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Please explain this code !!!

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  • mithu_khan284
    Message 1 of 1 , Feb 4, 2013
    • 0 Attachment
      <?php
      echo "<h1>Multiplication table</h1>";
      echo "<table border=2 width=50%";

      for ($i = 1; $i <= 9; $i++ ) { //this is the outer loop
      echo "<tr>";
      echo "<td>".$i."</td>";

      for ( $j = 2; $j <= 9; $j++ ) { // inner loop
      echo "<td>".$i * $j."</td>";
      }

      echo "</tr>";
      }
      echo "</table>";
      ?>
      <?php
      $total = 0;
      $even = 0;
      for ( $x = 1, $y = 1; $x <= 10; $x++, $y++ ) {
      if ( ( $y % 2 ) == 0 ) {
      $even = $even + $y;
      }
      $total = $total + $x;
      }
      echo "The total sum: ".$total."<br />";
      echo "The sum of even values: ".$even;

      ?>

      and here is out put:

      Multiplication table
      1 2 3 4 5 6 7 8 9
      2 4 6 8 10 12 14 16 18
      3 6 9 12 15 18 21 24 27
      4 8 12 16 20 24 28 32 36
      5 10 15 20 25 30 35 40 45
      6 12 18 24 30 36 42 48 54
      7 14 21 28 35 42 49 56 63
      8 16 24 32 40 48 56 64 72
      9 18 27 36 45 54 63 72 81

      The total sum: 55
      The sum of even values: 30

      I am not understand it. Please help me. I am just newbie in php.

      Thanks.
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