1.fopen方式
//访问指定URL函数function access_url($url) { if ($url=='') return false; $fp = fopen($url, 'r') or exit('Open url faild!'); if($fp){ while(!feof($fp)) { $file.=fgets($fp).""; } fclose($fp); } return $file; }推荐学习：PHP视频教程
2.file_get_contents方式（打开远程文件的时候会造成CPU飙升。file_get_contents其实也可以post）
$content = file_get_contents("http://www.google.com");3.curl方式
function curl_file_get_contents($durl){ $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, $durl); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true) ; // 获取数据返回 curl_setopt($ch, CURLOPT_BINARYTRANSFER, true) ; // 在启用 CURLOPT_RETURNTRANSFER 时候将获取数据返回 $r = curl_exec($ch); curl_close($ch); return $r; }4.fsockopen方式（只能获取网站主页信息，其他页面不可以）
$fp = fsockopen("www.example.com", 80, $errno, $errstr, 30); if (!$fp) { echo "$errstr ($errno)<br />\n"; } else { $out="GET / HTTP/1.1\r\n"; $out.="Host: www.example.com\r\n"; $out.="Connection: Close\r\n\r\n"; fwrite($fp, $out); while (!feof($fp)) { echo fgets($fp, 128); } fclose($fp); }以上就是php访问url的四种方式的详细内容，更多请关注求知技术网其它相关文章！
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