What are the potential error codes in the $_FILES variable that should be considered?

When handling file uploads in PHP, it's important to consider potential error codes that can occur in the $_FILES variable. Some common error codes include UPLOAD_ERR_INI_SIZE, UPLOAD_ERR_FORM_SIZE, UPLOAD_ERR_PARTIAL, UPLOAD_ERR_NO_FILE, UPLOAD_ERR_NO_TMP_DIR, and UPLOAD_ERR_CANT_WRITE. These errors can occur due to various reasons such as file size limitations, temporary directory issues, or file permissions problems. 

if ($_FILES['file']['error'] === UPLOAD_ERR_INI_SIZE) {
    echo "The uploaded file exceeds the upload_max_filesize directive in php.ini";
    // Handle the error accordingly
}

Keywords

$_FILES error codes file upload PHP validation

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