Loops Statement in PHP

PHP loops Statements are used to execute the same block of code again and again.

Types of Loops in PHP

PHP supports 4 different types of loops.

for
while
do...while
foreach

1) For Loop in PHP

for loop repeats a block of code until a certain condition is that means execute a block of code for certain number of times.

Syntax

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

Flowchart

Example :-

<!DOCTYPE html>
<html>
<body>

<?php  
for ($x = 0; $x <= 5; $x++) {
  echo "Number is: $x <br>";
}
?>  

</body>
</html>

Output

Number is: 0 
Number is: 1 
Number is: 2 
Number is: 3 
Number is: 4 
Number is: 5

2) While Loop in php

if the while loop condition is true then executes a block. Other wise sikp it.

Syntax

 	while(condition){  
 	//code to be executed  
 }  
 

PHP While Loop Flowchart

Example :-

<!DOCTYPE html>
<html>
<body>

<?php 
$x = 1; 

while($x <= 5) {
    echo "The number is: $x <br>";
    $x++;
} 
?>

</body>
</html>
 

Output

The number is: 1 
The number is: 2 
The number is: 3 
The number is: 4 
The number is: 5

3) do...while Loop in PHP

do...while loop will always execute the block of code once it will check the condition, and repeat the loop while the specified condition is true.

Syntax:

do
{
execute the statements;
} 
while (condition is true)
 

Output

Example :-

<!DOCTYPE html>
<html>
<body>

<?php 
$x = 1;

do {
    echo "The number is: $x <br>";
    $x++;
} while ($x <= 4);
?>

</body>
</html>
 

4) foreach Loop in PHP

only works on arrays and is used to loop through each key/value pair in an array.

Syntax

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

<!DOCTYPE html>
<html>
<body>

<?php  
$colors = array("java", "php", "html", "css"); 

foreach ($colors as $value) {
  echo "$value <br>";
}
?>  

</body>
</html>
 

Output

java 
php 
html 
css

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Loops Statement in PHP

Types of Loops in PHP

1) For Loop in PHP

Flowchart

Example :-

2) While Loop in php

PHP While Loop Flowchart

Example :-

3) do...while Loop in PHP

Example :-

4) foreach Loop in PHP