在php中获取数组键名最简单的办法就是直接利用foreach遍历就可以直接输入key,value值了,下面我来给大家演示几个实例吧。
我php foreach()函数可以遍历数组,取出数组的键值,怎么取键名$key?或只取第一个键名?比如下面的例子
代码如下 | 复制代码 |
$keyarray = array( |
第一种方法,我可以用foreach 取出第一个键名.如下
代码如下 | 复制代码 |
foreach($keyarray as $key => $value){ |
也可以用 print_r ($a);取出所有键名第二种方法是用array_keys()函数.
代码如下 | 复制代码 |
$arrKeys = array_keys($keyarray); |
上面有方法可以达到相同的效果.

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