🔴 Advanced · Lesson 28

Array Functions

Powerful Array Functions

PHP has built-in functions to transform arrays without writing loops — making code shorter and cleaner.

$nums = [1, 2, 3];
$squared = array_map(fn($n) => $n * $n, $nums);
print_r($squared);  // [1, 4, 9]

$nums = [1, 2, 3, 4, 5, 6];
$even = array_filter($nums, fn($n) => $n % 2 == 0);
print_r($even);  // [2, 4, 6]

$nums = [1, 2, 3, 4];
$sum = array_reduce($nums, fn($carry, $n) => $carry + $n, 0);
echo $sum;  // 10

PHP में arrays को बिना loops लिखे transform करने के built-in functions हैं — code छोटा और साफ बनाते हैं।

$nums = [1, 2, 3];
$squared = array_map(fn($n) => $n * $n, $nums);
print_r($squared);  // [1, 4, 9]

$nums = [1, 2, 3, 4, 5, 6];
$even = array_filter($nums, fn($n) => $n % 2 == 0);
print_r($even);  // [2, 4, 6]

$nums = [1, 2, 3, 4];
$sum = array_reduce($nums, fn($carry, $n) => $carry + $n, 0);
echo $sum;  // 10

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