php采集一网站的精美图片

(.*)(.*)/isU';
preg_match_all($preg,$file,$string);
set_time_limit(0);
 
foreach($string[2] as $key=>$value){
    //echo $value;
    $pattern_src = '/href="(.*)">");
 
    $img=GrabImage($str[1][0],"","");
 
    if($img){
        echo 'sucess';
    }else{
        echo "false";
    }
}
 
}
?>