ID:               21490
 Updated by:       [EMAIL PROTECTED]
 Reported By:      [EMAIL PROTECTED]
 Status:           Bogus
 Bug Type:         Unknown/Other Function
 Operating System: Linux
 PHP Version:      4.3.0
 New Comment:

Note:

$test = ""; sets the variable test to an empty string. 
So isset() will return TRUE. Since you're passing "$var" and $var is
empty, it will be set to an empty string. 

That explains why it returns TRUE with "$var" and not with only $var.

Thank you for your report.


Previous Comments:
------------------------------------------------------------------------

[2003-01-07 07:58:45] [EMAIL PROTECTED]

Yes it $ddfdfdf is empty, isset will return FALSE.

According to the following script :

<?php

$test = array ('a' => 'coooool','b' => "$tests");
if (isset($test['b']) ) {
echo "OK 1! \n";
}

$test = array ('a' => 'coooool','b' => $tests);
if ( isset($test['b']) ) {
echo "OK 2! \n";
}

$tests = "lol";

$test = array ('a' => 'coooool','b' => $tests);
if ( isset($test['b']) ) {
echo "OK 3! \n";
}

?>

That returns:

OK 1!
OK 3!

If you set an element of an array to a variable that is empty, isset
will definatly return FALSE.

Excepted behaviour.

------------------------------------------------------------------------

[2003-01-07 07:53:02] [EMAIL PROTECTED]

Don't know if it's a bug or a feature... :)

$test = array ('a' => 'coooool','b' => $ddfdfdf);
if ( isset($test['b']) ) {
        echo "OOOK ! \n";
}

echoes nothing, and

$test = array ('a' => 'coooool','b' => "$ddfdfdf");
if ( isset($test['b']) ) {
        echo "OOOK ! \n";
}
echoes OOOK

Is this normal ?

------------------------------------------------------------------------


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