The definition of Matrix Addition is adding one matrix by another matrix is obtained by just adding the corresponding entries of the matrices. In this tutorial, I am giving a matrix addition example using the PHP program.

## The Below is an Example of Matrix Addition for Two Matrices

Suppose there is a matrix: a b c d There is another matrix: e f g h Now the addition of two matrices will be: a+e b+f c+g d+h

## Here is a PHP Program Example for the Implementation of Matrix Addition

<html> <body> <?php echo "<b>The First matrix is given below:-</b>"."<br>"; $a=array(array());// First two dimensional array declaration $b=array(array());//Second two dimensional array declaration $c=array(array());//Third two dimensional array declaration $rows=4; $cols=4; $m=1; $n=1; for($i=0;$i<$rows;$i=$i+1) { for($j=0;$j<$cols;$j=$j+1) { $a[$i][$j]=$m; echo $a[$i][$j]." "; $m=$m+1; } echo "<br>"; } echo "<b>The second matrix is given below:-</b><br>"; for($i=0;$i<$rows;$i=$i+1) { for($j=0;$j<$cols;$j=$j+1) { $b[$i][$j]=$n; echo $b[$i][$j]." "; $n=$n*1; } echo "<br>"; } echo "<b>The Final matrix is given below:-</b>"."<br>"; for($i=0;$i<$rows;$i=$i+1) { for($j=0;$j<$cols;$j=$j+1) { $c[$i][$j]=$a[$i][$j]+$b[$i][$j]; echo $c[$i][$j]." "; } echo "<br>"; } ?> </body> </html>

### Output:

The First matrix is given below:-1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16The second matrix is given below:-1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1The Final matrix is given below:-2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Here firstly we have created two matrices and displayed, then we have performed the addition of two matrices using the statement here $c[$i][$j]=$a[$i][$j]+$b[$i][$j] and finally we have displayed the resultant matrix.