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npm view webpack versions --jsonphp what type of variable is it
echo gettype($var1)."\n";
echo gettype($var2)."\n";
echo gettype($var3)."\n";getttype php
gettype ( mixed $var ) : string
gettype ("SALUT") => string
gettype (2) => integer
...etc ...
"bool"
"integer"
"double"
"array"
"object"
"resource"
"NULL"
"unknown type"php data types
<?php
/*
Variables can store data of different types, and different data types can do different things.
PHP supports the following data types:
1) String
2) Integer
3) Float (floating point numbers - also called double)
4) Boolean
5) Array
6) Object
7) NULL
8) Resource
*/
// PHP String
$x = "Hello world!";
echo $x;
//PHP Integer
$x = 5985;
var_dump($x);
//PHP Float
$x = 10.365;
var_dump($x);
//PHP Boolean
$x = true;
$y = false;
//PHP Array
$cars = array("Volvo","BMW","Toyota");
var_dump($cars);
//PHP Object
class Car {
function Car() {
$this->model = "VW";
}
}
// create an object
$herbie = new Car();
// show object properties
echo $herbie->model;
//PHP NULL Value
$x = "Hello world!";
$x = null;
var_dump($x);
?>php define variable type
<?php
$foo = "5bar"; // string
$bar = true; // boolean
settype($foo, "integer"); // $foo is 5 (integer)
settype($bar, "string"); // $bar is "1" (string)
?>Copyright © 2021 Codeinu
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