PHP Array to return a URL - php

Question

I am trying to return a specific iframe URL depending ont he input of a specific number of zip codes.
Example- zip code x returns url x
zip code y returns url y
I have a list of several zip codes per URL. The URL purpose is to redirect to a specific (3rd party) page based on the location input from the user.
Here is what I have so far:
<?php
$userzip = $_POST['ZipCode'];
echo $userzip;
$array = array(
'22942' => 'URL1',
'22701' => 'URL2');
// print_r($array);
foreach( $array as $key => $value ){
// echo "Output of Key=>Value pair:\r\n";
// echo $key . "->" . $value . "\r\n";
// echo "Testing $key...\r\n\r\n";
if(preg_match('/23456/',$key)){
echo "Service exists in: $value\r\n";
break;
} else {
echo "No Match for $key.\r\n\r\n";
}
}
?>
So, my first mistake is that only the zip code entered is returned for the moment. I can comment that out but left it in to show my thinking. Help?

Answer 1

If I have understood your request correctly then this code should work:
<?php
$userzip = $_POST['ZipCode'];
echo $userzip;
$array = array(
'22942' => 'URL1',
'22701' => 'URL2');
// print_r($array);
foreach( $array as $key => $value ){
// echo "Output of Key=>Value pair:\r\n";
// echo $key . "->" . $value . "\r\n";
// echo "Testing $key...\r\n\r\n";
if(strstr($key, $userzip)) {
echo "Service exists in: $value\r\n";
break;
} else {
echo "No Match for $key.\r\n\r\n";
}
}
?>
To actually handle the redirect then after echo "Service exists in: $value\r\n"; you can use one of these options:
header("Location: " . $value);
Or if you want to use the iFrame approach you have mentioned in the comment then:
echo '<iframe src="'.$value.'" border="0" frameborder="0" style="width:500px; height:700px;"></iframe>';

Answer 2

You should try to avoid loops as much as possible. You can easily check if a key/value exists in an array with isset:
$userzip = $_POST['ZipCode'];
echo $userzip;
if( isset($zipcodesA[$userzip]) ){
echo "Service exists in A: ".$array[$userzip]."\n";
} elseif( isset($zipcodesB[$userzip]) ){
echo "Service exists in B: ".$array[$userzip]."\n";
}elseif( isset($zipcodesC[$userzip]) ){
echo "Service exists in C: ".$array[$userzip]."\n";
} else {
echo "No Match for $userzip.\n\n";
}
In this case, you have no need to check every value in the array, just if one specific exists.