First check that it’s not empty, then typecast to a string value as a security precaution, because it’s always possible for this to be submitted as an array; e.g., by an attacker. Then unslash, sanitize, and continue by checking length and anything else that you’d like to validate. if ( ! empty( $_POST[‘contact_msg’] ) ){ … Read more
<?php /* Template Name: Contact-Page-with-upload * * A Custom PHP Contact us page. Add or change form fields on line 28 and in the form itself. * Jquery is used to add/remove Bootstrap has-error class to invalid fields. */ /** * Get Error Class * * @return string; */ $response=””; function getErrorClass($failedKeys, $key) { if(isset($failedKeys) … Read more
@Magecode, you won’t be able to use that javascript library, however, you CAN use Jquery Validation for Contact Form 7, instead. That should do exactly what you need. š
Data Validation & Sanitization for Big HTML Blocks
how to add security questions on wp-registration page and validate it
I found this solution: $.validator.setDefaults({ highlight: function (element, errorClass, validClass) { $(element).addClass(‘is-invalid’); }, unhighlight: function (element, errorClass, validClass) { $(element).removeClass(‘is-invalid’); } }); This is my previous personal solution: signup_form.on( ‘change submit’, function( e ) { $( ‘.error’ ).removeClass( ‘is-valid’ ).addClass( ‘is-invalid’ ); $( ‘.valid’ ).removeClass( ‘is-invalid’ ).addClass( ‘is-valid’ ); } ); Which is better?
I donĀ“t know if checkboxes need sanitze or validateā¦ Yes, you should sanitize. Otherwise, malicious users or codes could modify values into your database. Take a look into sanitize_option documentation. Validation is up to you. If options must be checked for some reason (e.g.: at least 2 options checked), you should validate it and provide … Read more
Using built-in validation pop-up for custom fields
How to use third-party SendGrid Email Validation API in Gravity Forms?
You can probably do this by customizing the feed: https://codex.wordpress.org/Customizing_Feeds This way you can make your own template for a feed, and alter the pubDate to your needs.