. PHP Manual . Prev . Chapter 26. Source Layout . Next . Complex types such as arrays and objects require different treatment. Zend features a single API for these types - they're stored using hash tables. Note: To reduce complexity in the following source examples, we're only working with simple types such as integers at first. A discussion about creating more advanced types follows later in this chapter. Prev . Home . Next . String Handling . Up . PHP's Automatic Build System