freeCodeCamp/guide/english/miscellaneous/learn-about-php-loops/index.md

---
title: Learn About Php Loops
---
Loops are blocks of code that execute a specified number of times. Using loops reduces the number of lines of code.

PHP works with 4 different types of loops:

*   While loop
*   Do...while loop
*   For loop
*   Foreach loop

## While loop

The `while` loop continues to excecute as long as the specified condition is true.

`php  
<?php  
while(condition is true)  
{  
execute code;  
}  
?>  

    Example:
    ```php
    <?php  
      $x = 1;
       while($x <= 3) 
       { 
         echo "x=$x ";
         $x++;
       } 
    ?>
    ```
    ```
    Output: 
     x=1 x=2 x=3
    ```

    ## Do...while loop

    In the `do...while` loop the block of code is executed before the condition is checked.

      ```php
    <?php
         do {
           execute code;
         } while (condition);
    ?>
    ```
    Example:

      ```php
    <?php
    $x= 1;
         do {
           echo "x=$x ";
           $x++;
         } while ($x < 5);
    ?>
    ```
    ```
    Output: 
     x=1 x=2 x=3 x=4
    ```

    ## For loop

    The `for` loop is used when the number of times the block is to be executed is known in advance.

      ```php
    <?php
         for (variable initialisation; test condition; increment)
         { 
           execute code; 
         }
    ?>
    ```
    Example:

      ```php
    <?php
        for ($x=1 ; $x <= 4 ; $x++)
        {
          echo "x= $x "; 
        }
    ?>
    ```
    ```
    Output:
     x=1 x=2 x=3 x=4
    ```

    ## Foreach loop

    The `foreach` loop helps in traversing through arrays. 

      ```php
    <?php
        foreach ($array as $value)
        { 
          executable code; 
        }
    ?>
    ```
    Example:

      ```php
    <?php
     $numbers= array("One", "Two", "Three"); 
       foreach ($numbers as $value)
       {
         echo "$value ";
       }
    ?>
    ```
    ```
    Output:
     One Two Three