# Multiplication of two matrix in php

Php program for Multiplication of two matrix. Here more solutions.

``````<?php
/*
Php program for
Two matrix multiplication
*/
class Multiply
{
// Display the element of given 2d matrix
public static function printRecord(\$matrix)
{
echo "  --------------\n";
// Assume  N x N Matrix size
\$row = count(\$matrix);
\$col = count(\$matrix[0]);
// Iterate the row element
for (\$i = 0; \$i < \$row; ++\$i)
{
// Iterate the column element
for (\$j = 0; \$j < \$col; ++\$j)
{
// Display element value
echo "  ".(\$matrix[\$i][\$j]);
}
print("\n");
}
print("\n");
}
public static
function multiplication(\$a, \$b)
{
// Get the size
\$row = count(\$a);
\$col = count(\$a[0]);
// This matrix are store the result of multiplication
\$result = array_fill(0, \$row, array_fill(0, \$col, 0));
for (\$i = 0; \$i < \$row; ++\$i)
{
for (\$j = 0; \$j < \$col; ++\$j)
{
// Set the initial value of new matrix element
\$result[\$i][\$j] = 0;
for (\$k = 0; \$k < \$row; ++\$k)
{
// Multiply matrix A [i] row and [k] columns to
// the Matrix B [k] columns and [j] rows.
\$result[\$i][\$j] += \$a[\$i][\$k] * \$b[\$k][\$j];
}
}
}
echo "  Matrix A\n";
// Print element of matrix x
Multiply::printRecord(\$a);
echo "  Matrix B\n";
// Print element of matrix y
Multiply::printRecord(\$b);
echo "  Matrix [(A) x (B)]\n";
// Display resultant matrix
Multiply::printRecord(\$result);
}
public static function main()
{
// Define matrix A
\$a = array(
array(1, 2, 3),
array(6, 1, 2),
array(5, 4, 3)
);
// Define matrix B
\$b = array(
array(3, 1, 3),
array(1, 1, 2),
array(2, 2, 3)
);
Multiply::multiplication(\$a, \$b);
}
}
Multiply::main();``````

Output

``````  Matrix A
--------------
1  2  3
6  1  2
5  4  3

Matrix B
--------------
3  1  3
1  1  2
2  2  3

Matrix [(A) x (B)]
--------------
11  9  16
23  11  26
25  15  32

``````

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