Question

I have a text field in which user can enter any character he/she wants. But in server i have a string patter [a-z0-9][a-z0-9+.-]*, if any of the character in the value from the text box doesn’t match the pattern, then i must remove that character from that string. How can i do that in php. is there any functions for that?

Thanks in advance.
Gowri Sankar

Answer 1

.. in PHP we use regular Expressions with preg_replace.
Here you have some help with examples…
http://www.addedbytes.com/cheat-sheets/regular-expressions-cheat-sheet/

this is what you need:

$new_text = preg_replace(‘#[^A-Za-z+.-0-9]#s’,”,$text);