The idea of a loop is to do something over and over again until the task has been completed.
In PHP, we have the following looping statements:

* while - loops through a block of code while a specified condition is true
* do...while - loops through a block of code once, and then repeats the loop as long as a 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

The while loop executes a block of code while a condition is true.