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The array_merge_recursive() function merges one ore more arrays into one array. The difference between this function ant the array_merge() function is when two or more array elements have the same key. Instead of override keys, the array_merge_recursivse() function makes the value as an array. (See example 1)
array_merge_recursive()函数将一个或多个数组合并为一个数组。当两个或多个元素包含相同的键时,array_merge_recursive()和array_merge()函数将存在不同。the array_merge_recursivse()函数以一个数组的形式返回值,而不忽略键。
array_merge_recursive(array1,array2,array3...) |
Parameter 参数 | Description 描述 |
---|---|
array1 | Required. Specifies an array 必要函数。指定一个数组 |
array2 | Optional. Specifies an array. 可选函数。指定一个数组 |
array3 | Optional. Specifies an array 可选函数。指定一个数组 |
Note: If you assign only one array to the array_merge_recursive() function, it will beahave exactly the same as the array_merge() function.
注意:如果你只在array_merge_recursive()函数中指定一个数组,它的功能和array_merge()函数完全一致。
<?php $a1=array("a"=>"Horse","b"=>"Dog"); $a2=array("c"=>"Cow","b"=>"Cat"); print_r(array_merge_recursive($a1,$a2)); ?> |
The output of the code above will be:
上述代码将输出下面的结果:
Array ( [a] => Horse [b] => Array ( [0] => Dog [1] => Cat ) [c] => Cow ) |