PHP FILTER_SANITIZE_NUMBER_INT 过滤器
PHP 教程
· 2019-01-25 21:14:21
定义和用法
FILTER_SANITIZE_NUMBER_INT 过滤器删除数字中所有非法的字符。
该过滤器允许所有数字以及 . + -
- Name: "number_int"
- ID-number: 519
实例
<?php $number="5-2+3pp"; var_dump(filter_var($number, FILTER_SANITIZE_NUMBER_INT)); ?>
代码的输出如下所示:
string(5) "5-2+3"
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