《PHP編程：php實現httpRequest的方法》要點：
本文介紹了PHP編程：php實現httpRequest的方法，希望對您有用。如果有疑問，可以聯系我們。
PHP應用本文實例講述了php實現httpRequest的辦法.分享給大家供大家參考.具體如下：
PHP應用想從學校圖書館的網站上抓取數據處理之后在返回給瀏覽器,試了不少辦法.首先試了http_request(),但是這個學院pecl_http支持,后來又試了網上流傳甚廣的class HttpRequest,可能是我不會使用,也失敗了.后來看到了函數httpRequest($url, $post='', $method='GET', $limit=0, $returnHeader=FALSE, $cookie='', $bysocket=FALSE, $ip='', $timeout=15, $block=TRUE),用它成功了,因此貼出來分享一下.函數代碼如下：
代碼如下:
<?php?
??? /**
??? * Respose A Http Request
??? *
??? * @param string $url
??? * @param array $post
??? * @param string $method
??? * @param bool $returnHeader
??? * @param string $cookie
??? * @param bool $bysocket
??? * @param string $ip
??? * @param integer $timeout
??? * @param bool $block
??? * @return string Response
??? */?
??? function httpRequest($url,$post='',$method='GET',$limit=0,$returnHeader=FALSE,$cookie='',$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']) ? $matches['port'] : 80;?
?????? if(strtolower($method) == 'post') {?
?????????? $post = (is_array($post) and !empty($post)) ? http_build_query($post) : $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";?
?????? }?
?????? $fp = fsockopen(($ip ? $ip : $host), $port, $errno, $errstr, $timeout);?
?????? if(!$fp) return ''; else {?
?????????? $header = $content = '';?
?????????? stream_set_blocking($fp, $block);?
?????????? stream_set_timeout($fp, $timeout);?
?????????? fwrite($fp, $out);?
?????????? $status = stream_get_meta_data($fp);?
?????????? if(!$status['timed_out']) {//未超時?
?????????????? while (!feof($fp)) {?
?????????????????? $header .= $h = fgets($fp);?
?????????????????? if($h && ($h == "\r\n" ||? $h == "\n")) break;?
?????????????? }?
?
?????????????? $stop = false;?
?????????????? while(!feof($fp) && !$stop) {?
?????????????????? $data = fread($fp, ($limit == 0 || $limit > 8192 ? 8192 : $limit));?
?????????????????? $content .= $data;?
?????????????????? if($limit) {?
?????????????????????? $limit -= strlen($data);?
?????????????????????? $stop = $limit <= 0;?
?????????????????? }?
?????????????? }?
?????????? }?
??????? fclose($fp);?
?????????? return $returnHeader ? array($header,$content) : $content;?
?????? }?
??? }?
?>
PHP應用調用也很簡單的.簡單的例子：
代碼如下:
echo httpRequest('http://www.baidu.com');
PHP應用希望本文所述對大家的php程序設計有所贊助.
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