Choose Echo or dump based on the type of variable in PHP

At this point, the is_scalar built-in function comes in handy.

Is_scalar--detects if a variable is a scalar

Scalar variables are variables that contain an integer, float, String, or Boolean, while array, object, and resource are not scalars.

Copy the code code as follows:
<?php
function Show_var ($var) {
if (Is_scalar ($var)) {
Echo $var;
} else {
Var_dump ($var);
}
}
$pi = 3.1416;
$proteins = Array ("Hemoglobin", "cytochrome c oxidase", "ferredoxin");

Show_var ($PI);
Printed: 3.1416

Show_var ($proteins)
Print:
Array (3) {
[0]=>
String (Ten) "hemoglobin"
[1]=>
String ("cytochrome c oxidase")
[2]=>
String (Ten) "Ferredoxin"
// }
?>

