পিএইচপি ফাংশন

<?php

function message() {
    echo "হ্যালো বিশ্ব";
}

message();

?>

<?php

function message() {
    echo "হ্যালো বিশ্ব";
}

message();

?>

<?php

function message() {
    return "হ্যালো বিশ্ব";
}

echo message();

?>

<?php

function message() {
    return "হ্যালো বিশ্ব";
}

echo message();

?>

<?php

$message = function() {
    echo "হ্যালো বিশ্ব";
};

$message();

?>

<?php

$message = fn($text) => $text;

echo $message("হ্যালো বিশ্ব");

?>

<?php

function user($name, $land) {
    return "$name - $land";
}

echo user("আরিফ", "বাংলাদেশ");

?>

<?php

function user($name, $land) {
    return "$name - $land";
}

echo user("আরিফ", "বাংলাদেশ");

?>

<?php

function user($name, $land = "বাংলাদেশ") {
    return "$name - $land";
}

echo user("আরিফ");

?>

<?php

function reference(&$number): void {
    $number = 123456;
}

echo reference(100);

?>

<?php

function sum(...$numbers) {
    return array_sum($numbers);
}

echo sum(10, 15, 10, 25);

?>

<?php

function sum($a, $b, $c, $d) {
    return $a + $b + $c + $d;
}

$numbers = [10, 15, 10, 25];

echo sum(...$numbers);

?>

<?php

function user($name, $land) {
    echo "$name - $land";
}

user(name: "নাম", land: "দেশ");

?>

<?php

$text = "হ্যালো বিশ্ব";

$message = function () use ($text) {
    return $text;
};

echo $message();

?>

<?php

function counter($number) {
    if ($number <= 0) {
        return;
    }

    echo "নাম্বার" . " " . $number . PHP_EOL;

    counter($number - 1);
}

counter(10);

?>

<?php

function outer() {

    function inner() {
        return "হ্যালো বিশ্ব";
    }

    return inner();
}

echo outer();

?>

<?php

$text = "হ্যালো বিশ্ব";

function message() {
    global $text;

    return $text;
}

echo message();

?>

<?php

function message() {
    return "হ্যালো বিশ্ব";
}

$function = "message";

echo $function();

?>

<?php

function message($text) {
    return $text;
}

function call(callable $call) {
    echo $call("হ্যালো বিশ্ব");
}

call("message");

?>

<?php

function addition($a, $b) {
    return $a + $b;
}

function subtraction($a, $b) {
    return $a - $b;
}

function calculate($callback, $a, $b) {
    return $callback($a, $b);
}

echo calculate("addition", 20, 10);
echo "
";
echo calculate("subtraction", 20, 10);

?>

<?php

function user(){
    return ["আরিফ", "বাংলাদেশ"];
}

[$name, $land] = user();

echo "$name - $land";

?>

<?php

function counting(){
    static $count = 0;

    $count++;

    echo $count . "
";
}

counting();
counting();
counting();

?>