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<?php
// http://www.php.net/manual/en/function.array-intersect-key.php
// PHP 5 >= 5.1.0RC1
function array_intersect_key()
{
$args = func_get_args();
if (count($args) < 2) {
trigger_error('Wrong parameter count for array_intersect_key()', E_USER_WARNING);
return;
}
// Check arrays
$array_count = count($args);
for ($i = 0; $i !== $array_count; $i++) {
if (!is_array($args[$i])) {
trigger_error('array_intersect_key() Argument #' . ($i + 1) . ' is not an array', E_USER_WARNING);
return;
}
}
// Compare entries
$result = array();
foreach ($args[0] as $key1 => $value1) {
for ($i = 1; $i !== $array_count; $i++) {
foreach ($args[$i] as $key2 => $value2) {
if ((string) $key1 === (string) $key2) {
$result[$key1] = $value1;
}
}
}
}
return $result;
}
?>
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