Sort multidimensional array

<?php
$people = array(
array("name"=>"Bob","age"=>8,"colour"=>"red"),
array("name"=>"Greg","age"=>12,"colour"=>"blue"),
array("name"=>"Andy","age"=>5,"colour"=>"purple"));

var_dump($people);

$sortArray = array();

foreach($people as $person){
foreach($person as $key=>$value){
if(!isset($sortArray[$key])){
$sortArray[$key] = array();
}
$sortArray[$key][] = $value;
}
}

$orderby = "name"; //change this to whatever key you want from the array

array_multisort($sortArray[$orderby],SORT_DESC,$people);

var_dump($people);
?>

print_r for javascript

<script type="text/javascript">
/**
* Function : dump()
* Arguments: The data - array,hash(associative array),object
* The level - OPTIONAL
* Returns : The textual representation of the array.
* This function was inspired by the print_r function of PHP.
* This will accept some data as the argument and return a
* text that will be a more readable version of the
* array/hash/object that is given.
* Docs: http://www.openjs.com/scripts/others/dump_function_php_print_r.php
*/
function dump(arr,level) {
var dumped_text = "";
if(!level) level = 0;

//The padding given at the beginning of the line.
var level_padding = "";
for(var j=0;j<level+1;j++) level_padding += " ";

if(typeof(arr) == 'object') { //Array/Hashes/Objects
for(var item in arr) {
var value = arr[item];

if(typeof(value) == 'object') { //If it is an array,
dumped_text += level_padding + "'" + item + "' ...n";
dumped_text += dump(value,level+1);
} else {
dumped_text += level_padding + "'" + item + "' => "" + value + ""n";
}
}
} else { //Stings/Chars/Numbers etc.
dumped_text = "===>"+arr+"<===("+typeof(arr)+")";
}
return dumped_text;
}

//Calling the function...
function init() {
var arra = new Array("So long",'s',42,42.13,"Hello World");
var assoc = {
"val" : "New",
"number" : 8,
"theting" : arra
};

alert(dump(assoc));
}
window.onload=init;
</script>

Function argument arrays

<?php

//The function for your functions.php or plugin

function test_function($args = '') {
$defaults = array(
'arg1' => 'Default Value 1',
'arg2' => 'Default Value 2',
'arg3' => 'Default Value 3',
);

$r = wp_parse_args($args,$defaults);
extract($r);

echo "arg1 = $arg1<br>";
echo "arg2 = $arg2<br>";
echo "arg3 = $arg3<br>";
}

//Call the function using two techniques:

//1 - Using an array

$args = array(
'arg1' => 'Array Value 1',
'arg2' => 'Array Value 2',
'arg3' => 'Array Value 3',
);
test_function($args);

//2 - Using a query string

test_function('arg1=Query Value 1&arg2=Query Value 1&arg3=Query Value 3');