If variable blank display nothing

[travist6983]

OK guys thanks for reading my post!

i am having a slight issue with a contact form and that is if someone doesnt fill in the phone number box then it just ads a blank space to the email that gets sent such as below:

This is filled out -
Name: Larry Boy
Phone: 703-922-4010
Email: larry@skbk.com

This is not filled out-
Name: Larry Boy

Email: larry@skbk.com

I am using this to figure out if it is actually blank or not:

Code: [Select]

if ($Tel == "")
$TelResults = "";
else
$TelResults = "Phone: ".$Tel;

and this to display it on the email

Code: [Select]

$Body .= $TelResults;

I understand this is VERY small thing but my boss hates getting contacts forms that "dont look right" i have scowered the net trying to figure this out so now i am turning to this forum for some help... Can someone please point me in the right directions...

[collegemike]

Larry,

You might try doing a regular expression to search for an email. Something like:

Code: [Select]

<?php

$form = "This is filled out -
Name: Larry Boy
Phone: 703-922-4010
Email: larry@skbk.com

This is not filled out-
Name: Larry Boy";
$regex = "/\w*\@\w*\.[[:alpha:]]{2,3}/i";

echo preg_match($regex, $form);
?>

This will print how many times an email address consisting of some_letters_or_numbers@somemore_letters_or_numbers.2_or_3_letters appears... in this case there is one match (larry@skbk.com)

Breakdown of regular expression pattern:
/ expression /i - denotes that string is a regular expression (trailing "i" means match any case)
\w - match any alphanumeric (A-Z or 0-9) character or underscore (_)
* - look for zero or more of this expression. For example \w* means look for zero or more alphanumeric characters
[[:alpha:]] - look only for alphabetic characters (no numbers)
{2,3} - look for 2 or 3 of this expression. For example [[:alpha:]]{2,3} means look for between 2 or 3 letters

If you need more help with regular expressions I'd check out http://php.net/manual/en/function.preg-match.php

-Mike

[collegemike]

Larry,

Just noticed I slightly misunderstood what you were asking. You can design a regular expression to match the telephone number instead, which will tell you if there exists a valid phone number in the email.

-Mike