php|architect's Guide to Web Scraping with PHP - Wind Business ...

cURL Extension ” 37
$data = array(
’param1’ => ’value1’,
’param2’ => ’value2’,
’file1’ => ’@/path/to/file’,
’file2’ => ’@/path/to/other/file’
);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, ’http://localhost.example/process’);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);
?>
H ere are the differences between this example and the previous one.
• The URL is passed using the curl_setopt function this time, just to sho w ho w
to do it without passing it to the curl_init function. This is important when
reusing cURL session handles with different URLs.
• CURLOPT_POST is set to true to change the request method to POST.
• CURLOPT_POSTFIELDS is an associative array or preformatted query string to be
used as the data for the request body. Files can be uploaded by specifying a
value where the first character is @ and the remainder of the value is a filesystem
path to the file intended for upload.
H ere are a few other cURL configuration setting constants related to the request
method.
• CURLOPT_HTTPGET: Boolean that, when set to true, explicitly resets the request
method to GET if it’s been changed from the default.
• CURLOPT_NOBODY: Boolean that, when set to true, excludes the body from the
response by changing the request method to HEAD .