How to convert object into array in php

php method to convert object into an array: 1. Use forced type conversion, the syntax "(array)Object variable"; 2. Use the get_object_vars() function, the syntax "get_object_vars (object variable)".

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

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

Example: object cast to array

<?php
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): Convert 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 the object properties An associative array composed of. Syntax format:

get_object_vars ( object $obj )

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

Example:

<?php
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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