How many errors can be possible in $_FILES[file][error]?

The $_FILES[file][error] variable can have 8 possible error values in PHP, which indicate different types of errors that may have occurred during file upload. To handle these errors effectively, you can use a switch statement to check the value of $_FILES[file][error] and take appropriate action based on the specific error code. 

switch ($_FILES['file']['error']) {
    case UPLOAD_ERR_OK:
        // No error, file uploaded successfully
        break;
    case UPLOAD_ERR_INI_SIZE:
        // Exceeded the upload_max_filesize directive in php.ini
        break;
    case UPLOAD_ERR_FORM_SIZE:
        // Exceeded the MAX_FILE_SIZE directive that was specified in the HTML form
        break;
    case UPLOAD_ERR_PARTIAL:
        // The uploaded file was only partially uploaded
        break;
    case UPLOAD_ERR_NO_FILE:
        // No file was uploaded
        break;
    case UPLOAD_ERR_NO_TMP_DIR:
        // Missing a temporary folder
        break;
    case UPLOAD_ERR_CANT_WRITE:
        // Failed to write file to disk
        break;
    case UPLOAD_ERR_EXTENSION:
        // A PHP extension stopped the file upload
        break;
    default:
        // Unknown error
        break;
}

Keywords

$_FILES file error PHP possible errors

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