<?php

/* { error reporting } */
error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);
ini_set('display_errors', 1);

function search($array, $b) {
    $ok = true;
    foreach ($b as $key => $value) {
        if (!isset($array[$key])) { $ok = false; break; }
        if (!is_array($value))
            $ok = ($array[$key] == $value);
        else
            $ok = search($array[$key], $value);
        if ($ok === false) break;
    }
    return $ok;
}

$example_array = array(
    'id' => '123',
    'name' => array('first' => 'pete', 'last' => 'foo'),
    'address' => array(
        'shipping' => array('zip' => '1234', 'country' => 'USA')
    )
);

// These should return true:
echo (search($example_array, array('id' => '123'))) ? 'true' : 'false'; echo '<br>';
echo (search($example_array, array('name' => array('first' => 'pete')))) ? 'true' : 'false'; echo '<br>';
echo (search($example_array, array('address' => array('shipping' => array('country' => 'USA'))))) ? 'true' : 'false'; echo '<br>';

// These don't have to return true:
echo (search($example_array, array('first' => 'pete'))) ? 'true' : 'false'; echo '<br>';
echo (search($example_array, array('country' => 'USA'))) ? 'true' : 'false'; echo '<br>';


?>