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PHP array() Function

PHP Array Reference PHP Array Reference

Example

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] . ".";
?>

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Definition and Usage

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

In PHP, there are three types of arrays:

  • Indexed arrays - Arrays with numeric index
  • Associative arrays - Arrays with named keys
  • Multidimensional arrays - Arrays containing one or more arrays

Syntax

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

Technical Details

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");


More Examples

Example 1

Create an associative array named $age:

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

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Example 2

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>";
  }
?>

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Example 3

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>";
  }
?>

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Example 4

Create a multidimensional array:

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

Run example »


PHP Array Reference PHP Array Reference

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