Send File via cURL from Form POST in PHP
When handling file uploads from a form POST in PHP, it's essential to understand how to utilize cURL to send the file. Form markup usually includes a file input field with enctype="multipart/form-data".
To send a file using cURL with a POST request, use the following approach:
- Retrieve the file path: Use $_FILES'image' to obtain the temporary file path on the server.
- Prepare the cURL parameters: Construct an array with the file details. E.g.:
$post = array(
'image' => '@' . $_FILES['image']['tmp_name']
);
-
Initialize cURL:
$ch = curl_init();
-
Set cURL options:
curl_setopt($ch, CURLOPT_URL, 'http://example.com/curl_receiver.php'); curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
-
Execute the request:
curl_exec($ch);
-
Close cURL:
curl_close($ch);
On the receiving end, a script like curl_receiver.php can receive the file:
if (isset($_FILES['image'])) {
move_uploaded_file($_FILES['image']['tmp_name'], 'uploads/'.$_FILES['image']['name']);
}
?>
Example:
Form:
<form action="script.php" method="post" enctype="multipart/form-data">
<input type="file" name="image" />
<input type="submit" name="upload" value="Upload" />
</form>
Script (script.php):
if (isset($_POST['upload'])) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'http://example.com/curl_receiver.php');
curl_setopt($ch, CURLOPT_POSTFIELDS, array(
'image' => '@' . $_FILES['image']['tmp_name']
));
curl_exec($ch);
curl_close($ch);
}
Receiver Script (curl_receiver.php):
if (isset($_FILES['image'])) {
move_uploaded_file($_FILES['image']['tmp_name'], 'uploads/'.$_FILES['image']['name']);
}The above is the detailed content of How to Send a File via cURL from a Form POST in PHP?. For more information, please follow other related articles on the PHP Chinese website!
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