username validation in php

The validation that is involved in this example is: User name: Length, character verification, repetitive Ajax validation (whether it already exists). Password: Length verification, repeat input password verification. Mail: Email address

This article mainly introduced the YII2 framework data validation operation, combined with the case form detailed analysis the YII framework common data validation operation principle, the realization method and the related operation skill, the need

yii2.0 to verify the user name and mailbox functionality, This article for everyone to share the yii2.0 implementation to verify the user name and mailbox functions related code, the details are as follows View signup.php Code: title = ' register ';

Many people in the development of the site is often only through simple JS verification, when you accidentally in the JS more than a comma or the number of points, IE6 can not recognize the direct skip verification. In fact, the safest way to do

Jquery. Validation is an excellent jquery plug-in that validates client forms and provides a number of customizable properties and methods for good scalability. Now combined with the actual situation, I will often use the validation of the project

PHP VERSION = 5.3.10First, about $_requestPHP documentation Instructions for $_request:describes an array that contains $_get,$_post and $_cookie by default. Update log version description 5.3. 0 introduce Request_order. This directive

1. Form ValidationFor all data entered by the user, you cannot trust it and must be verified.All frameworks are so, for yii you can use functionsyii\base\model::validate () for verificationHe will return a Boolean value of True/falseIf validation

When generating a form from a form widget at the view level, field can only exist in the database, for example: use yii\helpers\html; Use Yii\widgets\activeform; Use Yii\captcha\captcha; ' Sign-form ', ' Options ' =>[' action ' = '

is a good plug-in, it can verify the client form, and provides a number of customizable properties and methods, good scalability. This article is to understand the application of validation by explaining this example. The validation that is

See figure below: Example of validation: http://www.position-relative.net/creation/formValidator/ Official address: http://www.position-absolute.com/articles/jquery-form-validator-because-form-validation-is-a-mess/ This plugin supports most