IF elseif else usage

Question

So, now I've been trying to learn If, elseif and else statements properly. And I'm doing something wrong.

A guy told me his website would email specific people based on what zipcode they put in the contact form on his site. I was wondering how he did it, so I tried to recreate something similar.

Here is what I've done:

1. I created a file called zipcodes.php

2. In this file it has set every zipcode to a variable. For instance:

<?php
$Nashville=("37010" or "37027" or "37040" or "37055" or "37152");
?>

3. I created a form with a field called 'zip'.

4. I created a php file called phpmail.php to send this form.

5. Right now, the top of this file looks like this:

<?php
include("zipcodes.php");
$zip=$_POST["zip"];
//NASHVILLE//
if ($zip==$Nashville)
 $my_email = "email1@mysite.com";
 //Knoxville//
 if ($zip==$Knoxville)
 $my_email = "email2@mysite.com";
 //Huntsville//
 if ($zip==$Huntsville)
 $my_email = "email3@mysite.com";
...etc.

This doesn't work. It sends them all to the last option which is texas or email15@mysite.com

Before I had the first if set to if and all the others set to elseif

But that didn't work. It sent all the emails to Nashville email I made.

If statements must work though in this way. Because if I have this:

if ($zip==$Nashville)
 $my_email = "email1@mysite.com";
     //Anything Else//
  else $my_email = "hippityhoppity@live.com";

It works. Meaning if a zipcode is in Nashville it goes to one email - and if it isn't in Nashville - it goes to hippityhoppity.

Am I not getting something about all of this? Thanks!

Anonymous · Accepted Answer

Arrays are useful in these type of situations:

$nashville = Array("37010","37027","37040","37055","37152");

$knoxville = Array("32010","32027","32040","32055","32152");

$huntsville = Array("47010","47027","47040","47055","47152");

if(in_array($zip, $nashville)) {

$my_email = "......";

} elseif(in_array($zip, $knoxville) {

$my_email = "......";

} else {

$my_email = "....";

But if you have a lot of locations and zip codes to compare, I would suggest you to use a database like MySQL.

Drymetal · Answer

Using the brackets doesn't work either. All of this goes to the first email. It doesn't make sense. This is exactly what this php book says needs to be done.

<?php
include("zipcodes.php");
$zip=$_POST["zip"];
if ($zip==$Nashville){
 $my_email = "nashville@mysite.com";
} elseif ($zip==$Knoxville){
 $my_email = "knoxville@mysite.com";
} elseif ($zip==$Huntsville){
 $my_email = "huntsville@mysite.com";
} elseif ($zip==$Florida){
 $my_email = "florida@mysite.com";
} elseif ($zip==$Georgia){
 $my_email = "georgia@mysite.com";
} elseif ($zip==$SouthCarolina){
 $my_email = "scarolina@mysite.com";
} elseif ($zip==$NorthCarolina){
 $my_email = "ncarolina@mysite.com";
} elseif ($zip==$Pennsylvania){
 $my_email = "penn@mysite.com";
} elseif ($zip==$Maryland){
 $my_email = "maryland@mysite.com";
} elseif ($zip==$Virginia){
 $my_email = "virginia@mysite.com";
} elseif ($zip==$Texas){
 $my_email = "texas@mysite.com";
} else { $my_email = "hippityhoppity43204@live.com";
}

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