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<?php $x = ['1', '2']; $y = ['2', '1']; $z = ['1', '2', '4']; $n = [1, 2]; echo array_diff($x, $y) === array_diff($y, $x) ? 'y1' : 'n1'; echo array_diff($x) === array_diff($z) ? 'y2' : 'n2'; echo array_diff($z); echo array_diff($x) === array_diff($n) ? 'y3' : 'n3';
Output for git.master, git.master_jit, rfc.property-hooks
y1n2 Warning: Array to string conversion in /in/t6duF on line 10 Arrayn3

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