Remove numbers from words and work with the numbers

[webandwe]

Hi.

Say I have the following id. webandwe13

Is there I way I can remove the 13 to work with it and add it back when I'm done.

I have a profile program and when the user upload I want to increase the number but don't know how to remove the number to work with it.

Is it even possible?

Thanks

Webandwe

[Dormilich]

there are various ways. you can for instance use a Regular Expression to remove and get number as well as cutting it off with string functions (if there are length constraints on either the number or the letter part).

adding the number is easy:
[PHP]$your_string = $letter_part . $number;[/PHP]

regards

[Markus]

Why not do yourself a favour and store the number in a database. Takes away the hassle of regular expressions *shiver*.

[samatair]

Using the basic's of PHP and some string functions, we can do this (I am not sure, this is the best efficent way) This would work fine with integers.
If the number involves decimals don't use this script it would not work consistently (e.g 1.1 would work but 0.1 will not)
If you understand the snippet, you will understand why?

<?php
	$str = 'webandwe13';
	$number = strrev(strrev($str) + 0); //extracting the number
	$new_number = $number + 1; // increment the number by one
	$str = str_replace($number, $new_number, $str); // replacing  with the old number
	echo $str;
?>

Output: webandwe14

[r035198x]

Why not do yourself a favour and store the number in a database. Takes away the hassle of regular expressions *shiver*.

That is the approach I would use. See this thread for a similar discussion.