<?php //create 4*4 integer multidimensional array $a=array(array(1,2,3,4), array(1,2,3,4), array(1,2,3,4), array(1,2,3,4)); /* create 4*4 multidimensional array containing variable data type values */ $b=array(array(1,"JAVA",3,4.1), array(1,"C++",3,4.2), array(1,"PHP",3,4.3), array(1,"PYTHON",3,4.4)); //print array echo "Array a :<br><br>"; printMatrix($a); echo "<br>Array b :<br><br>"; printMatrix($b); //user defined function to print multidimensional array function printMatrix($matrix) { for($i=0;$i<count($matrix);$i++) { ...