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This article mainly explains "the usage of is_array () in php". The content of the explanation in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn the usage of is_array () in php.

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

Php is_array () function

The PHP is_array () function is used to determine whether a variable is an array. Its syntax format is as follows:

Bool is_array (mixed $var)

Parameter description:

Var: the variable to be detected.

Return value

Returns TRUE if the detected variable is an array, FALSE otherwise.

Examples of the use of this function are as follows:

Output result:

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