PHP 实现explort() 功能的详解_PHP教程

复制代码 代码如下:

/**
 * PHP 实现explort() 功能的详解
 */
$str = ',1,2,3,4,321321,aaa,bbb';
function myExplode($seg,$str,$limit=0){
   $_ret = array(0=>'');
   $len = strlen($str);
   $slen = strlen($seg);
   $_limit = 0;
   for($i=0; $i      if(substr($str,$i,$slen) == $seg ){
          $_limit++;
          $i += $slen-1;
          continue;
      }else{
          $_ret[$_limit] .= $str[$i];
      }
   }
   if($limit       $_ret = array_slice($_ret, 0 , $limit );
   else{
      $_ret = $limit >= count($_ret) ? $_ret :  array_merge(array_slice($_ret, 0 , $limit-1 ), array(implode( $seg , array_slice($_ret,$limit-1))));
   }
   return $_ret;
}
var_dump(myExplode("4",$str));
echo "
";
var_dump(explode("4",$str));
echo "
";
?>

支持 limit 为负。。分割符为字符串

http://www.bkjia.com/PHPjc/327728.htmlwww.bkjia.comtruehttp://www.bkjia.com/PHPjc/327728.htmlTechArticle复制代码 代码如下: ?php /** * PHP 实现explort() 功能的详解 */ $str = ',1,2,3,4,321321,aaa,bbb'; function myExplode($seg,$str,$limit=0){ $_ret = array(0=''); $len = s...