PHP全角字符字母替换成半角字母的函数。
PHP全角字符字母替换成半角字母的函数。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');
$repstr = array(
' '=>'',' '=>'','.'=>'','【'=>'','〓'=>'','◆'=>'','】'=>'','★'=>'',
'～'=>'','！'=>'','＠'=>'','＃'=>'','￥'=>'','％'=>'','……'=>'','＆'=>'',
'×'=>'','（'=>'','）'=>'','——'=>'','＋'=>'','｜'=>'','＝'=>'','?'=>'','？'=>''
);
$newstr = strtr($str, $arr); //全角转半角
$newstr = strtr($newstr, $repstr); //去杂字符
return $newstr;
}
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