Question

I have a file named config.php, content:

define ('CLIENT_ID', 'foo');

I have a file named requiredconstants.php, content:

$aRequiredConstants = array (
'CLIENT_ID',
);

Now, I want to check, in index.php, if every value from $aRequiredConstants is defined

print_r of $aRequiredConstants returns

array (
[0] => 'CLIENT_ID',
)

echo CLIENT_ID returns foo

but when I try

foreach($aRequiredConstants as $key => $value)
if(!defined($value))
    echo "NOT DEFINED";

It returns NOT DEFINED.. but why? It IS defined.

Answer 1

Works just fine:

<?php
define('have', 2);
$a = array('have', 'not');
foreach($a as $v) {
    if( defined($v) ) {
        echo $v . ' is OK'."\n";
    } else {
        echo $v . ' is NOT'."\n";
    }
}