Associative Arrays in PHP

PHP How To

An associative array is composed of a collection of key and value pairs. Indexed array is an array with a numeric key.

Simple Declaration

$carParts = array( 
 'Tires'=>100, 
 'Window'=>1042, 
 'DoorHandle'=>917 
);

Array of Associative Arrays

public $notifyPartners = array(
 array(
 'name' => 'Twitter', 
 'tag' => 'Social Network', 
 'url' => ''),
 array(
 'name' => 'Campaign Monitor', 
 'tag' => 'Email Marketing', 
 'url' => ''),
 array(
 'name' => 'Sendloop', 
 'tag' => 'Email Marketing', 
 'url' => ''),
 array(
 'name' => 'Highrise', 
 'tag' => 'CRM', 
 'url' => '')
);

Looping Using For Each

foreach ($carParts as $key => $value) {
 echo $key.'=>'.$value.'<br />';
}

Looping Using While

while ($element = each($carParts)) {
 echo $element['key'];
 echo ' - ';
 echo $element['value'];
 echo '<br />';
}