方法:1、用“protected 变量=array(array('your_variable','number','变量为数字'),)”判断;2、用“is_numeric(变量);preg_match('/^\\d+$/',变量)”判断。
本文操作环境:Windows10系统、ThinkPHP5 版、Dell G3电脑。
thinkphp怎么判断变量是否为数字
1、如果要用模型的自动验证,在模型中添加:
protected $_validate = array( array('your_variable','number','变量应为纯数字!'), );
2、如果自行验证,可以用函数或正则表达式
is_numeric($your_variable); preg_match('/^\\d+$/',$your_variable);
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