Selecting Specific Keys

[Shawazi]

Is there a function I've missed that will shrink my array to only certain key name patterns so

$my_array = array('Var1' => "A", 'Var2' => "B", 'Blah' => "C");

//$my_array = somefunction($my_array, "^Var");

foreach ($my_array as $key => $value)
echo "$key: $value<br />";

will only echo Var1 and Var2, but not blah.

[Weedpacket]

$new_array = array();
$kept_keys = array_filter(array_keys($my_array), /*insert callback here*/);
foreach($kept_keys as $key)
    $new_array[$key] = $my_array[$key];
$my_array = $new_array;