Bug #66760 [Opn]: error_log returns true when it fails when log file is read only

Edit report at https://bugs.php.net/bug.php?id=66760&edit=1 ID: 66760 Updated by: cmb@php.net Reported by: hj at BridgeportContractor dot com Summary: error_log returns true when it fails when log file is read only Status: Open Type: Bug Package: Unknown/Other Function Operating System: windows 7, x64 & Linux PHP Version: 5.4.25 Block user comment: N Private report: N New Comment: > Anyhow, this should be documented. <https://github.com/php/doc-en/commit/471f9f42cd9206eff6326b2cc6e159f8a0e096e2> Previous Comments: ------------------------------------------------------------------------ [2021-02-17 11:50:07] cmb@php.net Oh, indeed, that happens whenever $message_type===0. The basic problem is that php_log_err_with_severity() is a void function, and as such cannot report success/failure. Changing this would constitute an ABI break, and as such cannot be done for any stable PHP version. Anyhow, this should be documented. ------------------------------------------------------------------------ [2014-02-24 04:17:08] hj at BridgeportContractor dot com Description: ------------ If the log file is read only on either Win or Linux error_log() still returns true as a success flag, even thought the log message was never written. It should return false I think if the log is not written. ?? Is this a cgi thing? Don't think so, because my win-7 php is Apache mod-php, and the linux-php is fastcgi. ...A meta bug: an error, in the error_log :-) Thanks. Test script: --------------- <?php // I'm not sure you need all this to demonstrate the problem, but this is what // I have set that might possibly relate to this issue: error_reporting(E_ALL); ini_set('display_errors' ,'On'); ini_set('log_errors' ,'On'); ini_set('error_log' ,'/php_errors.log'); ini_set('display_startup_errors' ,'On'); ini_set('ignore_repeated_errors' ,'Off'); ini_set('ignore_repeated_source' ,'off'); ini_set('log_errors_max_len' ,1024); var_dump(error_log('test')); // When php_errors.log is read only in windows, // or 444 in Linux this returns true but // should return false. What I want is if the // log fails that I can report it elsewhere. Expected result: ---------------- false Actual result: -------------- true ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66760&edit=1