Php 从arrray中查找特定密钥?

Php 从arrray中查找特定密钥?,php,mysql,Php,Mysql,我有一个这样的数组 [multiple_name] => Array ( [0] => Change the business unit\'s root business unit [1] => Change the business unit\'s parent business unit [2] => Copy the business unit to the new position in the organi

我有一个这样的数组

[multiple_name] => Array
    (
        [0] => Change the business unit\'s root business unit
        [1] => Change the business unit\'s parent business unit
        [2] => Copy the business unit to the new position in the organizational hierarchy.
        [3] => Disable the business unit, change the business unit s organization team and then activate the business unit
    )

[multiple_correct] => Array
    (
        [1] => yes
    )
现在我只想打印这个数组中的键/索引值,如“0,1,2,3”和下一个数组中的“1”


请帮我渡过难关。。提前谢谢

使用
foreach
并将键绑定到变量:

foreach($someArray as $key => $value) {
  echo $key;
}
其中(根据您的问题)我假设
multiple\u name
multiple\u correct
不是嵌套数组,如果它们是嵌套数组,尽管您需要
foreach
两次:

foreach($containerArray as $innerArray) {
  foreach($innerArray as $key => $value) {
    echo $key;
  }
}

是的,它们是嵌套数组,我只想打印上面这些数组的键,这样我就可以存储它们,然后比较它们的代码。