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run code in 300+ PHP versions simultaneously
<?php function byRef(&$ref) {} ini_set('memory_limit', '500k'); $array = array_fill(0, 2000, '*'); $ref = $array; byRef($array);
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Failed to set memory limit to 512000 bytes (Current memory usage is 2097152 bytes) in /in/f5l1D on line 5
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Allowed memory size of 512000 bytes exhausted (tried to allocate 72 bytes) in /in/f5l1D on line 7
Process exited with code 255.
Output for 5.2.3 - 5.2.17, 5.3.0 - 5.3.29
Fatal error: Allowed memory size of 512000 bytes exhausted (tried to allocate 71 bytes) in /in/f5l1D on line 7
Process exited with code 255.
Output for 5.2.1 - 5.2.2
<br /> <b>Fatal error</b>: Allowed memory size of 512000 bytes exhausted (tried to allocate 71 bytes) in <b>/in/f5l1D</b> on line <b>7</b><br />
Process exited with code 255.

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291.67 ms | 401 KiB | 459 Q