Home > php教程 > php手册 > PHP正则表达式:匹配特定数字

PHP正则表达式:匹配特定数字

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB
Release: 2016-06-13 10:39:39
Original
1355 people have browsed it

PHP正则表达式:匹配特定数字,常用介绍,希望对大家有所收获。
^[1-9]d*$      //匹配正整数
^-[1-9]d*$      //匹配负整数
^-?[1-9]d*$    //匹配整数
^[1-9]d*|0$     //匹配非负整数(正整数 0)
^-[1-9]d*|0$   //匹配非正整数(负整数 0)
^[1-9]d*.d*|0.d*[1-9]d*$    //匹配正浮点数
^-([1-9]d*.d*|0.d*[1-9]d*)$  //匹配负浮点数
^-?([1-9]d*.d*|0.d*[1-9]d*|0?.0 |0)$    //匹配浮点数
^[1-9]d*.d*|0.d*[1-9]d*|0?.0 |0$       //匹配非负浮点数(正浮点数 0)
^(-([1-9]d*.d*|0.d*[1-9]d*))|0?.0 |0$  //匹配非正浮点数(负浮点数 0)

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Issues
php data acquisition?
From 1970-01-01 08:00:00
0
0
0
PHP extension intl
From 1970-01-01 08:00:00
0
0
0
How to learn php well
From 1970-01-01 08:00:00
0
0
0
Popular Recommendations
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template