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This article mainly explains "php how to convert an array into a comma string". The explanation in the article is simple and clear and easy to learn and understand. please follow the editor's train of thought to study and learn "php how to convert an array into a comma string".

In php, you can use the implode () function to convert an array to a string with a comma, using the syntax "implode (", ", $arr)"; this function can convert an array into a string, and when the first parameter of the function is set to ",", you can use a comma as a connector to concatenate each element of the array together to form a string.

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

In php, you can use the implode () function to convert an array to a comma string.

The implode () function converts an one-dimensional array to a string in the following syntax format:

Implode ([$glue,] $array)

Where $glue is used to set a string to indicate that each element of the array is concatenated using $glue. By default, $glue is an empty string, and $array is the array to be converted.

You can concatenate each element of the array together to form a string using a comma as a connector simply by setting the $glue parameter to ",".

Example:

Note: the $glue parameter of the implode () function is optional and can be omitted; then the default connector is "" (empty string)

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