PHP 正则表达式 url 匹配

Question

I have some example:

mysite.com/tag/HD+Wallpaper           //match
mysite.com/tag/HD+Wallpaper/          //match
mysite.com/tag/HD+Wallpaper?page=     //match
mysite.com/tag/HD+Wallpaper/?page=    //match
  
mysite.com/tag/HD+Wallpaper/sdadasdas    //not match

with "HD+Wallpaper" is a param

i try:

^tag/(.+?)(|\/|\?(.*?))$i

How can i fix it? TY

Answer 1

You could try following regex

tag\/.*?(?=\/|\?|$)

Demo

Note: In the demo, I added backslash \ to escape /

Answer 2

This regex should work for you:

tag\/([^\/]*?)(?=\/$|\/\?|\?|$)

Demo

Answer 3

You might use

tag/[^/\s]+(?:/(?:\?.*)?)?$

Explanation

• tag/ Match literally (perhaps /tag/ or \btag would be more specific)
• [^/\s]+ Match 1+ occurrences of any char except / or a whitespace char
• (?: Non capture group
  • /(?:\?.*)? Match / followed by an optional part to match ? and the rest of the string
• )? Close group and make it optional
• $ End of string

Regex demo