PHP method code example to obtain the first letter of Chinese pinyin

This article mainly introduces the method of obtaining the first letter of Chinese pinyin in php. Friends who need it can refer to it

In reality, we often see such instructions, ranking in no particular order, according to the first letter of the name Sort. This is the sorting method used by most Chinese people. So how to operate it in php program?

Let’s share the method of getting the first letter of Chinese Pinyin in the PHP program. Most of the ones found on the Internet are problematic. This is something that has been applied by the editor in practice and can really be used. oh.

//php获取中文字符拼音首字母 
function getFirstCharter($str){ 
 if(empty($str)){return '';} 
 $fchar=ord($str{0}); 
 if($fchar>=ord(&#39;A&#39;)&&$fchar<=ord(&#39;z&#39;)) return strtoupper($str{0}); 
 $s1=iconv(&#39;UTF-8&#39;,&#39;gb2312&#39;,$str); 
 $s2=iconv(&#39;gb2312&#39;,&#39;UTF-8&#39;,$s1); 
 $s=$s2==$str?$s1:$str; 
 $asc=ord($s{0})*256+ord($s{1})-65536; 
 if($asc>=-20319&&$asc<=-20284) return &#39;A&#39;; 
 if($asc>=-20283&&$asc<=-19776) return &#39;B&#39;; 
 if($asc>=-19775&&$asc<=-19219) return &#39;C&#39;; 
 if($asc>=-19218&&$asc<=-18711) return &#39;D&#39;; 
 if($asc>=-18710&&$asc<=-18527) return &#39;E&#39;; 
 if($asc>=-18526&&$asc<=-18240) return &#39;F&#39;; 
 if($asc>=-18239&&$asc<=-17923) return &#39;G&#39;; 
 if($asc>=-17922&&$asc<=-17418) return &#39;H&#39;; 
 if($asc>=-17417&&$asc<=-16475) return &#39;J&#39;; 
 if($asc>=-16474&&$asc<=-16213) return &#39;K&#39;; 
 if($asc>=-16212&&$asc<=-15641) return &#39;L&#39;; 
 if($asc>=-15640&&$asc<=-15166) return &#39;M&#39;; 
 if($asc>=-15165&&$asc<=-14923) return &#39;N&#39;; 
 if($asc>=-14922&&$asc<=-14915) return &#39;O&#39;; 
 if($asc>=-14914&&$asc<=-14631) return &#39;P&#39;; 
 if($asc>=-14630&&$asc<=-14150) return &#39;Q&#39;; 
 if($asc>=-14149&&$asc<=-14091) return &#39;R&#39;; 
 if($asc>=-14090&&$asc<=-13319) return &#39;S&#39;; 
 if($asc>=-13318&&$asc<=-12839) return &#39;T&#39;; 
 if($asc>=-12838&&$asc<=-12557) return &#39;W&#39;; 
 if($asc>=-12556&&$asc<=-11848) return &#39;X&#39;; 
 if($asc>=-11847&&$asc<=-11056) return &#39;Y&#39;; 
 if($asc>=-11055&&$asc<=-10247) return &#39;Z&#39;; 
 return null; 
}

For example:

echo getFirstCharter('中文网www.php.cn');//结果将输出：Z

The above is the function of PHP to get the first letter of Chinese pinyin. I hope it can help everyone learn PHP betterProgramming .

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