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PHP For Loop


PHP For Loop is a loop statement which can be used in various forms to execute a block of code continuously as long as the condition of the loop is true, and stops only when the condition fails. These are:

 

For Loop :
For loop is used to execute a group of action only for a specified number of times.

Syntax:

for(initialization; condition; increment/decrement)
{  
code to be executed till the condition is true;
}

For Each Loop :
For Each loop is used for traversing an array to execute a group of action for each elements in an array.

Syntax:

foreach ($array as $element) 
{
code to be executed;
}

Nested For Loop :
Nested For loop is For loop inside a For loop and so on which is used to run multiple loop conditions.
Syntax:

for(initialization; condition; increment/decrement)
{  
	for(initialization; condition; increment/decrement)
	{
         code to be executed till the condition is true;
        }
}

Example 1: Example of For loop

<!DOCTYPE html>
<html>
<body>
 
<?php  
for ($i = 0; $i <= 10; $i++) {
  echo "The number is: $i <br>";
}
?>  
 
</body>
</html>

Output

The number is: 0
The number is: 1
The number is: 2
The number is: 3
The number is: 4
The number is: 5
The number is: 6
The number is: 7
The number is: 8
The number is: 9
The number is: 10

Example 2: Example of For Each loop

<!DOCTYPE html>
<html>
<body>
 
<?php  
$colors = array("BMW", "Ford", "Hyundai", "Jaguar");
 
foreach ($colors as $value) {
  echo "$value <br>";
}
?>  
 
</body>
</html>

Output

BMW
Ford
Hyundai
Jaguar

Example 3: Example of Nested For loop

<!DOCTYPE html>
<html>
<body>
 
<?php  
for ($i = 0; $i <= 2; $i++)
{
 	for ($j = 0; $j <= 5; $j++)
{
$sum = $i+ $j;
echo "$sum<br>";
}
echo "<br>";
}
?>  
 
</body>
</html>

Syntax:

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Posted in PHP   
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