In what ways can JavaScript and PHP interact in processing file upload requests in FCKeditor?

JavaScript can be used to handle the file upload request in FCKeditor by sending an AJAX request to a PHP script that processes the file upload. The PHP script can then handle the file upload, validate the file, and save it to the server. This interaction allows for a seamless file upload process within FCKeditor. 

<?php

if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_FILES['upload'])) {
    $file = $_FILES['upload'];
    
    if ($file['error'] === UPLOAD_ERR_OK) {
        $uploadDir = 'uploads/';
        $uploadPath = $uploadDir . $file['name'];
        
        if (move_uploaded_file($file['tmp_name'], $uploadPath)) {
            echo json_encode(['url' => '/' . $uploadPath]);
        } else {
            echo json_encode(['error' => 'Failed to move file']);
        }
    } else {
        echo json_encode(['error' => 'File upload error']);
    }
} else {
    echo json_encode(['error' => 'Invalid request']);
}

?>

Keywords

JavaScript PHP file upload FCKeditor interaction

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