PHP Tutorial – for loop

The for loop

The for loop is used to execute a set of statements for a certain number of times.

Syntax:

for (init; condition; increment/decrement)
{
code to be executed;
}

Components of for loop:

  • init: set a counter variable and initialize it to a numeric value.
  • condition: evaluates the condition statement, if TRUE the loop will continue if FALSE, the loop ends.
  • increment/decrement: increment or decrement the counter by how much we want.

Example:

<?php
for ($num = 1; $num <= 10; $num++)
{
echo "$num ";
}
?>

In our example we have set counter variable $num to 1.

In our condition the loop will continue to execute as long as the value of $num is less than or equal to ten.

The counter variable $num will increment by 1 each time the loop executes.

Result:

1 2 3 4 5 6 7 8 9 10
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