PHP array() Function

Create an indexed array named $cars, assign three elements to it, and then print a text containing the array values:

<?php
$cars=array("Volvo","BMW","Toyota");
echo "I like " . $cars[0] . ", " . $cars[1] . " and " . $cars[2] . ".";
?>

Definition and Usage

The array() function is used to create an array.

In PHP, there are three types of arrays:

Syntax for indexed arrays:

array(value1, value2, value3, etc.)

Syntax for associative arrays:

array(key=>value,key=>value,key=>value,etc.)

Parameter	Description
key	Specifies the key (numeric or string)
value	Specifies the value

Return Value:	Returns an array of the parameters
PHP Version:	4+
Changelog:	As of PHP 5.4, it is possible to use a short array syntax, which replaces array() with []. E.g. $cars=["Volvo","BMW"]; instead of $cars=array("Volvo","BMW");

Create an associative array named $age:

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
echo "Peter is " . $age['Peter'] . " years old.";
?>

Loop through and print all the values of an indexed array:

<?php
$cars=array("Volvo","BMW","Toyota");
$arrlength=count($cars);

for($x=0;$x<$arrlength;$x++)
{
echo $cars[$x];
echo "<br>";
}
?>

Loop through and print all the values of an associative array:

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");

foreach($age as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}
?>

Create a multidimensional array:

<?php
// A two-dimensional array:
$cars=array
(
array("Volvo",100,96),
array("BMW",60,59),
array("Toyota",110,100)
);
?>