3v4l.org

run code in 300+ PHP versions simultaneously
<?php $ans = ''; for($i=0; $i<1000;$i++) $ans+= "Hello, World!"; echo $ans
Output for 5.4.0 - 5.4.29
Parse error: syntax error, unexpected end of file, expecting ',' or ';' in /in/vKKOF on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected $end, expecting ',' or ';' in /in/vKKOF on line 5
Process exited with code 255.
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189.19 ms | 1395 KiB | 66 Q