Detailed explanation of php curl_init function usage tutorial

//Initialize a cURL object
$curl = curl_init();
//Set the URL you need to crawl
curl_setopt($curl, CURLOPT_URL, 'http://bbs.it -home.org');
//Set header
curl_setopt($curl, CURLOPT_HEADER, 1);
//Set cURL parameters to require the results to be saved in a string or output to the screen.
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
//Run cURL and request the webpage
$data = curl_exec($curl);
//Close the URL request
curl_close($curl);
//Display the obtained data
 var_dump($data);
?>

Example 2, POST data sendSMS.php, which can accept two form fields, one is the phone number and the other is the text message content. POST data

$phoneNumber　='13812345678';
$message　='This message was generated by curl and php';
$curlPost='pNUMBER='. urlencode($phoneNumber)　. '&MESSAGE ='　.urlencode($message)　.'&SUBMIT=Send';
$ch　= curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://www.lxvoip.com/sendSMS.php');
curl_setopt ($ch, CURLOPT_HEADER, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost); exec() ;
curl_close($ch);
?>

Example 3, using a proxy server.

$ch　= curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://bbs.it-home.org');
curl_setopt($ch, CURLOPT_HEADER, 1 );
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPPROXYTU NNEL, 1); CURLOPT_PROXYUSERPWD ,'user:password');
$data　= curl_exec();
curl_close($ch);
?>


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$discuz_url = 'http://bbs.it-home.org';//Forum address
$login_url = $discuz_url .'/logging.php?action=login';//Login page address
$get_url = $discuz_url .'/ my.php?item=threads'; //My post
$post_fields = array();
//The following two items do not need to be modified
$post_fields['loginfield'] = ' username';
$post_fields['loginsubmit'] = 'true';
//Username and password, must be filled in
$post_fields['username'] = 'lxvoip';
$post_fields['password'] = '88888888' ;
//Security question
$post_fields['questionid'] = 0;
$post_fields['answer'] = '';
//@todo verification code
$post_fields['seccoverify'] = ''; < /p>
//Get form FORMHASH
$ch = curl_init($login_url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$contents = curl_exec ($ch);
curl_close($ch);
preg_match('// i', $contents, $matches);
if(!empty($matches)) {
 $formhash = $matches[1];
} else {
 die('Not found the forumhash.');
} < ;/p>
//POST data, get COOKIE
$cookie_file = dirname(__FILE__) . '/cookie.txt';
//$cookie_file = tempnam('/tmp');
$ch = curl_init($login_url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIEL DS, $post_fields) ;
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie_file);
curl_exec($ch);
curl_close($ch);
//You need to log in to obtain the COOKIE obtained above Viewed page content
$ch = curl_init($get_url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie_file);
$ contents = curl_exec($ch);
curl_close($ch);
var_dump($contents);



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