PHP提取中文首字母_php技巧

<?     <BR>function pykey( $py_key)     <BR>{     <BR>    $pinyin = 65536 + pys($py_key);     <BR>    if ( 45217 <= $pinyin && $pinyin <= 45252 )     <BR>    {     <BR>        $zimu = "A";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 45253 <= $pinyin && $pinyin <= 45760 )     <BR>    {     <BR>        $zimu = "B";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 45761 <= $pinyin && $pinyin <= 46317 )     <BR>    {     <BR>        $zimu = "C";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 46318 <= $pinyin && $pinyin <= 46825 )     <BR>    {     <BR>        $zimu = "D";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 46826 <= $pinyin && $pinyin <= 47009 )     <BR>    {     <BR>        $zimu = "E";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 47010 <= $pinyin && $pinyin <= 47296 )     <BR>    {     <BR>        $zimu = "F";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 47297 <= $pinyin && $pinyin <= 47613 )     <BR>    {     <BR>        $zimu = "G";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 47614 <= $pinyin && $pinyin <= 48118 )     <BR>    {     <BR>        $zimu = "H";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 48119 <= $pinyin && $pinyin <= 49061 )     <BR>    {     <BR>        $zimu = "J";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 49062 <= $pinyin && $pinyin <= 49323 )     <BR>    {     <BR>        $zimu = "K";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 49324 <= $pinyin && $pinyin <= 49895 )     <BR>    {     <BR>        $zimu = "L";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 49896 <= $pinyin && $pinyin <= 50370 )     <BR>    {     <BR>        $zimu = "M";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 50371 <= $pinyin && $pinyin <= 50613 )     <BR>    {     <BR>        $zimu = "N";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 50614 <= $pinyin && $pinyin <= 50621 )     <BR>    {     <BR>        $zimu = "O";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 50622 <= $pinyin && $pinyin <= 50905 )     <BR>    {     <BR>        $zimu = "P";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 50906 <= $pinyin && $pinyin <= 51386 )     <BR>    {     <BR>        $zimu = "Q";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 51387 <= $pinyin && $pinyin <= 51445 )     <BR>    {     <BR>        $zimu = "R";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 51446 <= $pinyin && $pinyin <= 52217 )     <BR>    {     <BR>        $zimu = "S";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 52218 <= $pinyin && $pinyin <= 52697 )     <BR>    {     <BR>        $zimu = "T";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 52698 <= $pinyin && $pinyin <= 52979 )     <BR>    {     <BR>        $zimu = "W";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 52980 <= $pinyin && $pinyin <= 53640 )     <BR>    {     <BR>        $zimu = "X";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 53689 <= $pinyin && $pinyin <= 54480 )     <BR>    {     <BR>        $zimu = "Y";     <BR>        return $zimu;     <BR>    }     <BR>    if ( 54481 <= $pinyin && $pinyin <= 62289 )     <BR>    {     <BR>        $zimu = "Z";     <BR>        return $zimu;     <BR>    }     <BR>    $zimu = $py_key;     <BR>    return $zimu;     <BR>}     <BR>function pys( $pysa )     <BR>{     <BR>    $pyi = "";     <BR>    $i= 0;     <BR>    for ( ; $i < strlen( $pysa ); $i++)     <BR>    {     <BR>        $_obfuscate_8w= ord( substr( $pysa,$i,1) );     <BR>        if ( 160 < $_obfuscate_8w)     <BR>        {     <BR>            $_obfuscate_Bw = ord( substr( $pysa, $i++, 1 ) );     <BR>            $_obfuscate_8w = $_obfuscate_8w *<em style="color:transparent">本文来源[email protected]搞@^&代*@码)网9</em><strong>搞代gaodaima码</strong> 256 + $_obfuscate_Bw - 65536;     <BR>        }     <BR>        $pyi.= $_obfuscate_8w;     <BR>    }     <BR>    return $pyi;     <BR>}     <BR>$letter = pykey("中华人民共和国");     <BR>echo $letter;     <BR>?> <BR>

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