3v4l.org

run code in 300+ PHP versions simultaneously
<?php for($i=1;$i<=10;$i++) { for($l=0;$l<=$i;$l++) { echo $i; echo"\l"; } }
Output for git.master, git.master_jit, rfc.property-hooks
1\l1\l2\l2\l2\l3\l3\l3\l3\l4\l4\l4\l4\l4\l5\l5\l5\l5\l5\l5\l6\l6\l6\l6\l6\l6\l6\l7\l7\l7\l7\l7\l7\l7\l7\l8\l8\l8\l8\l8\l8\l8\l8\l8\l9\l9\l9\l9\l9\l9\l9\l9\l9\l9\l10\l10\l10\l10\l10\l10\l10\l10\l10\l10\l10\l

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