来自 计算机教程 2019-08-17 17:08 的文章
当前位置: 美洲杯冠军竞猜 > 计算机教程 > 正文

用PHP提取中英文词语以及数字的首字母的方法介

    }

例2

遗留问题:仍有少量词语无法提取,如亘古不灭,的G 没有提取出来

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<?php 
function getfirstchar($s0){   
    $fchar = ord($s0{0});
    if($fchar >= ord("A") and $fchar <= ord("z") )return strtoupper($s0{0});
    $s1 = iconv("UTF-8","gb2312", $s0);
    $s2 = iconv("gb2312","UTF-8", $s1);
    if($s2 == $s0){$s = $s1;}else{$s = $s0;}
    $asc = ord($s{0}) * 256 ord($s{1}) - 65536;
    if($asc >= -20319 and $asc <= -20284) return "A";
    if($asc >= -20283 and $asc <= -19776) return "B";
    if($asc >= -19775 and $asc <= -19219) return "C";
    if($asc >= -19218 and $asc <= -18711) return "D";
    if($asc >= -18710 and $asc <= -18527) return "E";
    if($asc >= -18526 and $asc <= -18240) return "F";
    if($asc >= -18239 and $asc <= -17923) return "G";
    if($asc >= -17922 and $asc <= -17418) return "I";
    if($asc >= -17417 and $asc <= -16475) return "J";
    if($asc >= -16474 and $asc <= -16213) return "K";
    if($asc >= -16212 and $asc <= -15641) return "L";
    if($asc >= -15640 and $asc <= -15166) return "M";
    if($asc >= -15165 and $asc <= -14923) return "N";
    if($asc >= -14922 and $asc <= -14915) return "O";
    if($asc >= -14914 and $asc <= -14631) return "P";
    if($asc >= -14630 and $asc <= -14150) return "Q";
    if($asc >= -14149 and $asc <= -14091) return "R";
    if($asc >= -14090 and $asc <= -13319) return "S";
    if($asc >= -13318 and $asc <= -12839) return "T";
    if($asc >= -12838 and $asc <= -12557) return "W";
    if($asc >= -12556 and $asc <= -11848) return "X";
    if($asc >= -11847 and $asc <= -11056) return "Y";
    if($asc >= -11055 and $asc <= -10247) return "Z";
    return null;
}
 
 
function pinyin1($zh){
    $ret = "";
    $s1 = iconv("UTF-8","gb2312", $zh);
    $s2 = iconv("gb2312","UTF-8", $s1);
    if($s2 == $zh){$zh = $s1;}
    for($i = 0; $i < strlen($zh); $i ){
        $s1 = substr($zh,$i,1);
        $p = ord($s1);
        if($p > 160){
            $s2 = substr($zh,$i ,2);
            $ret .= getfirstchar($s2);
        }else{
            $ret .= $s1;
        }
    }
    return $ret;
}
echo "这是中文字符串<br/>";
echo pinyin1('这是中文字符串');
 
?>

2B——>E

 代码如下

傻X——>S

 代码如下

复制代码 代码如下:

