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run code in 200+ php & hhvm versions
Bugs & Features
<?php $s = fopen('php://memory', 'w'); var_dump($s, is_resource($s), gettype($s)); fclose($s); var_dump($s, is_resource($s), gettype($s));
Output for 7.2.6
resource(5) of type (stream) bool(true) string(8) "resource" resource(5) of type (Unknown) bool(false) string(17) "resource (closed)"
Output for 5.2.3 - 7.1.20
resource(5) of type (stream) bool(true) string(8) "resource" resource(5) of type (Unknown) bool(false) string(12) "unknown type"
Output for 5.1.4 - 5.2.2
resource(2) of type (stream) bool(true) string(8) "resource" resource(2) of type (Unknown) bool(false) string(12) "unknown type"
Output for 4.3.2, 5.0.0 - 5.1.3
Warning: fopen(php://memory): failed to open stream: Inappropriate ioctl for device in /in/qnk41 on line 3 bool(false) bool(false) string(7) "boolean" Warning: fclose(): supplied argument is not a valid stream resource in /in/qnk41 on line 5 bool(false) bool(false) string(7) "boolean"
Output for 4.3.3 - 4.4.9
Warning: fopen(php://memory): failed to open stream: Success in /in/qnk41 on line 3 bool(false) bool(false) string(7) "boolean" Warning: fclose(): supplied argument is not a valid stream resource in /in/qnk41 on line 5 bool(false) bool(false) string(7) "boolean"
Output for 4.3.0 - 4.3.1
Warning: fopen(php://memory) [http://www.php.net/function.fopen]: failed to create stream: Inappropriate ioctl for device in /in/qnk41 on line 3 bool(false) bool(false) string(7) "boolean" Warning: fclose(): supplied argument is not a valid stream resource in /in/qnk41 on line 5 bool(false) bool(false) string(7) "boolean"