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I'm trying to get a regular expression that allows between 6 - 15 characters and can be a-zA-Z0-9 and the symbols above the numbers 1-8 on a keyboard.
Here's what I have but it doesn't work.
'/^[a-zA-Z0-9-_][\!\@\#\$\%\^&\*]{5,16}+$/'
267
For checking if a string consists only of alphanumerics using module regular expression or regex, we can call the re. match(regex, string) using the regex: "^[a-zA-Z0-9]+$".
The \b metacharacter matches at the beginning or end of a word.
To match a character having special meaning in regex, you need to use a escape sequence prefix with a backslash ( \ ). E.g., \. matches "." ; regex \+ matches "+" ; and regex \( matches "(" . You also need to use regex \\ to match "\" (back-slash).
you have two different sets within brackets. Basically the expression says "1 of a-zA-Z0-9-_" followed by 5-16 of special characters. Combine them into the same set of brackets and you're all good.
Something like the following:
'/^[a-zA-Z0-9-_\!\@\#\$\%\^&\*]{5,16}$/'
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