3v4l.org

run code in 300+ PHP versions simultaneously
<?php $stream = fopen('php://output', 'a'); var_dump($stream); var_dump(is_resource($stream)); fclose($stream); var_dump(is_resource($stream)); var_dump($stream); fclose($stream);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
resource(5) of type (stream) bool(true) bool(false) resource(5) of type (Unknown) Fatal error: Uncaught TypeError: fclose(): supplied resource is not a valid stream resource in /in/DNupZ:9 Stack trace: #0 /in/DNupZ(9): fclose(Resource id #5) #1 {main} thrown in /in/DNupZ on line 9
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
resource(5) of type (stream) bool(true) bool(false) resource(5) of type (Unknown) Warning: fclose(): supplied resource is not a valid stream resource in /in/DNupZ on line 9
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
resource(5) of type (stream) bool(true) bool(false) resource(5) of type (Unknown) Warning: fclose(): 5 is not a valid stream resource in /in/DNupZ on line 9
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
resource(2) of type (stream) bool(true) bool(false) resource(2) of type (Unknown) Warning: fclose(): 2 is not a valid stream resource in /in/DNupZ on line 9
Output for 4.3.6 - 4.3.11, 4.4.0 - 4.4.9
resource(1) of type (stream) bool(true) bool(false) resource(1) of type (Unknown) Warning: fclose(): 1 is not a valid stream resource in /in/DNupZ on line 9
Output for 4.3.0 - 4.3.5
resource(1) of type (stream) bool(true) bool(true) resource(1) of type (Unknown) Warning: fclose(): 1 is not a valid stream resource in /in/DNupZ on line 9

preferences:
235.84 ms | 401 KiB | 373 Q