PHP ʖ²ἯTH º󍋼/A array_diff ˵÷ =ד 1. array_diff() =ד $array1 = array ("a" = "green", "red", "blue", "red"); $array2 = array ("b" = "green", "yellow", "red"); $result = array_diff ($array1, $array2); ¾¯¸漯B ±¾º¯ʽԚ PHP 4.0.4 ֐ʇ»µµģ¡ º󍋼/A ưµ㼯A array_diff_assoc ɏһ¼¶ array_fill