For Loop

For loop sets condition variable initialization and modification on one line.

Syntax

initialization - sets variables used in the loop (like $i = 0)

condition - Until when the cycle will keep on executing. Like $i <= 10.

modification - could avoid infinite loops (like $i++).

Basic Example

Let's have a program that prints each number from 1 to 10.

Output:

The initialization$i = 1 performs first - before loop's iterations.

$i++ executes in the end of every iteration.

Infinite loops

An infinite for-loop has a condition that's always true or it's unset.

Let's look at the following example

Output:

Since condition is not specified the loop repeats infinitely.

There is more than 1 way of defining infinite loop.

Output:

In this case the only segment that's not specified is the condition therefore the cycle doesn't end.