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If you are new to PHP or just need to refresh your skills, this is the place to start. This series of tutorials will give you the basic knowledge you will need to create a simple PHP website.

PHP is a reflective programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses.

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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

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:

Note: The second parameter was added in PHP 4.

Warning

Be careful when sorting arrays with mixed types values because sort() can produce unpredictable results.

See also arsort(), asort(), ksort(), krsort(), natsort(), natcasesort(), rsort(), usort(), array_multisort(), and uksort().

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Another Useful functions:


zend-api.zend-qsort | zend-api.zend-ini-sort-entries | zend-api.zend-hash-sort | function.yaz-sort | function.usort | function.uksort | function.uasort | function.swishsearch-setsort | function.sort | function.rsort | function.natsort | function.natcasesort | function.ldap-sort | function.ksort | function.krsort | function.imap-sort | function.dbx-sort | function.asort | function.arsort | function.array-multisort |


PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. If you are new to PHP and want to get some idea of how it works, try the introductory tutorial. After that, check out the online manual, and the example archive sites and some of the other resources available in the links section.