Description:
Returns the string true if all parameters are equal to true (not case sensitive), otherwise the string false.
Syntax:
Two to n parameters: Boolean values to be linked with the Boolean AND
Example:
<operation name="boolean_and">..<constant>truE</constant>..<constant>True</constant>..<constant>TRUE</constant></operation>
Return value:
trueAs soon as a value is found that is not true, false is returned. Any subsequent values are not checked. If no value can be determined for one of the parameters checked, nothing is returned.