<?php $aa = array("1 2 3 4 5", "6 7 8 9 10", "11 12 13 14 15", "16 17 18 19 20", "21 22 23 24 25"); $bb = array("1 2", "6 7 8", "11 12 13 14", "16 17 18 19 20"); $exclude = []; foreach($bb as $b){ $exclude = array_merge($exclude, preg_grep("/^". preg_quote($b) . "/", $aa)); } $final = array_diff($aa, $exclude); print_r($final);
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