PHP合并两个数组,并保留原始键
要合并两个数组,并在PHP中保留原始键,代码如下-
示例
<?php $arr1 = array( "p"=>"150", "q"=>"100", "r"=>"120", "s"=>"110"); $arr2 = array("t"=>"115", "u"=>"103", "v"=>"105", "w"=>"125" ); var_dump ($arr1 + $arr2); ?>
输出结果
array(8) { ["p"]=> string(3) "150" ["q"]=> string(3) "100" ["r"]=> string(3) "120" ["s"]=> string(3) "110" ["t"]=> string(3) "115" ["u"]=> string(3) "103" ["v"]=> string(3) "105" ["w"]=> string(3) "125" }
示例
现在让我们来看另一个示例-
<?php $arr1 = array(); $arr2 = array("a" => "Jacob"); var_dump ($arr1 + $arr2); ?>
输出结果
array(1) { ["a"]=> string(5) "Jacob" }