<?php $a = ['id', 'name', 'age', 'gender']; $b = ['id', 'age', 'name', 'gender']; $expected = array_diff_assoc($a, $b); $actual = array_diff_assoc($b, $a); echo 'Expected = ', implode(', ', $expected), PHP_EOL; echo 'Actual = ', implode(', ', $actual), PHP_EOL;
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