> Online tutorial : Associative Array in php
Showing posts with label Associative Array in php. Show all posts
Showing posts with label Associative Array in php. Show all posts

array_sum() in php

The array_sum() function returns the sum of all the values in the array

Syntax
array_sum(array)
Example

<?php
// sum the all the values in the array
$sum=array(0=>15,1=>15,1=>15,);
echo array_sum($sum);

?>

Output
45

Associative Array in php

Associative Arrays
An associative array, each ID key is associated with a value.
When storing data about specific named values, a numerical array is not always the best way to
do it.
With associative arrays we can use the values as keys and assign values to them.
Example 1
In this example we use an array to assign ages to the different persons:
$ages = array("Peter"=>32, "Quagmire"=>30, "Joe"=>34);
Example 2
This example is the same as example 1, but shows a different way of creating the array:
>

$ages['Peter'] = "32";
$ages['Quagmire'] = "30";
$ages['Joe'] = "34";

The ID keys can be used in a script:

<
?php
$ages['Peter'] = "32";
$ages['Quagmire'] = "30";
$ages['Joe'] = "34";
echo "Peter is " . $ages['Peter'] . " years old.";
?>
The code above will output:
Peter is 32 years old.