How to create an array with objects in php











up vote
0
down vote

favorite
1












I want to have an array with objects. For example.



public $aCarObjects = array();
$aCars = array('Audi','BMW','Ford');

foreach($aCars as $car){
array_push($aCarObjects, new Car($car));
}

// Simplified class
class Car implements C{
private $carName;

public function __construct($carName){
$this->carName = $carName;
}
}
interface C {}


This is a very shortened version of what I am trying. The class Car contains some info about the car.



When I am using the Interface C in the Car class. I cannot add objects to the array. Why is that so?










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  • I found something that might help you -> clik Even it's same example
    – SilvioCro
    Nov 19 at 22:35








  • 2




    Yes, you can use "new" inside array_push. A shorthand version (just a simpler syntax) is $aCarObjects = new Car($car);
    – Jeff
    Nov 19 at 22:37












  • Is there anything wrong with your code? Anything not working as expected?
    – Jeff
    Nov 19 at 22:38






  • 1




    @Jeff array_push isn't the same as $array - it only does the same thing in most cases
    – Philipp
    Nov 19 at 22:40






  • 2




    Use modern syntax: $arrray replace array_push($array) since at least 4 years! It hurt to see
    – Cryptopat
    Nov 19 at 22:46















up vote
0
down vote

favorite
1












I want to have an array with objects. For example.



public $aCarObjects = array();
$aCars = array('Audi','BMW','Ford');

foreach($aCars as $car){
array_push($aCarObjects, new Car($car));
}

// Simplified class
class Car implements C{
private $carName;

public function __construct($carName){
$this->carName = $carName;
}
}
interface C {}


This is a very shortened version of what I am trying. The class Car contains some info about the car.



When I am using the Interface C in the Car class. I cannot add objects to the array. Why is that so?










share|improve this question
























  • I found something that might help you -> clik Even it's same example
    – SilvioCro
    Nov 19 at 22:35








  • 2




    Yes, you can use "new" inside array_push. A shorthand version (just a simpler syntax) is $aCarObjects = new Car($car);
    – Jeff
    Nov 19 at 22:37












  • Is there anything wrong with your code? Anything not working as expected?
    – Jeff
    Nov 19 at 22:38






  • 1




    @Jeff array_push isn't the same as $array - it only does the same thing in most cases
    – Philipp
    Nov 19 at 22:40






  • 2




    Use modern syntax: $arrray replace array_push($array) since at least 4 years! It hurt to see
    – Cryptopat
    Nov 19 at 22:46













up vote
0
down vote

favorite
1









up vote
0
down vote

favorite
1






1





I want to have an array with objects. For example.



public $aCarObjects = array();
$aCars = array('Audi','BMW','Ford');

foreach($aCars as $car){
array_push($aCarObjects, new Car($car));
}

// Simplified class
class Car implements C{
private $carName;

public function __construct($carName){
$this->carName = $carName;
}
}
interface C {}


This is a very shortened version of what I am trying. The class Car contains some info about the car.



When I am using the Interface C in the Car class. I cannot add objects to the array. Why is that so?










share|improve this question















I want to have an array with objects. For example.



public $aCarObjects = array();
$aCars = array('Audi','BMW','Ford');

foreach($aCars as $car){
array_push($aCarObjects, new Car($car));
}

// Simplified class
class Car implements C{
private $carName;

public function __construct($carName){
$this->carName = $carName;
}
}
interface C {}


This is a very shortened version of what I am trying. The class Car contains some info about the car.



When I am using the Interface C in the Car class. I cannot add objects to the array. Why is that so?







php arrays oop object






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 19 at 22:54

























asked Nov 19 at 22:31









Jake

3511




3511












  • I found something that might help you -> clik Even it's same example
    – SilvioCro
    Nov 19 at 22:35








  • 2




    Yes, you can use "new" inside array_push. A shorthand version (just a simpler syntax) is $aCarObjects = new Car($car);
    – Jeff
    Nov 19 at 22:37












  • Is there anything wrong with your code? Anything not working as expected?
    – Jeff
    Nov 19 at 22:38






