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php 自定义UTF8和cp1251函数 - php函数

php 自定义UTF8和cp1251函数

当你需要从utf8转换一些数据,cp1251(窗- 1251)或cp1251到utf8你必须使用系统功能的iconv。常见的主机服务商不允许使用此功能,下面是一个php自定义UTF8和cp1251的函数:

<?php  */  function  cp1251_to_utf8( $s ){              $c209  =  chr (209);  $c208  =  chr (208);  $c129  =  chr (129);              for ( $i =0;  $i < strlen ( $s );  $i ++)    {                  $c =ord( $s [ $i ]);                  if  ( $c >=192  and   $c <=239)  $t .= $c208 . chr ( $c -48);                  elseif  ( $c >239)  $t .= $c209 . chr ( $c -112);                  elseif  ( $c ==184)  $t .= $c209 . $c209 ;                  elseif  ( $c ==168)     $t .= $c208 . $c129 ;                  else   $t .= $s [ $i ];             }              return   $t ;         }           function  utf8_to_cp1251( $s )          {               for  ( $c =0; $c < strlen ( $s ); $c ++)              {                  $i =ord( $s [ $c ]);                  if  ( $i <=127)  $out .= $s [ $c ];                      if  ( $byte2 ){                          $new_c2 =( $c1 &3)*64+( $i &63);                          $new_c1 =( $c1 >>2)&5;                          $new_i = $new_c1 *256+ $new_c2 ;                      if  ( $new_i ==1025){                          $out_i =168;                     }  else  {                          if  ( $new_i ==1105){                              $out_i =184;                         }  else  {                              $out_i = $new_i -848;                         }                     }                      $out .= chr ( $out_i );                      $byte2 =false;                     }                  if  (( $i >>5)==6) {                      $c1 = $i ;                      $byte2 =true;                 }              }               return   $out ;          }  ?> 

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