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[RHochstenbach]

I'm having an issue with the implode() function in PHP. Basically I have a dynamicly built form which uses POST with array-names to pass information. Therefore some of the $_POST array items contain another batch of arrays.

$participant_array = array();

$find_all_locations = mysql_query("SELECT location_id FROM locations");

			

		while($fetch_all_locations = mysql_fetch_array($find_all_locations)) {

				$location_id_found = $fetch_all_locations['location_id'];

				

				// Generate the array key name for the POST variable

				$postkey = "participants_".$location_id_found;

				

				// Count the amount of array items

				$countamount = count($_POST[$postkey]);

				

				// Remove empty keys

				for($counter = 0;$counter <= $countamount;$counter++) {

					if($_POST[$postkey][$counter] == "" OR $_POST[$postkey][$counter] == NULL) {

							unset($_POST[$postkey][$counter]);

					}

				}

					

					

					$participant_array[$location_id_found] = implode(",", $_POST[$postkey]);

				

				

}

When I change $_POST[$postkey] to one of the actual names ($_POST['participants_1']), it does not show an error. I have verified that $_POST[$postkey] is an actual array. Altough it shows these errors, it does work though. So it's complaining about an issue that doesn't exist. Is this a bug, or am I doing something wrong?