JForm::validateField

Method to validate a JFormField object based on field data.

Signature

protected function validateField(SimpleXMLElement
        $element,
            [JRegistry
        $group = null,
            [JRegistry
        $value = null,
            [JRegistry
        $input = null]]] )

Parameters

$element: The XML element object representation of the form field.
$group: The optional dot-separated form group path on which to find the field.
$value: The optional value to use as the default for the field.
$input: An optional JRegistry object with the entire data set to validate

Returns

mixed: Boolean true if field value is valid, Exception on failure.

Errors/Exceptions

InvalidArgumentException
UnexpectedValueException