【phpstudy】php 获取网页外部链接正则表达式

 代码如下

preg_match_all("//i",$webContent,$link);
 $urls =array();
 foreach($link[0] as $value)
 {
  if(strstr($value,"http") )
  {
   if(strstr($value, $ex[3]) || strstr( $value,$ex[0]) || strstr($value,$ex[1]) || strstr($value,$ex[2]))
   {
     continue;
   }
   else
   {
    preg_match_all("/hrefs*=s*([""]?)(.*?)\1/is", $value, $vlink);    
    $urls[] = $vlink[2];
   }
  }
 }
 $strUrl = deleteEmptyArray( $urls);

function deleteEmptyArray( $val )
{
 $links ="";
 if( is_array( $val ) )
 {
  foreach( $val as $v =>$_v)
  {
   if( !empty( $_v[0] ) )
   {
    $links .=$_v[0]."|";
   }
  }  
  return substr($links,0,-1);
 }
 else
 {
  return false;
 }
}

 

【phpstudy】php 获取网页外部链接正则表达式

http://m.bbyears.com/aspjiaocheng/23316.html

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