php抓取程序逻辑代码

public static function crawlContent($url, $encode = true) { $file_name = '../cache/'.md5($url); if (!file_exists($file_name)) { @touch($file_name); } $content = file_get_contents($file_name); if (empty($content)) { $content = Request::curl($url); if (empty($content)) { sleep(1); $content = Request::curl($url); } $encode && $content = iconv("GBK", "UTF-8//IGNORE",$content); file_put_contents($file_name, $content); } return $content;}

 public static function curlContent($url, $encode = true) { //不走缓存 $content = Request::curl($url); if (empty($content)) { sleep(1); $content = Request::curl($url); } $encode && $content = iconv("GBK", "UTF-8//IGNORE",$content); return $content; }