Variable undefined when creating heredoc string

Question

I am using the EOF function in my php code.

But I have a problem.

When I try to call a variable from another file, it simply ignores it.

I have a variable in another file(header.inc.php) that looks like this:

$site['url']               = "http://www.mydomainname.com";

Then I put the require function where the EOF code is:

require_once('../../inc/header.inc.php');

The file where the EOF code is , looks like this:

function getServices() {
$sCode .= <<<EOF
<a href="{$site['url']}" class="amenu">Home</a>
EOF;
return $sCode;
}

The variable $site['url'] is empty when I then call that function..

This is driving me crazy! Is there any reason why the EOF code should ignore that variable??

EOF is not a function. You're referring to "heredoc syntax" for delimiting strings. The delimiter you choose (e.g. EOF) is relatively arbitrary. — Lightness Races in Orbit
– Lightness Races in Orbit, Commented May 23, 2011 at 17:01
Also, I would say that it's probably a good idea NOT to use "EOF" as that implies "End of File". Perhaps use EOT (End of Text), as EOF can confuse many programmers who might be reading your code later. — Michael Petrov
– Michael Petrov, Commented May 23, 2011 at 17:10

Michael Petrov · Accepted Answer · 2011-05-23 16:55:59Z

4

Try global $site; as the first line in your function. Any global variables are not automatically visible in PHP unless you bring them into the function as globals.

answered May 23, 2011 at 16:55

Michael Petrov

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1 Comment

user212218 Over a year ago

@DiegoP. if Michael's suggestion solved your problem, consider marking it as the accepted answer.

Lightness Races in Orbit · Accepted Answer · 2011-05-23 17:04:06Z

0

This is not related to heredoc syntax. It's a simple variable visibility issue.

getServices() cannot "see" $site['url'] (or $site) in general.

If $site is a global (ew), write global $site; as the first line of your function, in order to bring it into scope.
Otherwise, pass it as a function parameter to getServices().

BTW, $sCode .= ... should probably be $sCode = ..., if I'm right in guessing that you're making a new string variable, not appending to an existing one.

answered May 23, 2011 at 17:04

Lightness Races in Orbit

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