TYPO3 Core

Bug #70005

Updated by Markus Klein over 8 years ago

Setting up a clean TYPO3 7.4 installation on a MAMP 3.4 environment with php 5.6.10 (no caches like opcode, APCu etc) leads to a failure in rendering the tree section: no icon to generate page entries are shown, neither are page shown that have been copied over from another TYPO3 instance via SQL. 

 The log file contains these error messages: 
 <pre> 
 

 Core: Error handler (BE): PHP Warning: Cannot modify header information - headers already sent in /[PATH]/typo3_src-7.4.0/typo3/sysext/core/Classes/Core/Bootstrap.php line 1113 	

 Core: Error handler (BE): PHP Warning: Cannot modify header information - headers already sent in /[PATH]/typo3_src-7.4.0/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php line 423 	

 Core: Error handler (BE): PHP Warning: Cannot modify header information - headers already sent in /[PATH]/typo3_src-7.4.0/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php line 422 	

 Core: Error handler (BE): PHP Warning: Cannot modify header information - headers already sent in /[PATH]/typo3_src-7.4.0/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php line 409 	

 Core: Error handler (BE): PHP Warning: Cannot modify header information - headers already sent in /[PATH]/typo3_src-7.4.0/typo3/sysext/core/Classes/Authentication/AbstractUserAuthentication.php line 408 
 </pre> 

 


 which reference these 2 functions: 

 - Bootstrap.php 
 <pre> ``` 
 /** 
  * Send HTTP headers if configured 
  * 
  * @return Bootstrap 
  * @internal This is not a public API method, do not use in own extensions 
  */ 
 public function sendHttpHeaders() { 
     if (!empty($GLOBALS['TYPO3_CONF_VARS']['BE']['HTTP']['Response']['Headers']) && is_array($GLOBALS['TYPO3_CONF_VARS']['BE']['HTTP']['Response']['Headers'])) { 
         foreach ($GLOBALS['TYPO3_CONF_VARS']['BE']['HTTP']['Response']['Headers'] as $header) { 
             header($header); 
         } 
     } 
     return $this; 
 } 
 </pre> ``` 

 - AbstractUserAuthentication 

 <pre> ``` 

 if ($this->sendNoCacheHeaders && !(TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI)) { 
     header('Expires: 0'); 
     header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); 
     $cacheControlHeader = 'no-cache, must-revalidate'; 
     $pragmaHeader = 'no-cache'; 
     // Prevent error message in IE when using a https connection 
     // see http://forge.typo3.org/issues/24125 
     $clientInfo = GeneralUtility::clientInfo(); 
     if ($clientInfo['BROWSER'] === 'msie' && GeneralUtility::getIndpEnv('TYPO3_SSL')) { 
         // Some IEs can not handle no-cache 
         // see http://support.microsoft.com/kb/323308/en-us 
         $cacheControlHeader = 'must-revalidate'; 
         // IE needs "Pragma: private" if SSL connection 
         $pragmaHeader = 'private'; 
     } 
     header('Cache-Control: ' . $cacheControlHeader); 
     header('Pragma: ' . $pragmaHeader); 
 } 
 </pre> 

 


 When switching back to php 5.5.26, everything works fine.

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