php define variables from array associative

1<?php 
2/* 
3There are 3 Types of array in php  
41. Indexed arrays - Arrays with a numeric index
52. Associative arrays - Arrays with named keys
63. Multidimensional arrays - Arrays containing one or more arrays
7
8This is the second one - Associative arrays
9*/
10
11$age = array("Samy"=>"35", "Naveen"=>"37", "Amit"=>"43");
12echo "Mr.Samy is " . $age['Samy'] . " years old.";
13
14?>

1
2<?php
3$array = array(
4    "foo" => "bar",
5    42    => 24,
6    "multi" => array(
7         "dimensional" => array(
8             "array" => "foo"
9         )
10    )
11);
12
13var_dump($array["foo"]);
14var_dump($array[42]);
15var_dump($array["multi"]["dimensional"]["array"]);
16?>
17
18

1<?php
2	$array = [
3		'key1' => 'foo',
4  		'key2' => 'bar',
5	];
6	extract($array);
7	
8	echo $key1; //print foo
9	echo $key2; //print bar
10?>

1<?php
2$arr = array('fruit' => 'mango', 'vegetable' => 'tomato', 'thing' => 'bag');
3echo $arr['fruit'];
4/*OUTPUT
5mango*/
6?>
7