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PHP自定义函数:全角半角实现互转

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2016-06-13 10:40:441101browse

function SBC_DBC($str,$args2) { //半角和全角转换函数,第二个参数如果是0,则是半角到全角;如果是1,则是全角到半角
    $DBC = array(
        0 , 1 , 2 , 3 , 4 ,  
        5 , 6 , 7 , 8 , 9 ,
        A , B , C , D , E ,  
        F , G , H , I , J ,
        K , L , M , N , O ,  
        P , Q , R , S , T ,
        U , V , W , X , Y ,  
        Z , a , b , c , d ,
        e , f , g , h , i ,  
        j , k , l , m , n ,
        o , p , q , r , s ,  
        t , u , v , w , x ,
        y , z , - ,    , : ,
  . , , , / , % , # ,
  ! , @ , & , ( , ) ,
  < , > , " , ' , ? ,
  [ , ] , { , } , \ ,
  | , + , = , _ , ^ ,
  ¥ ,  ̄ , `
    );
  $SBC = array( //半角
         0, 1, 2, 3, 4,  
         5, 6, 7, 8, 9,
         A, B, C, D, E,  
         F, G, H, I, J,
         K, L, M, N, O,  
         P, Q, R, S, T,
         U, V, W, X, Y,  
         Z, a, b, c, d,
         e, f, g, h, i,  
         j, k, l, m, n,
         o, p, q, r, s,  
         t, u, v, w, x,
         y, z, -, , :,
   ., ,, /, %, #,
   !, @, &, (, ),
   , ", ,?,
   [, ], {, }, \,
   |, , =, _, ^,
   $, ~, `
    );
if($args2==0)
   return str_replace($SBC,$DBC,$str);  //半角到全角
if($args2==1)
   return str_replace($DBC,$SBC,$str);  //全角到半角
else
   return false;
}

//函数调用
$str = "alskdf";
echo $str;
echo "
";
echo SBC_DBC($str,0);
echo SBC_DBC($str,1);
?>

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