Page 166 - Beginning PHP 5.3

Part II: Learning the Language

Figure 6-7

array_multisort() preserves associations between string keys and their values, but it reindexes
numeric keys.

Adding and Removing Array Elements

You already know that you can add elements to an array using square bracket syntax. For example:
$myArray[] = “new value”;
$myArray[“newKey”] = “new value”;

This syntax is fine for simple scenarios. However, if you need something more powerful, PHP features
five useful functions that you can use to add and remove elements:
❑ array_unshift() – – Adds one or more new elements to the start of an array

❑ array_shift() – – Removes the first element from the start of an array

❑ array_push() — Adds one or more new elements to the end of an array

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