', $parts);
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}
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} else {
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if (isset($queryComponents['parameters'])) {
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$queryComponents['parameters'][$key][0] = $value;
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} else {
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$query = str_replace($key, $value, $query);
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}
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}
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}
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}
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}
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if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/db/class.t3lib_db_PreparedStatement.php']) {
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include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/db/class.t3lib_db_PreparedStatement.php']);
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}
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?>
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/**************************************
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*
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* Prepared Query Support
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*
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**************************************/
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/**
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* Creates a SELECT prepared SQL statement.
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*
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* @param string See exec_SELECTquery()
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* @param string See exec_SELECTquery()
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* @param string See exec_SELECTquery()
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* @param string See exec_SELECTquery()
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* @param string See exec_SELECTquery()
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* @param string See exec_SELECTquery()
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* @param array $input_parameters An array of values with as many elements as there are bound parameters in the SQL statement being executed. All values are treated as t3lib_db_PreparedStatement::PARAM_AUTOTYPE.
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* @return t3lib_db_PreparedStatement Prepared statement
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*/
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public function prepare_SELECTquery($select_fields, $from_table, $where_clause, $groupBy = '', $orderBy = '', $limit = '', array $input_parameters = array()) {
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$query = $this->SELECTquery($select_fields, $from_table, $where_clause, $groupBy, $orderBy, $limit);
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$stmt = t3lib_div::makeInstance('t3lib_db_PreparedStatement', $query, $from_table, array());
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/* @var $stmt t3lib_db_PreparedStatement */
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// Bind values to parameters
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foreach ($input_parameters as $key => $value) {
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$stmt->bindValue($key, $value, t3lib_db_PreparedStatement::PARAM_AUTOTYPE);
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}
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// Return prepared statement
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return $stmt;
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}
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/**
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* Creates a SELECT prepared SQL statement based on input query parts array
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*
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* @param array Query parts array
|
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* @param array $input_parameters An array of values with as many elements as there are bound parameters in the SQL statement being executed. All values are treated as t3lib_db_PreparedStatement::PARAM_AUTOTYPE.
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* @return t3lib_db_PreparedStatement Prepared statement
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*/
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public function prepare_SELECTqueryArray(array $queryParts, array $input_parameters = array()) {
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return $this->prepare_SELECTquery(
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$queryParts['SELECT'],
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$queryParts['FROM'],
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$queryParts['WHERE'],
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$queryParts['GROUPBY'],
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$queryParts['ORDERBY'],
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$queryParts['LIMIT'],
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$input_parameters
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);
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}
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/**
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||
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* Executes a prepared query.
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||
|
*
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||
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* @param string $query The query to execute
|
||
|
* @param array $queryComponents The components of the query to execute
|
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* @return pointer MySQL result pointer / DBAL object
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* @access protected This method may only be called by t3lib_db_PreparedStatement
|
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*/
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public function stmt_execute($query, array $queryComponents) {
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$res = mysql_query($query, $this->link);
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if ($this->debugOutput) {
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$this->debug('stmt_execute', $query);
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}
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||
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return $res;
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||
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}
|
||
|
/**************************************
|
||
|
*
|
||
|
* Various helper functions
|
||
| t3lib/class.t3lib_sqlparser.php (working copy) | ||
|---|---|---|
|
* Parsing SELECT query
|
||
|
*
|
||
|
* @param string SQL string with SELECT query to parse
|
||
|
* @param array Array holding references to either named (:name) or question mark (?) parameters found
|
||
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* @return mixed Returns array with components of SELECT query on success, otherwise an error message string.
|
||
|
* @see compileSELECT()
|
||
|
*/
|
||
|
protected function parseSELECT($parseString) {
|
||
|
protected function parseSELECT($parseString, &$parameterReferences = NULL) {
|
||
|
// Removing SELECT:
|
||
|
$parseString = $this->trimSQL($parseString);
|
||
| ... | ... | |
|
// Init output variable:
|
||
|
$result = array();
|
||
|
if ($parameterReferences == NULL) {
|
||
|
$result['parameters'] = array();
|
||
|
$parameterReferences = &$result['parameters'];
|
||
|
}
|
||
|
$result['type'] = 'SELECT';
|
||
|
// Looking for STRAIGHT_JOIN keyword:
|
||
| ... | ... | |
|
if ($parseString) {
|
||
|
// Get WHERE clause:
|
||
|
$result['WHERE'] = $this->parseWhereClause($parseString, '^(GROUP[[:space:]]+BY|ORDER[[:space:]]+BY|LIMIT)[[:space:]]+');
|
||
|
$result['WHERE'] = $this->parseWhereClause($parseString, '^(GROUP[[:space:]]+BY|ORDER[[:space:]]+BY|LIMIT)[[:space:]]+', $parameterReferences);
|
||
|
if ($this->parse_error) { return $this->parse_error; }
|
||
|
// If the WHERE clause parsing was stopped by GROUP BY, ORDER BY or LIMIT, then proceed with parsing:
|
||
| ... | ... | |
|
*
|
||
|
* @param string WHERE clause to parse. NOTICE: passed by reference!
