The foreach loop works only on arrays, and is used to loop through each key/value pair in an array. Increment is automatic.
The syntax for the PHP foreach loop is:
foreach ($array as $value) {
code to be executed;
}
Here is an example of a foreach loop. It prints all the values of the array $colors.
<?php
$colors = array("red", "blue", "yellow");
foreach ($colors as $value) {
echo "$value <br>";
}
Another example of the foreach loop used on an array with key-value pairs:
<?php
$age = array("Mark" => "26", "Jeff" => "22", "Raymond" => "33");
foreach($age as $x => $val) {
echo "$x = $val <br>";
}
Exercise
Create an array named $cars with the following values: ("Volvo", "Volkswagen", "Toyota", "Ford"). Print the values of the array using the foreach loop.
<?php
$var = 123;
<?php
$cars = array("Volvo", "Volkswagen", "Toyota", "Ford");
foreach ($cars as $value) {
echo "$value <br>";
};
{
"test_output_contains":
[
{
"expected":"Volvo",
"error_message":"Sorry. Please try again."
},
{
"expected":"Volkswagen",
"error_message":"Sorry. Please try again."
},
{
"expected":"Toyota",
"error_message":"Sorry. Please try again."
},
{
"expected":"Ford",
"error_message":"Sorry. Please try again."
}
],
"test_variable_exists":
{
"object":"$cars",
"error_message":"Have you declared <code>$cars<\/code>?"
},
"success_message":"Good job!",
"error_message":"Please read the instructions again."
}