TYPO3 Core

/**

* Checks whether measurement strings like "100k" return the accordant

* byte representation like 102400 in this case.

*

* @test

*/

public function checkGetBytesFromSizeMeasurement() {

$this->assertEquals(

'102400',

t3lib_div::getBytesFromSizeMeasurement('100k')

);

$this->assertEquals(

'104857600',

t3lib_div::getBytesFromSizeMeasurement('100m')

);

$this->assertEquals(

'107374182400',

t3lib_div::getBytesFromSizeMeasurement('100g')

);

}

if ($maxFileSize > 0) {

$this->maxUploadFileSize = t3lib_div::getMaxUploadFileSize();

/**

* Returns the maximum upload size for a file that is allowed. Measured in KB.

* This might be handy to find out the real upload limit that is possible for this

* TYPO3 installation. The first parameter can be used to set something that overrides

* the maxFileSize, usually for the TCA values.

*

* @param integer $localLimit: the number of Kilobytes (!) that should be used as

* the initial Limit, otherwise $TYPO3_CONF_VARS['BE']['maxFileSize'] will be used

* @return integer the maximum size of uploads that are allowed (measuered in kilobytes)

*/

public static function getMaxUploadFileSize($localLimit = 0) {

// don't allow more than the global max file size at all

$t3Limit = (intval($localLimit > 0 ? $localLimit : $GLOBALS['TYPO3_CONF_VARS']['BE']['maxFileSize']));

// as TYPO3 is handling the file size in KB, multiply by 1024 to get bytes

$t3Limit = $t3Limit * 1024;

// check for PHP restrictions of the maximum size of one of the $_FILES

$phpUploadLimit = self::getBytesFromSizeMeasurement(ini_get('upload_max_filesize'));

// check for PHP restrictions of the maximum $_POST size

$phpPostLimit = self::getBytesFromSizeMeasurement(ini_get('post_max_size'));

// if the total amount of post data is smaller (!) than the upload_max_filesize directive,

// then this is the real limit in PHP

$phpUploadLimit = ($phpPostLimit < $phpUploadLimit ? $phpPostLimit : $phpUploadLimit);

// is the allowed PHP limit (upload_max_filesize) lower than the TYPO3 limit?, also: revert back to KB

return floor($phpUploadLimit < $t3Limit ? $phpUploadLimit : $t3Limit) / 1024;

}

/**

* Gets the bytes value from a measurement string like "100k".

*

* @param string $measurement: The measurement (e.g. "100k")

* @return integer The bytes value (e.g. 102400)

*/

public function getBytesFromSizeMeasurement($measurement) {

if (stripos($measurement, 'G')) {

$bytes = intval($measurement) * 1024 * 1024 * 1024;

} else if (stripos($measurement, 'M')) {

$bytes = intval($measurement) * 1024 * 1024;

} else if (stripos($measurement, 'K')) {

$bytes = intval($measurement) * 1024;

} else {

$bytes = intval($measurement);

}

return $bytes;

}