Home

PHP Libraries

Other libraries

PHP data validation library

Other libraries

Get it now

PHP data validation library

This is a form data validation class implemented through a piece of PHP code. It is a very easy-to-use and convenient form data validation class

<?php
//验证类
class Fun{
     
  function isEmpty($val)
  {
    if (!is_string($val)) return false; //是否是字符串类型   
    if (empty($val)) return false; //是否已设定   
    if ($val=='') return false; //是否为空
    return true;       
  }

Disclaimer

All resources on this site are contributed by netizens or reprinted by major download sites. Please check the integrity of the software yourself! All resources on this site are for learning reference only. Please do not use them for commercial purposes. Otherwise, you will be responsible for all consequences! If there is any infringement, please contact us to delete it. Contact information: admin@php.cn

Which PHP Library Best Fits Your Email Address Validation Needs?

18 Nov 2024

PHP Email Address Validation Libraries UncoveredEmail address validation plays a crucial role in data validation, but creating a...

[Data Validation Class Library] Share 10 useful PHP data validation classes

06 Jun 2017

When friends learn the PHP language, they will definitely pay attention to security issues in the actual development process. So, today we will introduce to you the primary measure to ensure PHP security-verification data. Validation of data is the most important habit you can adopt. And when it comes to input, it's very simple: don't trust the user.

Data validation library in PHP8.0: Respect

14 May 2023

With the popularity of the PHP language and the expansion of its application scope, data verification has become more and more important. Data validation is an important link in a web application, responsible for verifying and filtering user-submitted data and ensuring its integrity and validity. Without a strong data validation system to ensure data security and reliability, a simple input error can lead to catastrophic consequences. In PHP8.0, Respect is a good solution. What is Respect? Respect is a lightweight

Looking for a php/python library management program (similar to Baidu library, managing doc/pdf and other libraries)

30 Sep 2016

Looking for a php/python library management program (similar to Baidu library, managing doc/pdf and other libraries)~~ It mainly needs to have search functions, especially file classification retrieval/file tag retrieval functions, no need for online conversion, online browsing!

Integration of PHP function library and third-party library

22 Apr 2024

Function libraries and third-party libraries in PHP can extend the functionality of applications. The function library provides predefined functions that can be included through the include statement. Third-party libraries are available from sources such as Packagist, GitHub, and installed using Composer. Implement automatic loading of classes through autoloaders, such as automatic loading of the Guzzle library. Learn how to use the Dompdf third-party library to generate PDF files through practical cases, including loading the library, loading HTML content, and outputting PDF files. The integration of function libraries and third-party libraries greatly expands the functionality of PHP applications and improves development efficiency and project performance.

How to write a PHP function library?

17 Apr 2024

The steps for writing a function library in PHP are as follows: Create a PHP file (such as myFunctions.php) to store the functions. Use the function keyword to define functions in a file. Include libraries in other scripts using require_once or include_once statements. Once a function library is included, its functions can be used.

See all articles