后端开发|php教程
求解释这个函数是什么意思？
后端开发-php教程
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function uc_fopen($url, $limit = 0, $post = \, $cookie = \, $bysocket = FALSE, $ip = \, $timeout = 15, $block = TRUE) {$return = \;$matches = parse_url($url);!isset($matches[host]) && $matches[host] = \;!isset($matches[path]) && $matches[path] = \;!isset($matches[query]) && $matches[query] = \;!isset($matches[port]) && $matches[port] = \;$host = $matches[host];$path = $matches[path] ? $matches[path].($matches[query] ? ?.$matches[query] : \) : /;$port = !empty($matches[port]) ? $matches[port] : 80;if($post) {$out = "POST $path HTTP/1.0\r\n";$out .= "Accept: */*\r\n";//$out .= "Referer: $boardurl\r\n";$out .= "Accept-Language: zh-cn\r\n";$out .= "Content-Type: application/x-www-form-urlencoded\r\n";$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";$out .= "Host: $host\r\n";$out .= Content-Length: .strlen($post)."\r\n";$out .= "Connection: Close\r\n";$out .= "Cache-Control: no-cache\r\n";$out .= "Cookie: $cookie\r\n\r\n";$out .= $post;} else {$out = "GET $path HTTP/1.0\r\n";$out .= "Accept: */*\r\n";//$out .= "Referer: $boardurl\r\n";$out .= "Accept-Language: zh-cn\r\n";$out .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";$out .= "Host: $host\r\n";$out .= "Connection: Close\r\n";$out .= "Cookie: $cookie\r\n\r\n";}if(function_exists(fsockopen)) {$fp = @fsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);} elseif (function_exists(pfsockopen)) {$fp = @pfsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);} else {$fp = false;}if(!$fp) {return \;} else {stream_set_blocking($fp, $block);// 让程序无阻塞stream_set_timeout($fp, $timeout);@fwrite($fp, $out);$status = stream_get_meta_data($fp);//作用于读取流时的时间控制if(!$status[ imed_out]) {while (!feof($fp)) {if(($header = @fgets($fp)) && ($header == "\r\n" || $header == "\n")) {break;}}$stop = false;while(!feof($fp) && !$stop) {$data = fread($fp, ($limit == 0 || $limit > 8192 ? 8192 : $limit));$return .= $data;if($limit) {$limit -= strlen($data);$stop = $limit <= 0;}}}@fclose($fp);return $return;}}
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回复讨论(解决方案)
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读取指定的 $url 的内容
比如：
echo uc_fopen(‘/topics/390509098’);
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