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run code in 300+ PHP versions simultaneously
<?php $a = array(1, 2, 3, 4); print_r($a); foreach($a as &$b) { print_r(&$b); } print_r($a); foreach($a as $b) { } print_r($a);
Output for 7.0.0 - 7.0.2
Parse error: syntax error, unexpected '&' in /in/LBetr on line 5
Process exited with code 255.
Output for 5.5.24 - 5.5.31, 5.6.8 - 5.6.17
Fatal error: Call-time pass-by-reference has been removed in /in/LBetr on line 5
Process exited with code 255.
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170.42 ms | 1399 KiB | 28 Q