Add explanation about loops (#31343)

guide/english/php/loops/index.md

@@ -12,6 +12,18 @@ A loop will continue running until the defined condition returns `false`.
 
 You can type `php for` , `php while` or `php do while` to get more info on any of these.
 
+
+## PHP Loops
+Often when you write code, you want the same block of code to run over and over again in a row. Instead of adding several almost equal code-lines in a script, we can use loops to perform a task like this.
+
+In PHP, we have the following looping statements:
+
+while - loops through a block of code as long as the specified condition is true
+do...while - loops through a block of code once, and then repeats the loop as long as the specified condition is true
+for - loops through a block of code a specified number of times
+foreach - loops through a block of code for each element in an array
+
+
 ### More Information
 
 - <a href='https://secure.php.net/manual/control-structures.for.php' target='_blank' rel='nofollow'>PHP.net - For Loops</a>