The for loop repeatedly executes a block of code as long as a certain condition is met. It is used mostly to execute a block of code for certain number of times.
The following is the syntax for the PHP for loop:
for (init counter; test counter; increment counter) {
code to be executed for each iteration;
}
An example of a for loop that outputs the numbers from 0 to 10:
<?php
for ($i = 0; $i <= 10; $i++) {
echo "The number is: $i <br>";
}
Exercise
Using the for loop print the numbers from 5 to 1 (decreasing order).
<?php
$var = 123;
<?php
for ($i = 5; $i >= 1; $i--) {
echo $i . "<br>";
}
{
"test_output_contains":[
{
"expected":"5",
"error_message":"Please read the instructions again."
},
{
"expected":"4",
"error_message":"Please read the instructions again."
},
{
"expected":"3",
"error_message":"Please read the instructions again."
},
{
"expected":"2",
"error_message":"Please read the instructions again."
},
{
"expected":"1",
"error_message":"Please read the instructions again."
}
],
"success_message":"Good job!",
"error_message":"Please read the instructions again."
}