تابع ‎is_scalar()‎‎ در PHP

<?php
$a = "Hello";
echo "a is " . is_scalar($a) . "<br>";

$b = 0;
echo "b is  " . is_scalar($b) . "<br>";

$c = 32;
echo "c is " . is_scalar($c) .  "<br>";

$d = NULL;
echo "d is " . is_scalar($d) . "<br>";

$e = array("red", "green", "blue");
echo "e is " . is_scalar($e) . "<br>";
?>
<?php
$a = "Hello";
echo "a is " . is_scalar($a) . "<br>";

$b = 0;
echo "b is  " . is_scalar($b) . "<br>";

$c = 32;
echo "c is " . is_scalar($c) .  "<br>";

$d = NULL;
echo "d is " . is_scalar($d) . "<br>";

$e = array("red", "green", "blue");
echo "e is " . is_scalar($e) . "<br>";
?>اجرای کد