Tag Archives: Array

PHP

array_reduce

It reduce the array to a single value using a callback function

Example

<?php
function reduce($arg1, $arg2){
$arg1 += $arg2;
return $arg1;
}

$array1 = array(1, 7, 8, 4, 5);
$array2 = array_reduce($array1, “reduce”);
print_r($array2);
?>

Output

25

PHP

array_rand

The array_rand() function returns a random key from an array, or it returns an array of random keys if you specify that the function should return more than one key.

Example

<?php
 $array = array("PHP", "ASP", "JSP");
 $keys = array_rand($array, 2);
 echo $array[$keys[0]];
 ?>

Output

PHP

PHP

array_push

It pushes one or more elements onto the end of array

Example

<?php
echo “<pre>”;
$array = array(“PHP”, “ASP”);
array_push($array, “JSP”, “VB”);
print_r($array);
?>

Output

Array
(
[0] => PHP
[1] => ASP
[2] => JSP
[3] => VB
)


PHP

array_pad

It pads array to the specified length with a value

Example

<?php
echo “<pre>”;
$array1 = array(2, 4,1, 3);
$array2 = array_pad($array1, 5, 0);
print_r($array2);
?>

Output

Array
(
[0] => 2
[1] => 4
[2] => 1
[3] => 3
[4] => 0
)


PHP

array_merge

It merge arrays

Example

<?php
echo “<pre>”;
$array1 =array(1 => ‘PHP’);
$array2 = array(1 => ‘ASP’);
$array3 = array_merge($array2,$array1);
print_r($array3);
?>

Output

Array
(
[0] => ASP
[1] => PHP
)


PHP

array_merge_recursive

It merges two or more arrays recursively

Example

<?php
echo “<pre>”;
$array1 = array(“PHP” => array(“WEB” => “1”), 7);
$array2 = array(17, “ASP” => array(“FAV” => “34”, “84”));
$array3 =($array1, $array2);
print_r($array3);
?>

Output

Array
(
[PHP] => Array
(
[WEB] => 1
)

[0] => 7
[1] => 17
[ASP] => Array
(
[FAV] => 34
[0] => 84
)


PHP

array_map

It applies the callback to the elements of the given arrays

Example

<?php
function squr($arg){
return($arg * $arg );
}
echo “<pre>”;
$array1 = array(1,7,5,1,9,8,4);
$array2 = array_map(“squr”, $array1);
print_r($array2);
?>

Output

Array
(
[0] => 1
[1] => 49
[2] => 25
[3] => 1
[4] => 81
[5] => 64
[6] => 16
)