An object is an instance of a class. It is simply a specimen of a class and has memory allocated. Array is the data structure that stores one or more similar type of values in a single name but associative array is different from a simple PHP array. An array which contains string index is called associative array. It stores element values in association with key values rather than in linear index order.
Method 1: Using json_decode and json_encode method: The json_decode function accepts JSON encoded string and converts it into a PHP variable on the other hand json_encode returns a JSON encoded string for a given value.
Syntax:
$myArray = json_decode(json_encode($object), true);
Example:
php
<?php class sample { /* Member variables */ var $var1; var $var2; function __construct( $par1, $par2 ) { $this->var1 = $par1; $this->var2 = $par2; } } // Creating the object $myObj = new sample(1000, "second"); echo "Before conversion: \n"; var_dump($myObj); // Converting object to associative array $myArray = json_decode(json_encode($myObj), true); echo "After conversion: \n"; var_dump($myArray); ?> |
Before conversion:
object(sample)#1 (2) {
["var1"]=>
int(1000)
["var2"]=>
string(6) "second"
}
After conversion:
array(2) {
["var1"]=>
int(1000)
["var2"]=>
string(6) "second"
}
Method 2: Type Casting object to an array: Typecasting is the way to utilize one data type variable into the different data type and it is simply the explicit conversion of a data type. It can convert a PHP object to an array by using typecasting rules supported in PHP.
Syntax:
$myArray = (array) $myObj;
Example:
php
<?php class bag { /* Member variables */ var $item1; var $item2; var $item3; function __construct( $par1, $par2, $par3) { $this->item1 = $par1; $this->item2 = $par2; $this->item3 = $par3; } } // Create myBag object $myBag = new bag("Mobile", "Charger", "Cable"); echo "Before conversion : \n"; var_dump($myBag); // Converting object to an array $myBagArray = (array)$myBag; echo "After conversion : \n"; var_dump($myBagArray); ?> |
Before conversion :
object(bag)#1 (3) {
["item1"]=>
string(6) "Mobile"
["item2"]=>
string(7) "Charger"
["item3"]=>
string(5) "Cable"
}
After conversion :
array(3) {
["item1"]=>
string(6) "Mobile"
["item2"]=>
string(7) "Charger"
["item3"]=>
string(5) "Cable"
}
PHP is a server-side scripting language designed specifically for web development. You can learn PHP from the ground up by following this PHP Tutorial and PHP Examples.
