[RESOLVED] weird behavior involving $_POST

[ppowell]

	// NEW 11/27/2006: FINALLY, IF YOU ADDED OR DELETED OR DID ANY KIND OF FORM ACTION SUCCESSFULLY, DON'T RE-DISPLAY THE NEW EXPENSE ITEMS VIA $_POST
	if ($_POST['hasUpdatedLease'] && (!is_array($leaseObj->errorArray) || @sizeof($leaseObj->errorArray) == 0)) {
	 print_r(array_keys($_POST));
	 @reset($_POST);
	 $tempPost = $_POST;
	 foreach ($_POST as $key => $val) if (strpos($key, 'new_') === 0) array_remove($tempPost, $tempPost[$key]); 
	 @reset($_POST);
	 $_POST =& $tempPost;
	 print_r(array_keys($_POST));
	}

For some reason, even though the condition is always met when I click any of the form submit images, the following "weird behavior patterns" occur:

1) If I click the "Add" submit image, all $POST values whose keys start with "new" should be removed from $POST. However, $POST['new_audited'] and $_POST['new_reoccuring'] remain

2) If I click the "Delete" submit image, all $POST values whose keys start with "new" should be removed from $POST. However, ALL of them remain in $POST untouched!

I can verify that I enter the conditional block by my arrays appearing on screen every time.

Any reason why this is happening that I missed?

Thanx
Phil

[Weedpacket]

Wouldn't it be simpler to make a new array without the offending keys?

$temp = array();
foreach($_POST as $key=>$val)
{
    if(substr($key,0,4)!='new_') $temp[$key]=$val;
}
$_POST = $temp;

[ppowell]

FIXED!

Got it, apparently my own blunder; I was using the wrong user-defined function: instead of array_remove(), I needed array_remove_element_at():

if (!function_exists('array_remove_element_at')) {	// FUTURISTIC: MODEL AFTER JAVA Vector.removeElementAt(index)
 /**
  * Function modeled after {@link http://java.sun.com/j2se/1.4.2/docs/api/java/util/Vector.html#removeElementAt(int) java.util.Vector.removeElementAt((integer)index)}
  *
  * Unlike Java, in PHP you will remove element at array index and return it
  *
  * @access public
  * @param array $array (reference)
  * @param mixed $key
  * @return mixed $element
  */
 function array_remove_element_at(&$array, $key = '') {
  if (is_numeric($key) || (!is_numeric($key) && $array[$key])) {
   if (is_numeric($key)) {
    $element = $array[$key];
    unset($array[$key]);
    $array = @array_values($array);					// RE-ORDER ENUMERATIVE ARRAY
   } elseif (!is_numeric($key) && $array[$key]) {
    $element = $array[$key];
    unset($array[$key]);
   }
  }
  return $element;
 }
}


$tempPost = $_POST;
foreach ($_POST as $key => $val) if (strpos(trim($key), 'new_') === 0) @array_remove_element_at($tempPost, $key);
$_POST =& $tempPost;

Also obviously don't need to use reset() either since the array pointer is irrelevant in this case, at least I think so..

Phil