PHP FILTER_VALIDATE_FLOAT 过滤器
PHP 教程
· 2019-01-25 22:44:16
定义和用法
FILTER_VALIDATE_FLOAT 过滤器把值作为浮点数来验证。
- Name: "float"
- ID-number: 259
实例
<?php $var=12.3; var_dump(filter_var($var, FILTER_VALIDATE_FLOAT)); ?>
代码的输出如下所示：
float(12.3)
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