Bug #74563 [Com]: curl_exec() throws internal error in curl_error()

Edit report at https://bugs.php.net/bug.php?id=74563&edit=1 ID: 74563 Comment by: jeremys at ha dot com Reported by: jeremys at ha dot com Summary: curl_exec() throws internal error in curl_error() Status: Open Type: Bug Package: cURL related Operating System: RHEL 7.3 PHP Version: 7.1.4 Block user comment: N Private report: N New Comment: No Suhosin or other security modules are running/enabled. Do you need a particular part of the php.ini? I disabled opcache for the script by adding the following line to the top of the script: ini_set( 'opcache.enable', 0 ); And the error still occasionally happens. Previous Comments: ------------------------------------------------------------------------ [2017-05-09 15:16:06] danack@php.net In fact - please can you just double check that you are seeing the error from the code you have listed here. I strongly suspect you have OPCache running and the error you are seeing is from code that has been cached in memory, rather than running the latest version of that file. ------------------------------------------------------------------------ [2017-05-09 15:04:57] danack@php.net Do you have Suhosin or any other security module enabled? ------------------------------------------------------------------------ [2017-05-09 13:58:27] jeremys at ha dot com Description: ------------ Executing curl_exec() with a host/URL that refuses the connection makes curl_exec() sometimes raise an E_WARNING because curl_exec() calls curl_error() internally. The error is as follows: curl_error() expects parameter 1 to be resource, boolean given As you can see in the sample script, there is no explicit call to curl_error(), yet the above error is seen. I've only been able to reproduce via Apache, not via cli. Apache/2.4.6 (Red Hat Enterprise Linux) PHP 7.1.3 (part of Zend Server 9.1) - I assume 7.1.4 as well since there are no relevant changes to the curl interface in the PHP source code libcurl 7.29.0 Test script: --------------- <?php ini_set( 'display_errors', 1 ); ini_set( 'error_reporting', E_ALL ); set_error_handler( function ( ...$error ) { array_pop( $error ); print_r( $error ); die(); }); $resource = curl_init(); curl_setopt( $resource, CURLOPT_URL, 'http://127.0.0.1:1' ); curl_setopt( $resource, CURLOPT_RETURNTRANSFER, 1 ); curl_exec( $resource ); echo 'Script finished.'; Expected result: ---------------- Script finished. Actual result: -------------- Array ( [0] => 2 [1] => curl_error() expects parameter 1 to be resource, boolean given [2] => /usr/local/apache/htdocs2/curl-error-test.php [3] => 16 ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74563&edit=1