In php the basic structure of a for loop is
for( expression1; condition; expression2)
expression3;
- expression1 is executed once at the start. Here, you usually set the initial value of a counter
- The condition expression is tested before each iteration. If the expression returns false, iteration stops. Here, you usually test the counter against a limit
- expression2 is executed at the end of each iteration. Here, you usually adjust the value of the counter
- expression3 is executed once per iteration. This expression is usually a block of code and contains the bulk of the loop code
Example of for loop
<?php
for ($distance = 50; $distance <= 250; $distance += 50) {
echo "<tr>
<td style=\"text-align: right;\">".$distance."</td>
<td style=\"text-align: right;\">".($distance / 10)."</td>
</tr>\n";}
?>