PHP Array Iteration Methods Explained

1. Loop through the array using a for loop.

$array = array("apple", "banana", "cherry");

for($i = 0; $i < count($array); $i++) {
    echo $array[$i] . "<br>";
}

1. Iterate through an array using a foreach loop.

$array = array("apple", "banana", "cherry");

foreach($array as $value) {
    echo $value . "<br>";
}

1. Traverse the array using a while loop.

$array = array("apple", "banana", "cherry");

$i = 0;
while($i < count($array)) {
    echo $array[$i] . "<br>";
    $i++;
}

1. Use the array_walk function to iterate through an array.

$array = array("apple", "banana", "cherry");

function printItem($item) {
    echo $item . "<br>";
}

array_walk($array, 'printItem');

1. Use the array_map function to iterate through an array.

$array = array("apple", "banana", "cherry");

function addBrackets($item) {
    return $item . "<br>";
}

$newArray = array_map('addBrackets', $array);
foreach($newArray as $value) {
    echo $value;
}