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This article is about how thinkphp determines whether a variable is a number. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

Methods: 1. Use "protected variable =array(array ('your_variable','number',' variable is number'),)" to judge;2. Use "is_numeric(variable);preg_match ('/^\\d+$/', variable)" to judge.

Operating environment: Windows 10 system, ThinkPHP5 version, Dell G3 computer.

How to determine if a variable is a number

1. If you want to use automatic validation of the model, add:

protected $_validate = array( array ('your_variable','number',' variable should be pure number! '), );

2. If you verify yourself, you can use functions or regular expressions.

is_numeric($your_variable);preg_match ('/^\\d+$/',$your_variable); Thank you for reading! About "thinkphp how to judge whether the variable is a number" this article is shared here, I hope the above content can be of some help to everyone, so that everyone can learn more knowledge, if you think the article is good, you can share it to let more people see it!

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