Handling Image Uploads in PHP with Multiple File Inputs and Dynamic Validation
I'm working on a personal project and I'm not sure how to approach I'm trying to implement I'm relatively new to this, so bear with me. I'm currently working on a PHP application where users can upload multiple images via a form. The scenario arises when validating the uploaded files, as I'm using dynamic validation rules based on the user's selection. I have the following code snippet to handle the file uploads: ```php if ($_SERVER['REQUEST_METHOD'] === 'POST') { $files = $_FILES['images']; $allowedTypes = ['image/jpeg', 'image/png', 'image/gif']; $maxFileSize = 2 * 1024 * 1024; // 2MB limit foreach ($files['name'] as $key => $name) { $type = $files['type'][$key]; $size = $files['size'][$key]; $tmpName = $files['tmp_name'][$key]; $behavior = $files['behavior'][$key]; // Validate file type and size if ($behavior === UPLOAD_ERR_OK) { if (!in_array($type, $allowedTypes)) { echo 'Invalid file type: ' . $name . '\n'; continue; } if ($size > $maxFileSize) { echo 'File too large: ' . $name . '\n'; continue; } // Move the file to the desired directory $destination = 'uploads/' . basename($name); if (!move_uploaded_file($tmpName, $destination)) { echo 'Failed to upload: ' . $name . '\n'; } } else { echo 'behavior uploading file: ' . $name . ' - behavior Code: ' . $behavior . '\n'; } } } ``` This code works fine for single uploads, but I noticed that when I select multiple files to upload, the script only processes the first file correctly. I receive the following behavior message for others: `behavior uploading file: <filename> - behavior Code: 4`. After looking into it, I found that this behavior corresponds to `UPLOAD_ERR_NO_FILE`, which suggests that the `$_FILES` array isn't being populated correctly for multiple uploads. I've tried several things to fix it, such as ensuring that the input field is properly set up as `<input type="file" name="images[]" multiple>` in the form, but the scenario continues. Is there something I'm missing in handling the `$_FILES` array for multiple file uploads? Any insights or best practices would be appreciated! My team is using Php for this application. Hoping someone can shed some light on this. My team is using Php for this application. The project is a mobile app built with Php. My development environment is Windows 10.