<?php $array = array( array( 'name' => 'Foo', 'children' => array( 'B', 'A', ), ), array( 'name' => 'Bar', 'children' => array( 'Z', 'X', 'Y', ), ), ); usort($array, function (&$x, &$y) { sort($x['children']); sort($y['children']); $x[] = 'Test'; return strcasecmp($x['name'], $y['name']); }); var_dump($array);
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