Basic curl examples
Once you've compiled PHP with cURL support, you can begin using the cURL functions. The basic idea behind the cURL functions is that you initialize a cURL session using the curl_init, then you can set all your options for the transfer via the curl_setopt, then you can execute the session with the curl_exec.
Examples
Basic curl examples
Once you've compiled PHP with cURL support, you can begin using the cURL functions. The basic idea behind the cURL functions is that you initialize a cURL session using the curl_init(), then you can set all your options for the transfer via the curl_setopt(), then you can execute the session with the curl_exec().
Here is a simple example that uses the cURL functions to send a POST request:
Using PHP's cURL module to send a POST request
<?php
$data = ['foo' => 'bar', 'baz' => 48];
$url = "http://www.example.com/handler.php";
$ch = curl_init($url);
// tell CURL to return the response instead of sending it to stdout
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// set the POST data, corresponding method and headers
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
// send the request and get the response
$response = curl_exec($ch);
if(curl_error($ch)) {
// handle the error, or just
throw new RuntimeException(curl_error($ch));
}Another example that uses the cURL functions to send a raw JSON POST request:
Using PHP's cURL module to send a JSON POST request
<?php
$post_data = ['foo' => 'bar', 'baz' => 48];
$url = "http://www.example.com/api/endpoint";
$ch = curl_init($url);
// tell CURL to return the response instead of sending it to stdout
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// set the POST data and corresponding method
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($post_data));
// set the required header
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
// send the request and get the response
$response = curl_exec($ch);
if(curl_error($ch)) {
// handle the error, or just
throw new RuntimeException(curl_error($ch));
}Here is another example that uses the cURL functions to fetch the example.com homepage into a file:
Using PHP's cURL module to fetch the example.com homepage
<?php
$ch = curl_init("http://www.example.com/");
$fp = fopen("example_homepage.txt", "w");
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
if(curl_error($ch)) {
fwrite($fp, curl_error($ch));
}
fclose($fp);