while Loops
The simplest kind of loop in PHP is the while loop. Like an if statement, it relies on a condition. The difference between a while loop and an if statement is that an if statement executes the following block of code once if the condition is true. A while loop executes the block repeatedly for as long as the condition is true.
<?php
$number = 1;
while($number < 10)
{
echo "Now the number is " . $number . "<br />";
$number++;
}
?>
for Loops
Using a for loop this source code will seems differently and more compact.
<?php
for( $number = 1; $number < 10; $number++ )
{
echo "Now the number is " . $number . "<br />";
}
?>