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run code in 300+ PHP versions simultaneously
<?php $a = 0x01; $b = 0x02; printf ("%x", ($a &lt;&lt; $b.$b));
Output for 5.3.0 - 5.3.24, 5.4.0 - 5.4.14
Parse error: syntax error, unexpected ';' in /in/Y2tqu on line 5
Process exited with code 255.
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194.81 ms | 1399 KiB | 47 Q