3v4l.org

run code in 300+ PHP versions simultaneously
<?php function f($code){ return 'pa' === strtolower(substr($code, 0, 2)); } var_dump([ 'pa05' => f('pa05'), 'pa08' => f('pa08'), 'c10' => f('c10'), 'test' => f('test'), 'ts' => time(), ]);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.11, 7.2.13 - 7.2.25, 7.3.0 - 7.3.12, 7.4.0
array(5) { ["pa05"]=> bool(true) ["pa08"]=> bool(true) ["c10"]=> bool(false) ["test"]=> bool(false) ["ts"]=> int(1408546162) }
Output for 7.2.12
array(5) { ["pa05"]=> bool(true) ["pa08"]=> bool(true) ["c10"]=> bool(false) ["test"]=> bool(false) ["ts"]=> int(1408546163) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[', expecting ')' in /in/QWGJT on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[', expecting ')' in /in/QWGJT on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/QWGJT on line 7
Process exited with code 255.
preferences:
262.06 ms | 405 KiB | 323 Q