Shulou(Shulou.com)06/01 Report--

This article mainly introduces the function of judging variables in PHP, which has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

Judgment variable

Is_bool: determine whether it is a Boolean type

Is_float: judging floating point type

Is_integer: judging integers

Is_object: judge the object

Is_array: decision array

Is_string: judging string

Is_resource: judging resources

Is_scalar:scalar is scalar, and judgment is the basic data type: integer, floating-point, Boolean and string

Is_null: whether it is empty

Is_numeric: judge a string of numbers or pure numbers

Gettype: get the data type

Settype: changing data types

What is the framework of php? php framework: 1. Laravel,Laravel is a free and open source PHP application framework. 2. Phalcon,Phalcon is the fastest PHP framework. 3. Symfony,Symfony is a PHP framework for Web projects. 4. Yii,Yii is a fast, secure and professional PHP framework. CodeIgniter,CodeIgniter is a very agile open source PHP framework. 6. CakePHP,CakePHP is an old PHP framework. 7. Kohana recorder Kohana is an agile but powerful PHP framework.

Thank you for reading this article carefully. I hope the article "what are the functions of judging variables in PHP" shared by the editor will be helpful to you. At the same time, I also hope you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.