The + operator appends elements of remaining keys from the right handed array to the left handed, whereas duplicated keys are NOT overwritten. 今天 再次看 php manual的时候，才知道 复制代码 代码如下: <?php $a = array(“a” => “apple”, “b” => “banana”); $b = array(“a” => “pear”, “b” => “strawberry”, “c” => “cherry”); $c =
