Detailed explanation of the difference between while and do...while in php

This tutorial will talk about the difference between do while and while loop statements commonly used in PHP programming. While is executed when the condition is true, while do while will be executed at least once. Let’s take a look

do {
}while(条件)

Look at the example of do while.

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

10 will be output here; and then the loop will terminate, so let’s take a look at the while instance.

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

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

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