Rules

Description	Usage
alpha	Must contain alphabetic data only.
alpha_space	Must contain alphabetic data and allow spaces.
alphanumeric	Must contain alphabetic or numeric characters only.
alphanumeric_space	Must contain alphabetic or numeric characters and allow spaces.
date	Must contain date in YYYY-XX-XX or XX-XX-YYYY format.
email	Must contain a valid email address.
equal=xxx sameas=xxx	Compare two elements in the form and make sure the values are the same. For example, ‘password’ and ‘confirm password’. Replace the xxx with the name of the other input element. For example: equal=confirm_pwd
greaterthan=xxx gt=xxx	Verify the data to be greater than the value passed. Valid only for numeric fields. example: if the value should be greater than 10 give validation description as “greaterthan=10”
lessthan=xxx lt=xxx	Verify the data to be less than the value passed. Valid only for numeric fields. example: if the value should be less than 1000 give validation description as “lesstthan=1000”
maxlen=xxx maxlength=xxx	Checks the length entered data to the maximum. For example, if the maximum size permitted is 25, give the validation descriptor as “maxlen=25”
minlen=xxx minlength=xxx	Checks the length of the entered string to the required minimum. example “minlen=5”
notequal=xxx notsameas=xxx	Compare two elements in the form and make sure the values are not the same. For example, ‘password’ and ‘confirm password’. Replace the xxx with the name of the other input element. For example: notequal=confirm_pwd
nourl	Check the data and make sure there are no URLs.
number numeric num	Check for numeric data only.
postalcode	Check for Canadian Postal Code.
regexp=xxx	Check with a regular expression the value should match the regular expression. example: “regexp=^[A-Za-z]{1,20}$” allow up to 20 alphabetic characters.
required req mandatory	The field should not be empty
select selone selectmandatory	Makes a radio group mandatory. The user should select at least one item from the radio group.
selectdont=xx	This validation descriptor is for select input items (lists). Normally, the select list boxes will have one item saying ‘Select One’. The user should select an option other than this option. If the value of this option is ‘- Choose -’, the validation description should be “dontselect=- Choose -”
selmin=xx	Select at least n number of check boxes from a check box group. For example: selmin=3
tel	Check for a telephone number with 7, 10 or 11 digits.
url	Check the data and make sure it is a URL.
zip	Check for US Zip Code with a length of 5 or 5 plus 4.