For Loop
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For Loop

For loop in PHP is the most complicated loop. We use this loop when we know how many time the code should run.

Syntax for for loop is as below-

for (expression1, expression2, expression3) {

statement

}


First expression executed at the beginning of the loop. Post execution of first expression, the second expression executed. If the second expression returns true then statement executed. And if the second statement returns false, the loop end.
 

Third expression executed at the end of the loop. Each of the expressions can be empty or contain multiple expressions separated by commas.
 

See below example -

<?php
for ($i=1; $i<=5; $i++) {
	echo $i;
	}
?>

Output:

12345

 

In the above code value of i was set to 1 and printed. Each time it was printed, increased by 1 and checked whether it is <= 5.

 

 

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