Thursday, 03 October 2019

Printing out a Matrix by Using the Implode Function in PHP

In PHP, we can use a 2D array to store data for a matrix. A 2D array is actually an array of arrays. A 2D matrix can then be created as below.

$m = array
    (
    array(0, 1, 2),
    array(3, 4, 5),
    array(6, 7, 8)
    );

In PHP, the implode function implode(string $glue, array $pieces ):string can be used to join array elements with a glue string. It makes it easy to print out an array in PHP. To print out the data of a 2D matrix as above, we can do like this:

for ($i = 0; $i < count($m); $i++) {
    echo implode(' ', $m[$i]).'<br>';
}    

The output will be:

0 1 2
3 4 5
6 7 8