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php取得字符串首字母的方法

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Release: 2016-06-06 20:05:58
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这篇文章主要介绍了php取得字符串首字母的方法,支持中文字符串的操作,涉及php操作字符串的技巧,具有一定参考借鉴价值,需要的朋友可以参考下

本文实例讲述了php取得字符串首字母的方法。分享给大家供大家参考。具体实现方法如下:

"; $i=0; while($i='B0'){ //汉字的开始 $t=getLetter(hexdec(bin2hex(substr($str,$i,2)))); printf("%c",$t==-1 ? '*' : $t ); $i+=2; } else{ printf("%s",substr($str,$i,1)); $i++; } } function getLetter($num){ global $limit; $char_index=65; foreach($limit as $k=>$v){ if($num>=$v[0] && $num

希望本文所述对大家的php程序设计有所帮助。

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