How to convert object into array in php

The method for PHP to convert object into an array is: 1. Use forced type conversion and add the target type "(array)" enclosed in parentheses before the variable to be converted; 2. Use "get_object_vars( )" function, returns an associative array composed of attributes defined in the object specified by obj.

The operating environment of this tutorial: windows10 system, php8.1.3 version, DELL G3 computer.

php method to convert object into an array

Method 1: Use forced type conversion-enclose it in parentheses before the variable to be converted The target type "(array)"

Example: object cast to array

class foo
{
function do_foo()
{
echo "Doing foo.";
}
}
$bar = new foo;
$bar->do_foo();
print_r((array)$bar);
?>

Output:

Doing foo.Array ( )

Extended information:

The PHP data types that allow conversion are:

(int), (integer): converted to integer

(float), (double), (real): converted to floating point type

(string): Convert to string

(bool), (boolean): Convert to Boolean type

(array): Convert to array

( object): Convert to object

Method 2: Use get_object_vars() function

get_object_vars — Returns an associative array composed of object attributes. Syntax format:

get_object_vars ( object $obj )

Returns an associative array composed of attributes defined in the object specified by obj.

Example:

class Point2D {
var $x, $y;
var $label;
function Point2D($x, $y)
{
$this->x = $x;
$this->y = $y;
}
function setLabel($label)
{
$this->label = $label;
}
function getPoint()
{
return array("x" => $this->x,
"y" => $this->y,
"label" => $this->label);
}
}
// "$label" is declared but not defined
$p1 = new Point2D(1.233, 3.445);
print_r(get_object_vars($p1));
$p1->setLabel("point #1");
print_r(get_object_vars($p1));
?>

Output:

Array
(
[x] => 1.233
[y] => 3.445
[label] =>
)
Array
(
[x] => 1.233
[y] => 3.445
[label] => point #1
)

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