PHP Loops

ExamplePHP

<?php
for ($i = 1; $i <= 3; $i++) {
  echo "for $i\n";
}

$n = 3;
while ($n > 0) {
  echo "while $n\n";
  $n--;
}

$cars = ["Volvo", "BMW", "Ford"];
foreach ($cars as $car) {
  echo $car, "\n";
}

foreach (["a" => 1, "b" => 2] as $key => $value) {
  echo "$key=$value\n";
}

Output

for 1
for 2
for 3
while 3
while 2
while 1
Volvo
BMW
Ford
a=1
b=2

foreach is the loop you will use most in PHP: it walks through arrays and gives you the key as well when you ask for it.

Quick check

Which loop is made for walking through an array?

foreachwhilerepeat

Finish the quick check (and any code exercise) to complete this lesson, or mark it done yourself.

Tip: use the left and right arrow keys to move between lessons.