php arrays

Extracting Elements from PHP Arrays with array_slice()

30 March 2010 / Leave a Comment

In Working With Array Elements in PHP, you saw how to read and change individual elements within a PHP array. However, sometimes it’s useful to work with a range of array elements. For example, you may want to work with a large array in chunks, or sort an array then retrieve just the “top 10” values from the start of the array.

In this tutorial you’ll explore PHP’s array_slice() function for extracting a range of elements from an array.

Working With Array Elements in PHP

19 March 2010 / 2 Comments

In Creating Arrays in PHP, you learned how PHP arrays work, and saw how to create an array using PHP.

In this article you take things further, and look at how to access the individual elements inside a PHP array. You’ll see how to:

Read element values
Alter element values
Add and remove elements in an array
Output the entire contents of an array

Creating Arrays in PHP

10 March 2010 / 3 Comments

Like most programming languages, PHP lets you create arrays. An array is a special type of variable that can hold many values at once, all accessible via a single variable name. Arrays are very useful whenever you need to work with large amounts of data — such as records from a database — or group related data together.

In this article, you’ll:

Learn how PHP arrays work, and why they’re useful
Look at the difference between indexed arrays and associative arrays, and
Learn how to create arrays within your PHP scripts.

php arrays

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