<?php
 /**
* 修复二分法查找方法
* 汉字拼音首字母工具类
*  注: 英文的字串:不变返回(包括数字)    eg .abc123 => abc123
*      中文字符串:返回拼音首字符        eg. 测试字符串 => CSZFC
*      中英混合串: 返回拼音首字符和英文   eg. 我i我j => WIWJ
*  eg.
*  $py = new str2PY();
*  $result = $py->getInitials('啊吧才的饿飞就好i就看了吗你哦平去人是他uv我想一在');
*/
class str2PY
{
    private $_pinyins = array(
        176161 => 'A',
        176197 => 'B',
        178193 => 'C',
        180238 => 'D',
        182234 => 'E',
        183162 => 'F',
        184193 => 'G',
        185254 => 'H',
        187247 => 'J',
        191166 => 'K',
        192172 => 'L',
        194232 => 'M',
        196195 => 'N',
        197182 => 'O',
        197190 => 'P',
        198218 => 'Q',
        200187 => 'R',
        200246 => 'S',
        203250 => 'T',
        205218 => 'W',
        206244 => 'X',
        209185 => 'Y',
        212209 => 'Z',
    );
    private $_charset = null;
    /**
     * 构造函数, 指定需要的编码 default: utf-8
     * 支持utf-8, gb2312
     *
     * @param unknown_type $charset
     */
    public function __construct( $charset = 'utf-8' )
    {
        $this->_charset    = $charset;
    }
    /**
     * 中文字符串 substr
     *
     * @param string $str
     * @param int    $start
     * @param int    $len
     * @return string
     */
    private function _msubstr ($str, $start, $len)
    {
        $start  = $start * 2;
        $len    = $len * 2;
        $strlen = strlen($str);
        $result = '';
        for ( $i = 0; $i < $strlen; $i ) {
            if ( $i >= $start && $i < ($start $len) ) {
                if ( ord(substr($str, $i, 1)) > 129 ) $result .= substr($str, $i, 2);
                else $result .= substr($str, $i, 1);
            }
            if ( ord(substr($str, $i, 1)) > 129 ) $i ;
        }
        return $result;
    }
    /**
     * 字符串切分为数组 (汉字或者一个字符为单位)
     *
     * @param string $str
     * @return array
     */
    private function _cutWord( $str )
    {
        $words = array();
         while ( $str != "" )
         {
            if ( $this->_isAscii($str) ) {/*非中文*/
                $words[] = $str[0]篮球世界杯冠军竞猜,;
                $str = substr( $str, strlen($str[0]) );
            }else{
                $word = $this->_msubstr( $str, 0, 1 );
                $words[] = $word;
                $str = substr( $str, strlen($word) );
            }
         }
         return $words;
    }
    /**
     * 判断字符是否是ascii字符
     *
     * @param string $char
     * @return bool
     */
    private function _isAscii( $char )
    {
        return ( ord( substr($char,0,1) ) < 160 );
    }
    /**
     * 判断字符串前3个字符是否是ascii字符
     *
     * @param string $str
     * @return bool
     */
    private function _isAsciis( $str )
    {
        $len = strlen($str) >= 3 ? 3: 2;
        $chars = array();
        for( $i = 1; $i < $len -1; $i ){
            $chars[] = $this->_isAscii( $str[$i] ) ? 'yes':'no';
        }
        $result = array_count_values( $chars );
        if ( empty($result['no']) ){
            return true;
        }
        return false;
    }
    /**
     * 获取中文字串的拼音首字符
     *
     * @param string $str
     * @return string
     */
    public function getInitials( $str )
    {
        if ( empty($str) ) return '';
        if ( $this->_isAscii($str[0]) && $this->_isAsciis( $str )){
            return $str;
        }
        $result = array();
        if ( $this->_charset == 'utf-8' ){
            $str = iconv( 'utf-8', 'gb2312', $str );
        }
        $words = $this->_cutWord( $str );
        foreach ( $words as $word )
        {
            if ( $this->_isAscii($word) ) {/*非中文*/
                $result[] = $word;
                continue;
            }
            $code = ord( substr($word,0,1) ) * 1000 ord( substr($word,1,1) );
            /*获取拼音首字母A--Z*/
            if ( ($i = $this->_search($code)) != -1 ){
                $result[] = $this->_pinyins[$i];
            }
        }
        return strtoupper(implode('',$result));
    }
    private function _getChar( $ascii )
    {
        if ( $ascii >= 48 && $ascii <= 57){
            return chr($ascii);  /*数字*/
        }elseif ( $ascii>=65 && $ascii<=90 ){
            return chr($ascii);   /* A--Z*/
        }elseif ($ascii>=97 && $ascii<=122){
            return chr($ascii-32); /* a--z*/
        }else{
            return '-'; /*其他*/
        }
    }

private function getfirstchar($s0){
        $s=iconv('UTF-8','gb2312', $s0);
        if (ord($s0)>128) { //汉字开头
            $asc=ord($s{0})*256 ord($s{1})-65536;
            if($asc>=-20319 and $asc<=-20284)return "A";
            if($asc>=-20283 and $asc<=-19776)return "B";
            if($asc>=-19775 and $asc<=-19219)return "C";
            if($asc>=-19218 and $asc<=-18711)return "D";
            if($asc>=-18710 and $asc<=-18527)return "E";
            if($asc>=-18526 and $asc<=-18240)return "F";
            if($asc>=-18239 and $asc<=-17923)return "G";
            if($asc>=-17922 and $asc<=-17418)return "I";             
            if($asc>=-17417 and $asc<=-16475)return "J";             
            if($asc>=-16474 and $asc<=-16213)return "K";             
            if($asc>=-16212 and $asc<=-15641)return "L";             
            if($asc>=-15640 and $asc<=-15166)return "M";             
            if($asc>=-15165 and $asc<=-14923)return "N";             
            if($asc>=-14922 and $asc<=-14915)return "O";             
            if($asc>=-14914 and $asc<=-14631)return "P";             
            if($asc>=-14630 and $asc<=-14150)return "Q";             
            if($asc>=-14149 and $asc<=-14091)return "R";             
            if($asc>=-14090 and $asc<=-13319)return "S";             
            if($asc>=-13318 and $asc<=-12839)return "T";             
            if($asc>=-12838 and $asc<=-12557)return "W";             
            if($asc>=-12556 and $asc<=-11848)return "X";             
            if($asc>=-11847 and $asc<=-11056)return "Y";             
            if($asc>=-11055 and $asc<=-10247)return "Z"; 
        }else if(ord($s)>=48 and ord($s)<=57){ //数字开头
            switch(iconv_substr($s,0,1,'utf-8'))
            {
                case 1:return "Y";
                case 2:return "E";
                case 3:return "S";
                case 4:return "S";
                case 5:return "W";
                case 6:return "L";
                case 7:return "Q";
                case 8:return "B";
                case 9:return "J";
                case 0:return "L";
            }               
        }else if(ord($s)>=65 and ord($s)<=90){ //大写英文开头
            return substr($s,0,1);
        }else if(ord($s)>=97 and ord($s)<=122){ //小写英文开头
            return strtoupper(substr($s,0,1));
        }
        else
        {
            return iconv_substr($s0,0,1,'utf-8');//中英混合的词语,不适合上面的各种情况,因此直接提取首个字符即可
        }

 

本文由美洲杯冠军竞猜发布于计算机教程,转载请注明出处:用PHP提取中英文词语以及数字的首字母的方法介

关键词: