Error: Undefined Variable

Question

Does anyone know how i can fix this error.

Undefined variable: email in C:\wamp\www\Root\siginuppage.php on line 57

if (!preg_match(
        "/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$/i"
        , $email
)) {

I am trying to set up an email verification form but this error occurs before any data is inputted. The undefined variable is email i can assume but how exactly do i define it??

$email = "$email"  along with $username="" and $password=""    perhaps  ?????

I am ridiculously new to this so a simple answer would be very much appreciated.

don't use regular expression for validating email, use [filters](http://php.net/manual/en/filter.filters.validate.php) — , Oct 29 '12 at 18:35
Some help on validating email in PHP: http://stackoverflow.com/questions/5855811/how-to-validate-an-email-in-php/5855853#5855853 — kapa, Oct 29 '12 at 18:38

score 0 · Accepted Answer · answered Oct 29 '12 at 18:35

0

To start with, variables in php are represented by prefixing a $ sign. So to define a variable $email, you need to do something like this,

 $email = "xyz@pqr.com"; //test email

answered Oct 29 '12 at 18:35

Teena Thomas

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"`$` is for variables"? What is that in reference to? – newfurniturey Oct 29 '12 at 18:36
I edited my answer to make it more clear. – Teena Thomas Oct 29 '12 at 18:39
tanx coder that helps a lot - just one more quick question does that definition mean that the email has to go in the format letters(any amount) @ letters(any amount) followed by .com(exact) ? – Daniel o keeffe Oct 29 '12 at 18:42
this might help http://en.wikipedia.org/wiki/Email_address – Teena Thomas Oct 29 '12 at 18:44

Error: Undefined Variable

1 Answers1