What resources or documentation can be helpful in understanding file uploads in PHP?

When working with file uploads in PHP, it is important to understand how to properly handle and process uploaded files. Resources such as the PHP documentation on file uploads, tutorials on handling file uploads securely, and examples of file upload scripts can be helpful in gaining a better understanding of this topic. 

<?php
// Check if the file was uploaded without errors
if ($_FILES['file']['error'] == UPLOAD_ERR_OK) {
    $uploadDir = 'uploads/';
    $uploadFile = $uploadDir . basename($_FILES['file']['name']);

    // Move the uploaded file to the specified directory
    if (move_uploaded_file($_FILES['file']['tmp_name'], $uploadFile)) {
        echo "File is valid, and was successfully uploaded.";
    } else {
        echo "Upload failed.";
    }
} else {
    echo "Error uploading file.";
}
?>

Keywords

PHP file uploads documentation resources functions

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