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php数组函数序列之array_combine() - 数组合并函数使用说明_php技巧

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Release: 2016-05-17 09:14:57
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array_combine() 定义和用法
array_combine() 函数通过合并两个数组来创建一个新数组,其中的一个数组是键名,另一个数组的值为键值。

如果其中一个数组为空,或者两个数组的元素个数不同,则该函数返回 false。

语法
array_combine(array1,array2)
参数 描述
array1 必需。规定键名。
array2 必需。规定值。

提示和注释
注释:两个参数必须有相同数目的元素。

例子
复制代码 代码如下:

$a1=array("a","b","c","d");
$a2=array("Cat","Dog","Horse","Cow");
print_r(array_combine($a1,$a2));
?>

输出:

Array ( [a] => Cat [b] => Dog [c] => Horse [d] => Cow )
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