how to do this?

[spiderman07]

Hi all, programming newbie here.

 

how to program in PHP to get the following output?

 

x 0 0 0 0

0 x 0 0 0

0 0 x 0 0

0 0 0 x 0

0 0 0 0 x

 

use for loop? any idea?

 

for($i=0;i<4;i++)

  for(j=??????)

{

 

 

 

}

 

something like right?

 

thank you!

 

 

[spiderman07]

any idea???

[maxim]

print "x 0 0 0 0\n";
print "0 x 0 0 0\n";
print "0 0 x 0 0\n";
print "0 0 0 x 0\n";
print "0 0 0 0 x\n";

[Nameless12]

<?php

$n = 0;

 

for ($i = 0; $i < 5; $i++)

{

  for ($j = 0; $j < 5; $j++)

        echo ($j == $n)  ? ' x ' : ' 0 ';

 

    echo PHP_EOL;

    $n++;

}

?>

 

if you are trying to create a board game such as chess it will be a lot easier if you use bitwise as a method for checking what value is on what square, anyway goodluck.

 

[spiderman07]

could you please explain it? i don understand the code. sorry. really newbie here.

[Nameless12]

Ill just explain the parts you might not be familiar with the rest you should learn by experimenting. Try modifying my source code to understand it, its easier to just see how it works than type how it works.

 

echo ($j == $n) ? 'x' : '0';

 

this line is actually a short if statement,  ?: is called the terinary operator

 

$var = (condition) ? '$var == this text' : 'otherwise $var is this';

 

this can be rewritten as

 

if (condition)

    $var = '';

else

    $var = '';

 

PHP_EOL is just a constant the constants value is "\n", EOL stands for END OF LINE.