I must be missing something obvious: I'm returning an associative array after my query runs, and for each nested array I wish to append $child['Is_Child'] = '0'; When I print out the $child array it is correct, but the $child_participants array does not have it appended; why?
if ($query->num_rows() > 0)
{
$child_participants = $query->result_array();
foreach($child_participants as $child)
{
$child['Is_Child'] = '0';
}
return $child_participants;
}
Pass a reference instead of value by using &$child
foreach($child_participants as &$child)
By default, $child is a copy of the element of the original array. You need to use a reference to modify the actual element:
foreach ($child_participants as &$child) {
$child['Is_Child'] = '0';
}
The & operator makes this a reference.
Because you are modifying $child as it's called, not the parent array.
You can do this:
if ($query->num_rows() > 0)
{
$child_participants= $query->result_array();
foreach($child_participants as $key => $child)
{
$child_participants[$key]["Is_Child"] = '0'; ;
}
return $child_participants;
}
The $child variable, as you declared it in a PHP foreach array, is immutable unless you tell PHP to make it mutable with the & operator.
foreach($child_participants as &$child)
{
$child['Is_Child'] = '0';
}
