How to convert Chinese characters to ascii in php

php method to convert Chinese characters to ascii: first create a php sample file; then use the encapsulated "public function strtoascii($str){}" method to convert Chinese characters to ascii.

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Use it directly, the function is below, encapsulated by yourself, Personal test is correct

Convert the string (also practical for Chinese) to ascii (note: I default that our current php file environment is UTF-8, if it is GBK, the mb_convert_encoding operation is not required)

public function strtoascii($str){
        $str=mb_convert_encoding($str,'GB2312');
        $change_after='';
        for($i=0;$i<strlen($str);$i++){
            $temp_str=dechex(ord($str[$i]));
            $change_after.=$temp_str[1].$temp_str[0];
        }
        return strtoupper($change_after);
    }

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