[PHP] 함수

<?php
function test(){
    $a = 0;
    while ($a < 10){
        echo "hello";
        $a += 1;
    }
}

test();
?>

 

 

- return을 실행하면 함수가 종료된다.

<?php
function test2(){
    return "hello";
}

function test3(){
    return "PHP";
}

echo test2();
echo ',';
echo test3();
?>

 

<?php
function test4($num){
    return $num +1;
}

echo test4(1);
echo ',';
echo test4(2);
?>

 

<?php
function test5($num1,$num2){
    return $num1 + $num2;
}

echo test5(1,2);
?>