Bug #75868 [Opn->Nab]: is_resource() gettype() get_resources() inconsistent result on closed resource

Edit report at https://bugs.php.net/bug.php?id=75868&edit=1 ID: 75868 Updated by: cmb@php.net Reported by: bobonov at gmail dot com Summary: is_resource() gettype() get_resources() inconsistent result on closed resource -Status: Open +Status: Not a bug Type: Bug Package: Variables related Operating System: Ubuntu 17.10 PHP Version: 7.2.1 -Assigned To: +Assigned To: cmb Block user comment: N Private report: N New Comment: > Checking the closed resource with: > is_resource() return false. Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php This is documented[1] behavior: | is_resource() is not a strict type-checking method: it will | return FALSE if var is a resource variable that has been closed. [1] <http://www.php.net/manual/en/function.is-resource.php#refsect1-function.is-resource-notes> Previous Comments: ------------------------------------------------------------------------ [2018-01-24 14:31:43] bobonov at gmail dot com Description: ------------ Checking the closed resource with: gettype() return resource (closed) get_resources() list it as resource is_resource() return false. There is an ancient Bug #42797 (php 4.3.6) that is relevant to this bug Test script: --------------- <?php $a = fopen('http://www.google.com', 'r'); echo "$a : the type is " . gettype($a)."\n"; // resource var_dump(is_resource($a)); // true print_r(get_resources()); fclose($a); echo "$a : the type is " . gettype($a)."\n"; // resource closed var_dump(is_resource($a)); // false print_r(get_resources()); Expected result: ---------------- I expect is_resource() to return true since get_resources() and gettype() see the var as resource Actual result: -------------- Resource id #6 : the type is resource bool(true) Array ( [1] => Resource id #1 [2] => Resource id #2 [3] => Resource id #3 [4] => Resource id #4 [6] => Resource id #6 ) Resource id #6 : the type is resource (closed) bool(false) Array ( [1] => Resource id #1 [2] => Resource id #2 [3] => Resource id #3 [4] => Resource id #4 [6] => Resource id #6 ) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75868&edit=1