The PHP while Loop
The while loop repeatedly executes a block of code as long as the specified condition is true.
The syntax for the while loop is as follows:
while (condition is true) {
code to be executed;
}
Below is an example of the while loop. The code outputs the numbers from 1 to 10.
<?php
$i = 1;
while($i <= 10) {
echo " $i <br>";
$i++;
}
Exercise
Using the while loop print the numbers from 5 to 1 (decreasing order).
<?php
$var = 123;
<?php
$i = 5;
while($i >= 1) {
echo " $i <br>";
$i--;
}
{
"test_output_contains":
[
{
"expected":"5",
"error_message":"Sorry. Please try again."
},
{
"expected":"4",
"error_message":"Sorry. Please try again."
},
{
"expected":"3",
"error_message":"Sorry. Please try again."
},
{
"expected":"2",
"error_message":"Sorry. Please try again."
},
{
"expected":"1",
"error_message":"Sorry. Please try again."
}
],
"success_message":"Good job!",
"error_message":"Please read the instructions again."
}