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How to determine whether an array contains an element in php

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藏色散人Original
2022-12-23 10:48:174365browse

php method to determine whether an array has a certain element: 1. Create a new php file and create an array; 2. Use the "in_array" function to determine whether there is a specified element in the array "$arr"; 3. Just output the judgment result.

How to determine whether an array contains an element in php

The operating environment of this tutorial: windows10 system, PHP8.1 version, DELL G3 computer

How does php determine whether an array contains a certain indivual?

PHP checks whether the specified element exists in an array

Create a new php file, named test.php, to explain how PHP checks an array Whether the specified element exists.

How to determine whether an array contains an element in php

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

How to determine whether an array contains an element in php

In the test.php file, create an array for testing.

How to determine whether an array contains an element in php

In the test.php file, use the in_array function to determine whether there is a bb element in the array $arr. If so, return true.

How to determine whether an array contains an element in php

In the test.php file, use the if statement to determine the result of the previous step and output a prompt.

How to determine whether an array contains an element in php

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

How to determine whether an array contains an element in php

Recommended study: "PHP Video Tutorial"

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