Hey everyone,

I've been working on a web development project and I'm currently facing an issue with validating a number using regular expressions in PHP. I need to check whether a given number consists of exactly 5 digits.

I tried searching online for a solution but couldn't find anything specific to my needs. I know regular expressions can be a powerful tool for pattern matching, but I'm not very familiar with them.

Can someone please help me with the PHP regular expression code to achieve this? I want to make sure that the number includes only 5 digits and nothing else.

Any assistance would be greatly appreciated. Thank you!

Hey there!

I recently had a similar requirement in one of my PHP projects, so I can definitely help you out with this. To check whether a number consists of exactly 5 digits, you can use the following regular expression in PHP:

In the above code, we define the regular expression pattern `"/^\d{5}$/"`, where:

- `^` specifies the start of the string,

- `\d` matches any digit,

- `{5}` specifies that we want exactly 5 digits,

- `$` specifies the end of the string.

By using the `preg_match()` function, we can check if our number matches this pattern.

I hope this helps! Let me know if you have any more questions or need further assistance.