How to determine whether a string has Chinese characters in php

php method to determine whether a string contains Chinese characters: 1. Create a new php file; 2. Use the header() method to set the encoding format of the page to utf-8; 3. Store a string containing Chinese characters In the $str variable; 4. Use the preg_match function to match Chinese using regular expressions; 5. Use the if statement to judge the result of the previous step, and then output different prompt results through echo.

The operating environment of this tutorial: Windows 10 system, PHP version 8.1, DELL G3 computer

php How to determine whether a string exists Chinese?

Create a new php file named test.php to explain how to determine whether a string contains Chinese in PHP. Chou Li Zheng

#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, store a string containing Chinese characters in the $str variable.

In the test.php file, use the preg_match() function to match Chinese using regular expressions, and the result is saved in the $res variable. If there is no Chinese in the string, the result is false.

In the test.php file, use the if statement to judge the result of the previous step, and output different prompt results through echo.

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

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