
Create a new 190.php, as shown in the figure:

##Enter the structure of the php web page (

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Files that declare the interaction between PHP and the browser Type and encoding, as shown in the figure:

Define a string containing Chinese characters, code: $input = "How to match Chinese characters regularly?";, as shown in the figure :

Use the preg_match_all() function to determine whether this string contains Chinese, as shown in the figure:

Run Web page 190.php, output the judgment results, as shown in the figure:

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