|
||
|
* @param string Regular expressing to STOP parsing, eg. '^(GROUP BY|ORDER BY|LIMIT)([[:space:]]*)'
|
||
|
* @param array Array holding references to either named (:name) or question mark (?) parameters found
|
||
|
* @return mixed If successful parsing, returns an array, otherwise an error string.
|
||
|
*/
|
||
|
public function parseWhereClause(&$parseString, $stopRegex = '') {
|
||
|
public function parseWhereClause(&$parseString, $stopRegex = '', array &$parameterReferences = array()) {
|
||
|
// Prepare variables:
|
||
|
$parseString = $this->trimSQL($parseString);
|
||
| ... | ... | |
|
if (preg_match('/^EXISTS[[:space:]]*[(]/i', $parseString)) {
|
||
|
$stack[$level][$pnt[$level]]['func']['type'] = $this->nextPart($parseString, '^(EXISTS)[[:space:]]*');
|
||
|
$parseString = trim(substr($parseString, 1)); // Strip of "("
|
||
|
$stack[$level][$pnt[$level]]['func']['subquery'] = $this->parseSELECT($parseString);
|
||
|
$stack[$level][$pnt[$level]]['func']['subquery'] = $this->parseSELECT($parseString, $parameterReferences);
|
||
|
// Seek to new position in parseString after parsing of the subquery
|
||
|
$parseString = $stack[$level][$pnt[$level]]['func']['subquery']['parseString'];
|
||
|
unset($stack[$level][$pnt[$level]]['func']['subquery']['parseString']);
|
||
| ... | ... | |
|
$stack[$level][$pnt[$level]]['value'] = $values;
|
||
|
} else if (t3lib_div::inList('IN,NOT IN', $stack[$level][$pnt[$level]]['comparator']) && preg_match('/^[(][[:space:]]*SELECT[[:space:]]+/', $parseString)) {
|
||
|
$this->nextPart($parseString, '^([(])');
|
||
|
$stack[$level][$pnt[$level]]['subquery'] = $this->parseSELECT($parseString);
|
||
|
$stack[$level][$pnt[$level]]['subquery'] = $this->parseSELECT($parseString, $parameterReferences);
|
||
|
// Seek to new position in parseString after parsing of the subquery
|
||
|
$parseString = $stack[$level][$pnt[$level]]['subquery']['parseString'];
|
||
|
unset($stack[$level][$pnt[$level]]['subquery']['parseString']);
|
||
| ... | ... | |
|
$stack[$level][$pnt[$level]]['values'][1] = $this->getValue($parseString);
|
||
|
} else {
|
||
|
// Finding value for comparator:
|
||
|
$stack[$level][$pnt[$level]]['value'] = $this->getValue($parseString, $stack[$level][$pnt[$level]]['comparator']);
|
||
|
$stack[$level][$pnt[$level]]['value'] = &$this->getValueOrParameter($parseString, $stack[$level][$pnt[$level]]['comparator'], '', $parameterReferences);
|
||
|
if ($this->parse_error) {
|
||
|
return $this->parse_error;
|
||
|
}
|
||
| ... | ... | |
|
}
|
||
|
/**
|
||
|
* Finds value or either named (:name) or question mark (?) parameter markers at the beginning
|
||
|
* of $parseString, returns result and strips it of parseString.
|
||
|
*
|
||
|
* @param string $parseString The parseString
|
||
|
* @param string $comparator The comparator used before.
|
||
|
* @param string $mode The mode, e.g., "INDEX"
|
||
|
* @param mixed The value (string/integer) or parameter (:name/?). Otherwise an array with error message in first key (0)
|
||
|
*/
|
||
|
protected function &getValueOrParameter(&$parseString, $comparator = '', $mode = '', array &$parameterReferences = array()) {
|
||
|
$parameter = $this->nextPart($parseString, '^(\\:[[:alnum:]_]+|\\?)');
|
||
|
if ($parameter === '?') {
|
||
|
if (!isset($parameterReferences['?'])) {
|
||
|
$parameterReferences['?'] = array();
|
||
|
}
|
||
|
$value = array('?');
|
||
|
$parameterReferences['?'][] = &$value;
|
||
|
} elseif ($parameter !== '') { // named parameter
|
||
|
if (isset($parameterReferences[$parameter])) {
|
||
|
// Use the same reference as last time we encountered this parameter
|
||
|
$value = &$parameterReferences[$parameter];
|
||
|
} else {
|
||
|
$value = array($parameter);
|
||
|
$parameterReferences[$parameter] = &$value;
|
||
|
}
|
||
|
} else {
|
||
|
$value = $this->getValue($parseString, $comparator, $mode);
|
||
|
}
|
||
|
return $value;
|
||
|
}
|
||
|
/**
|
||
|
* Finds value in beginning of $parseString, returns result and strips it of parseString
|
||
|
*
|
||
|
* @param string The parseString, eg. "(0,1,2,3) ..." or "('asdf','qwer') ..." or "1234 ..." or "'My string value here' ..."
|
||