/usr/share/php/PHP/Compat/Function/array_intersect_uassoc.php is in php-compat 1.6.0a3-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Replace array_intersect_uassoc()
*
* @category PHP
* @package PHP_Compat
* @license LGPL - http://www.gnu.org/licenses/lgpl.html
* @copyright 2004-2007 Aidan Lister <aidan@php.net>, Arpad Ray <arpad@php.net>
* @link http://php.net/function.array_intersect_uassoc
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 269597 $
* @since PHP 5
* @require PHP 4.0.6 (is_callable)
*/
function php_compat_array_intersect_uassoc()
{
// Sanity check
$args = func_get_args();
if (count($args) < 3) {
user_error('Wrong parameter count for array_intersect_ukey()', E_USER_WARNING);
return;
}
// Get compare function
$compare_func = array_pop($args);
if (!is_callable($compare_func)) {
if (is_array($compare_func)) {
$compare_func = $compare_func[0] . '::' . $compare_func[1];
}
user_error('array_intersect_uassoc() Not a valid callback ' .
$compare_func, E_USER_WARNING);
return;
}
// Check arrays
$array_count = count($args);
for ($i = 0; $i !== $array_count; $i++) {
if (!is_array($args[$i])) {
user_error('array_intersect_uassoc() Argument #' .
($i + 1) . ' is not an array', E_USER_WARNING);
return;
}
}
// Compare entries
$result = array();
foreach ($args[0] as $k => $v) {
for ($i = 0; $i < $array_count; $i++) {
$match = false;
foreach ($args[$i] as $kk => $vv) {
$compare = call_user_func_array($compare_func, array($k, $kk));
if ($compare === 0 && $v == $vv) {
$match = true;
continue 2;
}
}
if ($match === false) {
continue 2;
}
}
if ($match === true) {
$result[$k] = $v;
}
}
return $result;
}
// Define
if (!function_exists('array_intersect_uassoc')) {
function array_intersect_uassoc()
{
$args = func_get_args();
return call_user_func_array('php_compat_array_intersect_uassoc', $args);
}
}
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