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In this article Xiaobian for you to introduce in detail "php how to convert the key in the array into a string", the content is detailed, the steps are clear, and the details are handled properly. I hope that this "php how to convert the key in the array into a string" article can help you solve your doubts.

Conversion method: 1, use the array_keys () function to get all the key in the array, and return the array key names in the form of an array; 2, use the implode () function to convert the key name (key) array into a string, syntax "implode (array_keys ($arr)".

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

Php converts the key (key name) in the array to a string

In php, to convert all the key names in an array to a string, you need two steps:

First use the array_keys () function to get all the key names in the array and return the resulting array key names as an array.

Then use the implode () function to convert the array of key names to a string

Implementation code:

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