valid()
Manually validate field value.
bool valid( string handle, string field, mixed valid )Return
Returns TRUE if field contains valid value.
Parameter
Description
handleHandle name to address form.
fieldName of input control.
validRegular Expression or TRUE/FALSE (see examples below)
Validate letters and numbers
$FORM->valid("testform", "testabc", "/[a-zA-Z0-9_\-]/")RETURN: TRUE
Validate numbers
$FORM->valid("testform", "test123", "/[0-9]/")RETURN: TRUE
Validate anything but numbers I
$FORM->valid("testform", "test123", "/[^0-9]/")RETURN: FALSE
Validate anything but numbers II
$FORM->valid("testform", "testabc", "/[^0-9]/")RETURN: TRUE
Validation by BOOL value
$FORM->valid("testform", "test123", 1 == 2)RETURN: FALSE
