Associative Array in PHP | How to Create an Associative Array in PHP?
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PHP array_keys() Function
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![How to extract child key value from an array [PHP]? - Stack Overflow](https://i.stack.imgur.com/viYnl.png "How to extract child key value from an array [PHP]? - Stack Overflow")
How to extract child key value from an array [PHP]? - Stack Overflow
