How to determine whether it is an array element in php

php method to determine whether it is an array element: 1. Create a new php file; 2. Create an array with elements and store it in the $arr variable; 3. Use the "is_array()" function to determine the variable of the previous step Whether it is an array, and save the result in the $res variable; 4. Use the if statement to judge the result of the previous step, and output the result through echo.

The operating environment of this tutorial: windows10 system, PHP version 8.1, DELL G3 computer

How does php determine whether it is an array element? ?

php determines whether a value is an array type

Create a new PHP file named test.php to explain how PHP determines whether a value is an array type.

In the test.php file, use the header() method to set the encoding format of the page to utf-8 to avoid garbled characters when the page outputs Chinese.

In the test.php file, create an array of two elements and store it in the $arr variable.

In the test.php file, use the is_array() function to determine whether the variable in the previous step is an array, and the result is saved in the $res variable. If the variable is an array, the result is true, otherwise, the result is false.

In the test.php file, judge the result of the previous step through the if statement, and output the result through echo.

Open the test.php file in the browser to view the results.

Recommended study: "PHP Video Tutorial"

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