Adjusted indentation and code syntax (#34819)

The section titles were in the code examples and it was hard to distinguish the sections from each other.

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

@@ -14,107 +14,105 @@ PHP works with 4 different types of loops:
 
 The `while` loop continues to excecute as long as the specified condition is true.
 
-`php  
+```php
 <?php  
-while(condition is true)  
+    while(condition is true)  
-{  
+    {  
-execute code;  
+        execute code;  
-}  
+    }  
 ?>  
-
+```
-    Example:
+Example:
-    ```php
+```php
-    <?php  
+<?php  
     $x = 1;
     while($x <= 3) 
     { 
         echo "x=$x ";
         $x++;
     } 
-    ?>
+?>
-    ```
+```
-    ```
+Output:
-    Output: 
+```php
     x=1 x=2 x=3
-    ```
+```
    
-    ## Do...while loop
+## Do...while loop
 
-    In the `do...while` loop the block of code is executed before the condition is checked.
+In the `do...while` loop the block of code is executed before the condition is checked.
 
-      ```php
+```php
-    <?php
+<?php
     do {
         execute code;
     } while (condition);
-    ?>
+?>
-    ```
+```
-    Example:
+Example:
-
+```php
-      ```php
+<?php
-    <?php
     $x= 1;
     do {
         echo "x=$x ";
         $x++;
     } while ($x < 5);
-    ?>
+?>
-    ```
+```
-    ```
+Output:
-    Output: 
+```php
     x=1 x=2 x=3 x=4
-    ```
+```
 
-    ## For loop
+## For loop
 
-    The `for` loop is used when the number of times the block is to be executed is known in advance.
+The `for` loop is used when the number of times the block is to be executed is known in advance.
 
-      ```php
+```php
-    <?php
+<?php
     for (variable initialisation; test condition; increment)
     { 
         execute code; 
     }
-    ?>
+?>
-    ```
+```
-    Example:
+Example:
-
+```php
-      ```php
+<?php
-    <?php
     for ($x=1 ; $x <= 4 ; $x++)
     {
         echo "x= $x "; 
     }
-    ?>
+?>
-    ```
+```
-    ```
+Output:
-    Output:
+```php
     x=1 x=2 x=3 x=4
-    ```
+```
 
-    ## Foreach loop
+## Foreach loop
 
-    The `foreach` loop helps in traversing through arrays. 
+The `foreach` loop helps in traversing through arrays. 
 
-      ```php
+```php
-    <?php
+<?php
     foreach ($array as $value)
     { 
         executable code; 
     }
-    ?>
+?>
-    ```
+```
-    Example:
+Example
-
+```php
-      ```php
+<?php
-    <?php
     $numbers= array("One", "Two", "Three"); 
     foreach ($numbers as $value)
     {
         echo "$value ";
     }
  ?>
-    ```
+```
-    ```
+Output:
-    Output:
+```php
      One Two Three
+```