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run code in 300+ PHP versions simultaneously
<?php echo "hallo word "; $x = 0; if ($x == 0){ $x = 10; echo "x".$x; for($y=1;$y<$x;$y++){ echo "y".$y."\n"; } } ?>
Output for git.master, git.master_jit, rfc.property-hooks
hallo word x10y1 y2 y3 y4 y5 y6 y7 y8 y9

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