Repetition Using FOR

FOR is used to repeat the order with a known number of repetitions.

Syntax :

for(initialization;condition;modifier)

{

statement

}

Example :

1. Displaying the numbers 1 to 20

            for($x=1;$x<=20;$x++)

{

echo $x;

}

2. Displaying even numbers from 2 to 20

            for($x=2;$x<=20;$x+=2)

{

echo $x;

}

The difference between the first example of the second instance only in the initialization and modifier, which makes x modifier increased 2 each time iteration.