What is the best practice for uploading multiple images in a PHP form?

When uploading multiple images in a PHP form, it is best practice to use an array for the file input field name in the HTML form. This allows you to handle multiple file uploads in a more organized and efficient manner in your PHP script. You can then loop through the array of files in your PHP script to process each uploaded image individually. 

<form action="upload.php" method="post" enctype="multipart/form-data">
    <input type="file" name="images[]" multiple>
    <input type="submit" value="Upload">
</form>

<?php
if(isset($_FILES['images'])){
    $images = $_FILES['images'];
    
    foreach($images['tmp_name'] as $key => $tmp_name){
        $file_name = $images['name'][$key];
        $file_tmp = $tmp_name;
        $file_type = $images['type'][$key];
        
        // Process each uploaded image here
    }
}
?>

Keywords

file upload multiple images PHP form image processing validation

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