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<?php $foo = []; if ($foo['a']['b'] === 'c') { echo 'foo'; } else { echo 'bar'; }
Output for git.master, git.master_jit
Warning: Undefined array key "a" in /in/VdH8D on line 5 Warning: Trying to access array offset on value of type null in /in/VdH8D on line 5 bar
Output for rfc.property-hooks
Warning: Undefined array key "a" in /in/VdH8D on line 5 Warning: Trying to access array offset on null in /in/VdH8D on line 5 bar

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