if (is_array($_POST["assoc_$key"])) {
            foreach ($this->getAssocSectionsObjArray($key, $dbAP) as $obj) {
             print_r($obj); print_r(" in array? "); print_r(in_array($obj, $result)); print_r("<P>");
             if (!in_array($obj, $result)) array_push($result, $obj);
            }
           }

Here is the output of the result of this script:

stdClass Object ( [id] => 2 [placement_name] => Placement #1 ) in array?
Warning: in_array(): Wrong datatype for first argument in /image_catalog/include/classes.inc.php on line 99

Warning: in_array(): Wrong datatype for first argument in /www/html/mu-spin/image_catalog/include/classes.inc.php on line 100
stdClass Object ( [id] => 4 [placement_name] => Placement #10 ) in array?
Warning: in_array(): Wrong datatype for first argument in /image_catalog/include/classes.inc.php on line 99

Warning: in_array(): Wrong datatype for first argument in /www/html/mu-spin/image_catalog/include/classes.inc.php on line 100
stdClass Object ( [id] => 6 [placement_name] => http://blah.com ) in array?
Warning: in_array(): Wrong datatype for first argument in /image_catalog/include/classes.inc.php on line 99

Warning: in_array(): Wrong datatype for first argument in /image_catalog/include/classes.inc.php on line 100

What I have to do is compare an array of objects, $result, with another array of objects, $this->getAssocSectionsObjArray($key, $dbAP). Both arrays will be identical in structure and object formatting, but not in object data content. What I need to do is to find out if that one array has the very same object as the other, then don't add it to $result, otherwise, add to $result.

The object formatting is as follows:

obj: stdClass Object ( [id] => 2 [placement_name] => Placement #1 )

And $result can look like this:

result: Array ( [0] => stdClass Object ( [id] => 6 [placement_name] => Placement #27 ) [1] => stdClass Object ( [id] => 2 [placement_name] => Placement #1 ) )

I don't wish to loop through both arrays, that would be a performance nightmare to do that. Is there a version of in_array in existence for comparing objects?

Thanx
Phil

PS: I went to this manual example at http://us3.php.net/manual/en/function.in-array.php#40079 but that involves recursive handling and object rebuilding - this, were I to figure out what the living blue it is, would have to be put inside another loop.. OUCH!

    I may have solved it, but someone might want to check behind me on this one:

    $result = array_intersect($this->getAssocSectionsObjArray($key, $dbAP), array_intersect($result, $this->getAssocSectionsObjArray($key, $dbAP)));

    I honestly can't logically figure out why it works, so can someone else explain it, thanx?

    Phil

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