A detailed explanation of the difference between while and Do...while in PHP

For the purposes of this tutorial, the difference between do and while for a circular statement commonly used in PHP programming is to do when the condition is true and do is executed at least, so let's take a look at

do {}while (conditional)

Look at the instance of Do while.

<? $a =10;do {echo $a;} while ($a >11)

This will output 10, and then the loop terminates, so let's take a look at the instance of while.

$a =10;while ($a >11) {echo $a;}

There will be no output, now you know what it means.