3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s= "123 '".$foo['nonexisting']."'"; $k = "123 '$foo[nonexisting]'"; echo $s; echo $k;
Output for git.master, git.master_jit
Warning: Undefined variable $foo in /in/qVp2n on line 2 Warning: Trying to access array offset on value of type null in /in/qVp2n on line 2 Warning: Undefined variable $foo in /in/qVp2n on line 3 Warning: Trying to access array offset on value of type null in /in/qVp2n on line 3 123 ''123 ''
Output for rfc.property-hooks
Warning: Undefined variable $foo in /in/qVp2n on line 2 Warning: Trying to access array offset on null in /in/qVp2n on line 2 Warning: Undefined variable $foo in /in/qVp2n on line 3 Warning: Trying to access array offset on null in /in/qVp2n on line 3 123 ''123 ''

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