Hide content based on URL string (PHP)

Question

I've signed up to one of those affiliate sites to help drive traffic to my online store. They've asked that I hide the telephone number on my site for referring traffic.

All traffic that they refer will append any of my site urls with something like '?affiliate'.

Does anyone know how I can hide content on a page if a URL contains '?affiliate' but show it if the URL does not contain this text?

I'm using the Magento system, in case that makes a difference. :D

Thanks, Neil

Artefacto · Accepted Answer · 2010-07-08 09:20:13Z

6

if (!array_key_exists('affiliate', $_GET)) {
    //show telephone number
}

empty will fail here because the value of $_GET['affiliate'] will be "".

answered Jul 8, 2010 at 9:20

Artefacto

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2 Comments

doubleplusgood Over a year ago

Hey, I've tried using this as follows. But it always shows the number. I need it to show the number by default, unless the url contains affiliate. if (!array_key_exists('affiliate', $_GET)) { echo "<p>020 XXXXXX</p>"; }

Artefacto Over a year ago

@Neil WHat you did was correct. Maybe the query string is malformed, e.g. the url already contained a query string and the affiliate added "?affiliate" instead of "&affiliate"?

Martin Bean · Accepted Answer · 2010-07-08 09:20:23Z

1

<?php
if (isset($_GET['affiliate'])) {
    // don't show
}
else {
    // show telephone number
}
?>

answered Jul 8, 2010 at 9:20

Martin Bean

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Comments

Sarfraz · Accepted Answer · 2010-07-08 09:20:38Z

1

Try something like:

if (isset($_GET['affiliate']))
{
  // hide the content now
}

answered Jul 8, 2010 at 9:20

Sarfraz

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4 Comments

Pekka Over a year ago

I think this will fail: The manual on isset() says "Determine if a variable is set and is not NULL." affiliate will be null in this case.

Artefacto Over a year ago

@Pekka I was actually wrong there. It will be "". This is also correct.

Pekka Over a year ago

@Artefacto you're right, isset() indeed works. I stand corrected!

Artefacto Over a year ago

@Pekka I actually was induced in error with a phpinfo page, which showed "no value", which I assumed mean NULL.

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