匹配字符串与preg_match [关闭]

I have the following string formats: "$ 3.20" or "$ 10.34". I want to verify with preg_match if the string is exactly this type of a format.

Any suggestions are appreciated?

Try this pattern:

if (preg_match('/\$\s[\d]+\.[\d]{2}/', $text)){
    //do something
}