curl

http_build_query这个函数可以很方便的构造一个请求所需要的参数。(不分GET,POST) 这个函数可以把一个数组转化为一串字符 栗子1： <?php $data = array('foo'=>'bar', 'baz'=>'boom', 'cow'=>'milk', 'php'=>'hypertext processor'); //第二个参数是分割使用的符号 echo http_build_query($data) . "\n"; echo http_build_query($data, '', '&amp;'); # foo=bar&baz=boom&cow=milk&php=hypertext+processor # foo=bar&amp;baz=boom&amp;cow=milk&amp;php=hypertext+processor ?> 栗子二： <?php $data = array('user'=>array('name'=>'Bob Smith', 'age'=>47, 'sex'=>'M', 'dob'=>'5/12/1956'), 'pastimes'=>array('golf', 'opera', 'poker', 'rap'), 'children'=>array('bobby'=>array('age'=>12, 'sex'=>'M'), 'sally'=>array('age'=>8, 'sex'=>'F')), 'CEO'); //第二个参数，如果数组没有键值，则自动添加键值 echo http_build_query($data, 'flags_'); ?> 输出： user%5Bname%5D=Bob+Smith&user%5Bage%5D=47&user%5Bsex%5D=M&user%5Bdob%5D=5%2F12%2F1956&pastimes%5B0%5D=golf&pastimes%5B1%5D=opera&pastimes%5B2%5D=poker&pastimes%5B3%5D=rap&children%5Bbobby%5D%5Bage%5D=12&children%5Bbobby%5D%5Bsex%5D=M&children%5Bsally%5D%5Bage%5D=8&children%5Bsally%5D%5Bsex%5D=F&flags_0=CEO 把上面的请求传给一个PHP文件处理，打印传递来的参数，会得到以下结果： Array ( [_GET] => Array ( [user] => Array ( [name] => Bob Smith [age] => 47 [sex] => M [dob] => 5/12/1956 ) [pastimes] => Array ( [0] => golf [1] => opera [2] => poker [3] => rap ) [children] => Array ( [bobby] => Array ( [age] => 12 [sex] => M ) [sally] => Array ( [age] => 8 [sex] => F ) ) [flags_0] => CEO ) [_POST] => Array ( ) [_COOKIE] => Array ( [PHPSESSID] => 5u7l53inhrl5j1ojmn65ok4k44 ) [_FILES] => Array ( ) [GLOBALS] => Array *RECURSION* ) 很神奇吧！...

这个是采集基础，最好熟悉一下 $ch = curl_init(); # 设定url和把结果返回，是否返回头部 curl_setopt($ch, CURLOPT_URL, 'http://www.baidu.com/'); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($this->ch, CURLOPT_HEADER, 1); # cookie文件设定 curl_setopt($this->ch, CURLOPT_COOKIEJAR, $cookie_file); curl_setopt($this->ch, CURLOPT_COOKIEFILE, $cookie_file); # 额外头部 curl_setopt($this->ch, CURLOPT_HTTPHEADER, array('User-Agent: Mozilla/5.0')); # 设定post curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_POSTFIELDS, $poststring); # 连接、执行过期时间 curl_setopt($this->ch, CURLOPT_CONNECTTIMEOUT, 5); curl_setopt($this->ch, CURLOPT_TIMEOUT, 30); # 是否跟随301 302 curl_setopt($this->ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($this->ch, CURLOPT_MAXREDIRS, 10); # refer curl_setopt($this->ch, CURLOPT_REFERER, $refer); # http版本和端口重用设置 curl_setopt($this->ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1); curl_setopt($this->ch, CURLOPT_FORBID_REUSE, 1); # 支持https curl_setopt($this->ch, CURLOPT_SSL_VERIFYPEER, 0); curl_setopt($this->ch, CURLOPT_SSL_VERIFYHOST, 0); # 如果需要进行毫秒超时，需要增加： curl_setopt($this->ch, CURLOPT_NOSIGNAL, 1); # 执行 $response = curl_exec($ch); if(curl_errno($ch)){ curl_error($ch); exit(); } curl_close($ch);