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<?php $stream = fopen('php://output', 'a'); fclose($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 (Unknown) Fatal error: Uncaught TypeError: fclose(): supplied resource is not a valid stream resource in /in/tZo9j:6 Stack trace: #0 /in/tZo9j(6): fclose(Resource id #5) #1 {main} thrown in /in/tZo9j on line 6
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 (Unknown) Warning: fclose(): supplied resource is not a valid stream resource in /in/tZo9j on line 6
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
resource(5) of type (Unknown) Warning: fclose(): 5 is not a valid stream resource in /in/tZo9j on line 6
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.2
resource(2) of type (Unknown) Warning: fclose(): 2 is not a valid stream resource in /in/tZo9j on line 6
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9
resource(1) of type (Unknown) Warning: fclose(): 1 is not a valid stream resource in /in/tZo9j on line 6

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183.25 ms | 402 KiB | 330 Q