␡
- Accessing All Elements of Numeric Arrays
- Accessing All Elements of Associative Arrays
- Accessing All Array Elements in Nested Arrays
- Turning an Array into Variables
- Converting Strings to Arrays
- Converting Arrays to Strings
- Sorting Arrays Alphabetically
- Sorting Associative Arrays Alphabetically
- Sorting Nested Arrays
- Sorting Nested Associative Arrays
- Sorting IP Addresses (as a Human Would)
- Sorting Anything
- Sorting with Foreign Languages
- Applying an Effect to All Array Elements
- Filtering Arrays
- Getting Random Elements Out of Arrays
- Making Objects Behave Like Arrays
This chapter is from the book
This chapter is from the book
This chapter is from the book
This chapter is from the book
Sorting Associative Arrays Alphabetically
ksort($a); asort($a);
<pre>
<?php
$a = array('one' => 'I', 'two' => 'II', 'three' => 'III', 'four' => 'IV');
ksort($a);
print_r($a);
asort($a);
print_r($a);
?>
</pre>
Sorting an Associative Array (sort_a.php)
Sorting associative arrays can be done in one of several ways:
- Sort by keys, leave key-value association intact: Use ksort().
- Sort by keys in reverse order, leave key-value association intact: Use krsort().
- Sort by values, leave key-value association intact: Use asort().
- Sort by values in reverse order, leave key-value association intact: Use arsort().
The preceding code shows these functions in action; Figure 2.3 shows the result.
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Figure 2.3. Sorting associative arrays