The code for http://www.downintheflood.com/source/examples.php5 is displayed.
<pre>
<?php
$hr = '<br /><hr style="border:solid #0000CC 1px; height:1px; width:555px; position:absolute; left:5px;"/><br />';
$fc = '<font style="color:#0000CD;font-weight:bold;">';
$fruits = array( "d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple" );
echo "$hr\n";
print_r($fruits);
echo $hr;
print "\n$fc arsort</font> Sort an array in reverse order and maintain index association\n\n";
arsort($fruits);
foreach ($fruits as $key => $val) { echo "$key = $val\n"; }
echo $hr;
print "\n$fc asort</font> Sort an array and maintain index association\n\n";
asort($fruits);
foreach ($fruits as $key => $val) { echo "$key = $val\n"; }
echo $hr;
print "\n$fc krsort</font> Sort an array by key in reverse order\n\n";
krsort($fruits);
foreach ($fruits as $key => $val) { echo "$key = $val\n"; }
echo $hr;
print "\n$fc ksort</font> Sort an array by key\n\n";
ksort($fruits);
foreach ($fruits as $key => $val) { echo "$key = $val\n"; }
echo $hr;
print "\n$fc rsort</font> Sort an array in reverse order\n\n";
rsort($fruits);
foreach ($fruits as $key => $val) { echo "$key = $val\n"; }
echo $hr;
print "\n$fc sort</font> Sort an array\n\n";
sort($fruits);
foreach ($fruits as $key => $val) { echo "$key = $val\n"; }
echo $hr;
print "\n$fc natsort</font> Sort an array using a \"<i>natural order</i>\" algorithm\n\n";
$array1 = $array2 = array("img12.png", "img10.png", "img2.png", "img1.png");
sort($array1);
echo "$fc Standard sorting</font>\n\n";
print_r($array1);
natsort($array2);
echo "\n$fc Natural order sorting</font>\n\n";
print_r($array2);
echo $hr;
print "\n$fc array_unique</font> Removes duplicate values from an array\n\n";
$input = array("a" => "green", "red", "b" => "green", "blue", "red");
print_r($input);
print "\n$fc Example #1 array_unique() example</font>\n\n";
$result = array_unique($input);
print_r($result);
print "\n$fc Example #2 array_unique() and types</font>\n\n";
$input = array(4, "4", "3", 4, 3, "3");
$result = array_unique($input);
var_dump($result);
echo $hr;
print "\n$fc print_r</font> and$fc var_dump</font>\n\n";
print_r($fruits);
print "\n";
var_dump($fruits);
echo $hr;
?>
</pre>