Do while Loop in PHP
The do while loop executes a block of statements once, it then checks the condition and repeats the loop as long as the specified condition is true. In doing while loop the condition is checked after executing a statement. It means that when its first time of the loop,then do while loop will execute its statement at least once, even if the condition is false.
Flowchart of Do While Loop
Example of Do while loop.
An example program to demonstrate the Do while loop.
<?php
$x=7;
do
{
echo "value is :$x<br>";
$x++;
}
while($x<=6)
?>
Output
value is: 7
|
Code in PHP |
Explanation |
| <?php | PHP opening. |
| $x=7; | Variable is initialized with value 7. |
| do | do is the keyword |
| { | Starting the loop. |
| echo “value is :$x<br>”; | Statement within loop that will executes and print the value. |
| $x++; | Value of variable is incremented by 1 and loop will repeats the execution of statements until the condition remains true. |
| } | Ending of loop |
| while($x<=6) | Here the condition is checked |
| ?> | Closing tag. |
Comparison of do While Loop in PHP VS C++
| Code in PHP | Same code in C++ |
| <?php | |
| $x=7; | int x=7; |
| do | do |
| { | |
| echo “value is :$x<br>”; | cout <<”value is :”<<x<<endl; |
| $x++; | x++; |
| } | |
| while($x<=6) | while(x<=6) |
| ?> |