3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; $foo = "bar"; {$foo.$i} = "hello";
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.28
Parse error: syntax error, unexpected '}' in /in/aOOEk on line 6
Process exited with code 255.
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201.85 ms | 1395 KiB | 65 Q