[SOLVED] finding a certain character in a sentence

[gevo12321]

ok lets say i get a sentence through $_post

and i want to see if a certain character apperas in the sentence. how would i do it?

[fanfavorite]

check out http://ca.php.net/strpos

[gevo12321]

one more thing, im doing this for a contact page to make sure that the email address thy give is a valid one and has the @ char in it. i was wondering if it would be better if i did it browserside in javascript rather than serverside in php

[elis]

Try this:

 

if(!eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $email)
{echo "this email is invalid"; })

 

Checks for both the presence of an @ sign, a period, and that no odd characters are present in the email.

Replace "$email" for whatever the variable for the email input is.

[gevo12321]

thank you