<?php
function calculateSum($a, $b) {
if($a > 0 && $b > 0){
return $a + $b;
}else{
return 0;
}
}
$num1 = 10;
$num2 = 20;
echo "Sum: " . calculateSum($num1, $num2);
// 这是单行注释
/* 这是
多行注释 */
$array = [1,2,3,4];
foreach($array as $item){
echo $item . "\n";
}
?>