3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strHaystack='test'; $strNeedle='t'; $numPos=strpos($strHaystack,$strNeedle); if((!$numPos) && ($bob)) print "Found '$strNeedle' at position: $numPos\r\n"; else print "Not Found!\r\n"; ?>

preferences:
34.78 ms | 402 KiB | 5 Q