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run code in 150+ php & hhvm versions
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<?php $counter=0; for($i=0; $i<10; $i++){ $prova = '"class=categorianumero'.$counter"; $counter++; print($prova); } ?>
Output for 5.3.0 - 5.4.29
Parse error: syntax error, unexpected '"' in /in/Uuoe1 on line 4
Process exited with code 255.