/** - * 截取中英文混合的字符串
 - * by bbs.it-home.org
 - */
 - function mb_str_split($string){  
 -     # Split at all position not after the start: ^   
 -     # and not before the end: $   
 -     //$string = iconv('gb2312', 'utf-8//ignore', $string);  
 -     return preg_split('/(?}
 $string = 'q345e q345d q345c,q345d圆钢,q345e圆钢nm360a耐磨板,欧标s355低合金板 bs700mc汽车板,汽车qste460tm结构钢,船板ah36/eh36/dh36,美标容器板 耐候钢 弹簧钢';   - //$charlist = mb_str_split($string);  
 - echo mb_chunk_split($string, 30, '..', true);  
 - echo '
 ';   - echo mb_chunk_split($string, 10, '
 ');   -   
 - function mb_chunk_split($string, $length, $end = '..', $once = false){  
 -     //$string = iconv('gb2312', 'utf-8//ignore', $string);    
 -     $charlist = mb_str_split($string);  
 -     $i = 0;  
 -     $j = 0;  
 -     $once_array = array();  
 -     foreach($charlist as $value){  
 -         /* if($once){ 
 -           if(($i + $j) > $length){ 
 -           $i--; //尽可能少的 
 -           break; 
 -           } 
 -           }else{ 
 -           if(($i + $j) >= $length){ 
 -           $once_array[] = implode('', array_slice($charlist, $once_leng, $i)); 
 -           $once_leng += $i; 
 -           $i = $j = 0; 
 -           } 
 -           } */  
 -   
 -         if(($i + $j) >= $length){  
 -             if($once)  
 -                 return implode('', array_slice($charlist, 0, $i-1)) . (count($charlist) <= $i ? '' : $end);  
 -             $once_array[] = $i;  
 -             $i = $j = 0;  
 -         }  
 -   
 -   
 -         if(ord($value) > 127)  
 -             $j++; //中文算2个宽度  
 -         /*if($value == ',') 
 -             $j--;*/  
 -         $i++;  
 -     }  
 -     //末尾补齐  
 -     if(array_sum($once_array) < count($charlist))  
 -         $once_array[] = $i;  
 -   
 -     $str_arr = array();  
 -     $once_leng = 0;  
 -     foreach($once_array as $value){  
 -         $str_arr[] = implode('', array_slice($charlist, $once_leng, $value));  
 -         $once_leng += $value;  
 -     }  
 -   
 -     return implode($end, $str_arr);  
 -     //return implode('', array_slice($charlist, 0, $i)) . (count($charlist) <= $i ? '' : $end);  
 - } 
 - ?> 
 
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