Tag Archives: validate
How to validate a telephone number
This snippet is useful if you need to validate a telephone number using an editable list with specific formats.
Read moreCheck (validate) if the uploaded file is an image
This script checks if the uploaded file (via a form) is actually an image. You can choose between 2 validators: one that will check if the file is actually an image and the other one which checks the extension of the uploaded file.
Read moreValidating an image upload
This is a useful JavaScript function which validates an image upload by checking the extension of the file that should be uploaded. If the extension is jpg, jpeg, png or gif it will return true. Otherwise, it will return false.
Read moreA simple AJAX (JQuery) Contact Form with PHP Validation
The aim of this tutorial is to help you to create a simple (tableless) contact form using JQuery and AJAX. We will have a HTML page which will contain the form, a CSS file, a php page where the data will be sent and another file where the validation function(s) will be located.
Read moreValidate (input) password
This is a useful function if you need to validate a password (input). If you have a form and you need to check if the username, which is registering, entered a valid password (without illegal characters) then this would help you to do it. Only letters, numbers and underscores are accepted.
Read moreValidate (input) username
Here’s a function that validates a username. It can be used when you have a register form and the user should enter a valid username (that shouldn’t contain illegal characters).
Read moreE-Mail Address Validator
This function checks if an email address is valid or not. For example it is very useful if you have to validate a html form where someone should enter a real email address.
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