php 全角转半角
date:星期二, 三月 30th, 2010 at 4:47 上午 Categories:php
找了几个函数
目前用的是第一个,虽然。。。不是很帅。。但是还是比较准的
/** * 将一个字串中含有全角的数字字符、字母、空格或'%+-()'字符转换为相应半角字符 * * @access public * @param string $str 待转换字串 * * @return string $str 处理后字串 */ function make_semiangle($str) { $arr = array('０' => '0', '１' => '1', '２' => '2', '３' => '3', '４' => '4', '５' => '5', '６' => '6', '７' => '7', '８' => '8', '９' => '9', 'Ａ' => 'A', 'Ｂ' => 'B', 'Ｃ' => 'C', 'Ｄ' => 'D', 'Ｅ' => 'E', 'Ｆ' => 'F', 'Ｇ' => 'G', 'Ｈ' => 'H', 'Ｉ' => 'I', 'Ｊ' => 'J', 'Ｋ' => 'K', 'Ｌ' => 'L', 'Ｍ' => 'M', 'Ｎ' => 'N', 'Ｏ' => 'O', 'Ｐ' => 'P', 'Ｑ' => 'Q', 'Ｒ' => 'R', 'Ｓ' => 'S', 'Ｔ' => 'T', 'Ｕ' => 'U', 'Ｖ' => 'V', 'Ｗ' => 'W', 'Ｘ' => 'X', 'Ｙ' => 'Y', 'Ｚ' => 'Z', 'ａ' => 'a', 'ｂ' => 'b', 'ｃ' => 'c', 'ｄ' => 'd', 'ｅ' => 'e', 'ｆ' => 'f', 'ｇ' => 'g', 'ｈ' => 'h', 'ｉ' => 'i', 'ｊ' => 'j', 'ｋ' => 'k', 'ｌ' => 'l', 'ｍ' => 'm', 'ｎ' => 'n', 'ｏ' => 'o', 'ｐ' => 'p', 'ｑ' => 'q', 'ｒ' => 'r', 'ｓ' => 's', 'ｔ' => 't', 'ｕ' => 'u', 'ｖ' => 'v', 'ｗ' => 'w', 'ｘ' => 'x', 'ｙ' => 'y', 'ｚ' => 'z', '（' => '(', '）' => ')', '〔' => '[', '〕' => ']', '【' => '[', '】' => ']', '〖' => '[', '〗' => ']', '“' => '[', '”' => ']', '‘' => '[', '’' => ']', '｛' => '{', '｝' => '}', '《' => '<', '》' => '>', '％' => '%', '＋' => '+', '—' => '-', '－' => '-', '～' => '-', '：' => ':', '。' => '.', '、' => ',', '，' => '.', '、' => '.', '；' => ',', '？' => '?', '！' => '!', '…' => '-', '‖' => '|', '”' => '"', '’' => '`', '‘' => '`', '｜' => '|', '〃' => '"', ' ' => ' '); return strtr($str, $arr); }
另外还有一个
看起来很帅的代码
不过貌似有问题
虽然全角是转半角了
但是有部分中文字也出错了貌似。
function &StrToDBC($str,$Encode='GBK'){ if($Encode!='UTF8')$str=mb_convert_encoding($str,'UTF-8',$Encode); $ret=''; for($i=0;$s1=$str[$i],$i<strlen($str);$i++){ if(($c=ord($s1))&0x80){ $s2=$str[++$i]; $s3=$str[++$i]; $c=(($c&0xF)<<12)|((ord($s2)&0x3F)<<6)|(ord($s3)&0x3F); if($c==12288){ $ret.=' '; }elseif($c>65280&&$c<65375){ $c-=65248; $ret.=chr($c); }else{ $ret.=$s1.$s2.$s3; } }else{ $ret.=$str[$i]; } }