PHP sort
(PHP 3, PHP 4, PHP 5)
sort -- Sort an array
Description
bool sort ( array &array [, int sort_flags] )
This function sorts an array. Elements will be arranged from lowest to highest when this function has completed.
Note: This function assigns new keys for the elements in array . It will remove any existing keys you may have assigned, rather than just reordering the keys.
Returns TRUE on success or FALSE on failure.
Example 1. sort() example
<?php
$fruits = array( "lemon" , "orange" , "banana" , "apple" );
sort ( $fruits );
foreach ( $fruits as $key => $val ) {
echo "fruits[" . $key . "] = " . $val . "\n" ;
}
?>
The above example will output:
fruits[0] = apple fruits[1] = banana fruits[2] = lemon fruits[3] = orange
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The fruits have been sorted in alphabetical order.
The optional second parameter sort_flags may be used to modify the sorting behavior using these values:
Sorting type flags:
• SORT_REGULAR - compare items normally (don't change types)
• SORT_NUMERIC - compare items numerically
• SORT_STRING - compare items as strings
• SORT_LOCALE_STRING - compare items as strings, based on the current locale. Added in PHP 4.4.0 and 5.0.2. Before PHP 6, it uses the system locale, which can be changed using setlocale() . Since PHP 6, you must use the i18n_loc_set_default() function.
Note: The second parameter was added in PHP 4.
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