Home > Article > Backend Development > PHP: 6 ways to send GET and POST requests, 6 ways to get_PHP tutorial
In the i94web blog, I tried two socialization methods, Changyan and Duoshuo. The comment box was later abandoned because it was unsafe.
Whether it is speaking freely or talking more, I need to grab the number of comments on articles remotely and then store them in the local database. For Duodao, the request format is as follows:
<span>// 获取评论次数,参数是文章ID</span><span> <span>function</span> getCommCount($postid) { $jsondata = file_get_contents(<span>"http://api.duoshuo.com/threads/counts.json?short_name=i94web&threads=$postid"</span>); <span>// 设置true返回数组,不设置或者是false则返回对象</span> $resjson= json_decode($jsondata,<span>true</span>); <span>return</span> $resjson[<span>'response'</span>][$postid][<span>'comments'</span>]; }</span>
For remote requests, there are many methods. Today, LZ has collected six types for your reference.
1. Use file_get_contents to get the content in get mode:
<span><?php $url=<span>'http://www.ido321.com/'</span>; $html = file_get_contents($url); <span>echo</span> $html; ?></span>
2. Use fopen to open the url and use get method to obtain
<span>$fp = fopen($url, <span>'r'</span>); stream_get_meta_data($fp); <span>while</span>(!feof($fp)) { $result .= fgets($fp, 1024); } <span>echo</span> <span>"url body: $result"</span>; fclose($fp);</span>
3. Use file_get_contents to get the content in post mode:
<span>$data = <span>array</span> (<span>'foo'</span> => <span>'bar'</span>); $data = http_build_query($data); $opts = <span>array</span> ( <span>'http'</span> => <span>array</span> ( <span>'method'</span> => <span>'POST'</span>, <span>'header'</span>=> <span>"Content-type: application/x-www-form-urlencodedrn"</span> . <span>'Content-Length: '</span> . strlen($data) . <span>'rn'</span>, <span>'content'</span> => $data ) ); $context = stream_context_create($opts); $html = file_get_contents(<span>'http://localhost/e/admin/test.html'</span>, <span>false</span>, $context); <span>echo</span> $html;</span>
4. Use the fsockopen function to open the url and obtain the complete data in get mode, including header and body. fsockopen requires the allow_url_fopen option in PHP.ini to be turned on
<span>function</span><span> get_url ($url,$cookie=<span>false</span>) { $url = parse_url($url); $query = $url[path].<span>'?'</span>.$url[query]; <span>echo</span> <span>'Query:'</span>.$query; $fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30); <span>if</span> (!$fp) { <span>return</span> <span>false</span>; } <span>else</span> { $request = <span>'GET $query HTTP/1.1rn'</span>; $request .= <span>'Host: $url[host]rn'</span>; $request .= <span>'Connection: Closern'</span>; <span>if</span>($cookie) $request.=<span>'Cookie: $cookien'</span>; $request.=<span>'rn'</span>; fwrite($fp,$request); <span>while</span>(!@feof($fp)) { $result .= @fgets($fp, 1024); } fclose($fp); <span>return</span> $result; } } <span>//获取url的html部分,去掉header</span> <span>function</span> GetUrlHTML($url,$cookie=<span>false</span>) { $rowdata = get_url($url,$cookie); <span>if</span>($rowdata) { $body= stristr($rowdata,<span>'rnrn'</span>); $body=substr($body,4,strlen($body)); <span>return</span> $body; } <span>return</span> <span>false</span>; }</span>
5. Use the fsockopen function to open the url and obtain the complete data in POST mode, including header and body
<span>function</span><span> HTTP_Post($URL,$data,$cookie, $referrer=<span>''</span>) { <span>// parsing the given URL</span> $URL_Info=parse_url($URL); <span>// Building referrer</span> <span>if</span>($referrer==<span>''</span>) <span>// if not given use this script as referrer</span> $referrer=<span>'111'</span>; <span>// making string from $data</span> <span>foreach</span>($data <span>as</span> $key=>$value) $values[]=<span>'$key='</span>.urlencode($value); $data_string=implode(<span>'&'</span>,$values); <span>// Find out which port is needed – if not given use standard (=80)</span> <span>if</span>(!<span>isset</span>($URL_Info[<span>'port'</span>])) $URL_Info[<span>'port'</span>]=80; <span>// building POST-request:</span> $request.=<span>"POST "</span>.$URL_Info[<span>'path'</span>].<span>" HTTP/1.1n"</span>; $request.=<span>"Host: "</span>.$URL_Info[<span>'host'</span>].<span>"n"</span>; $request.=<span>"Referer: $referern"</span>; $request.=<span>"Content-type: application/x-www-form-urlencodedn"</span>; $request.=<span>'Content-length: '</span>.strlen($data_string).<span>"n"</span>; $request.=<span>'Connection: closen'</span>; $request.=<span>'Cookie: $cookien'</span>; $request.=<span>'n'</span>; $request.=$data_string.<span>'n'</span>; $fp = fsockopen($URL_Info[<span>'host'</span>],$URL_Info[<span>'port'</span>]); fputs($fp, $request); <span>while</span>(!feof($fp)) { $result .= fgets($fp, 1024); } fclose($fp); <span>return</span> $result; }</span>
6. Use the curl library. Before using the curl library, you may need to check whether the curl extension has been turned on in php.ini
<span>$ch = curl_init(); $timeout = 5; curl_setopt ($ch, CURLOPT_URL, ‘http:<span>//www.ido321.com/');</span> curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout); $file_contents = curl_exec($ch); curl_close($ch); <span>echo</span> $file_contents;</span>
Original article first published: http://www.ido321.com/1297.html