php curl的基礎知識

$ch = curl_init();   
       
# 設定url和把結果返回，是否返回頭部   
curl_setopt($ch, CURLOPT_URL, 'http://www.baidu.com/');   
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);   
curl_setopt($this->ch, CURLOPT_HEADER, 1);   
       
# cookie文件設定   
curl_setopt($this->ch, CURLOPT_COOKIEJAR,  $cookie_file);   
curl_setopt($this->ch, CURLOPT_COOKIEFILE, $cookie_file);   
       
# 額外頭部   
curl_setopt($this->ch, CURLOPT_HTTPHEADER, array('User-Agent: Mozilla/5.0'));   
       
# 設定post   
curl_setopt($ch, CURLOPT_POST, 1);   
curl_setopt($ch, CURLOPT_POSTFIELDS, $poststring);   
       
# 連接、執行過期時間   
curl_setopt($this->ch, CURLOPT_CONNECTTIMEOUT, 5);   
curl_setopt($this->ch, CURLOPT_TIMEOUT, 5);   
       
# 是否跟隨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版本和端口重用設置   
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);   
       
# 執行   
curl_setopt($this->ch, CURLOPT_NOSIGNAL, 1);   
$response = curl_exec($ch);   
if(curl_errno($ch)){   
    curl_error($ch);   
    exit();   
}   
curl_close($ch);

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