  • 1




    @Jeff array_push isn't the same as $array - it only does the same thing in most cases
    – Philipp
    Nov 19 at 22:40






  • 2




    Use modern syntax: $arrray replace array_push($array) since at least 4 years! It hurt to see
    – Cryptopat
    Nov 19 at 22:46


















  • I found something that might help you -> clik Even it's same example
    – SilvioCro
    Nov 19 at 22:35








  • 2




    Yes, you can use "new" inside array_push. A shorthand version (just a simpler syntax) is $aCarObjects = new Car($car);
    – Jeff
    Nov 19 at 22:37












  • Is there anything wrong with your code? Anything not working as expected?
    – Jeff
    Nov 19 at 22:38






  • 1




    @Jeff array_push isn't the same as $array - it only does the same thing in most cases
    – Philipp
    Nov 19 at 22:40






  • 2




    Use modern syntax: $arrray replace array_push($array) since at least 4 years! It hurt to see
    – Cryptopat
    Nov 19 at 22:46
















I found something that might help you -> clik Even it's same example
– SilvioCro
Nov 19 at 22:35






I found something that might help you -> clik Even it's same example
– SilvioCro
Nov 19 at 22:35






2




2




Yes, you can use "new" inside array_push. A shorthand version (just a simpler syntax) is $aCarObjects = new Car($car);
– Jeff
Nov 19 at 22:37






Yes, you can use "new" inside array_push. A shorthand version (just a simpler syntax) is $aCarObjects = new Car($car);
– Jeff
Nov 19 at 22:37














Is there anything wrong with your code? Anything not working as expected?
– Jeff
Nov 19 at 22:38




Is there anything wrong with your code? Anything not working as expected?
– Jeff
Nov 19 at 22:38




1




1




@Jeff array_push isn't the same as $array - it only does the same thing in most cases
– Philipp
Nov 19 at 22:40




@Jeff array_push isn't the same as $array - it only does the same thing in most cases
– Philipp
Nov 19 at 22:40




2




2




Use modern syntax: $arrray replace array_push($array) since at least 4 years! It hurt to see
– Cryptopat
Nov 19 at 22:46




Use modern syntax: $arrray replace array_push($array) since at least 4 years! It hurt to see
– Cryptopat
Nov 19 at 22:46












1 Answer
1






active

oldest

votes

















up vote
2
down vote



accepted










This error has nothing to do with arrays, it's a class hoisting bug (feature?) which is fixed by moving your class definition above the call to new Car. Apparently, PHP does not hoist class definitions if they implement an interface.



Here's a minimal example of the phenomenon.



Works:



new Foo();
class Foo {}
interface Bar {}


Doesn't:



new Foo(); # <-- error: Class 'Foo' not found
class Foo implements Bar {}
interface Bar {}


Perhaps this is a candidate for PHP Sadness?



Here's a working version of your code that also addresses a stray public keyword in line 1:



interface C {}

class Car implements C {
private $carName;

public function __construct($carName) {
$this->carName = $carName;
}
}

$aCarObjects = ;
$aCars = ['Audi', 'BMW', 'Ford'];

foreach ($aCars as $car) {
array_push($aCarObjects, new Car($car));
}

print_r($aCarObjects);


Output:



Array
(
[0] => Car Object
(
[carName:Car:private] => Audi
)

[1] => Car Object
(
[carName:Car:private] => BMW
)

[2] => Car Object
(
[carName:Car:private] => Ford
)

)


Try it!






share|improve this answer























  • Thanks for the comment. The construct part was a typo the other things are nice to know. My problem is the interface, which I did not mention.
    – Jake
    Nov 19 at 22:58






  • 1




    The issue is that you've declared the class after the call to new Car. Move the class definition to the top of your file; it's not hoisted if it implements an interface, which is pretty strange.
    – ggorlen
    Nov 19 at 23:18






  • 1




    That was really it! Thanks so much for all the answers!
    – Jake
    Nov 21 at 20:48











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
2
down vote



accepted










This error has nothing to do with arrays, it's a class hoisting bug (feature?) which is fixed by moving your class definition above the call to new Car. Apparently, PHP does not hoist class definitions if they implement an interface.



Here's a minimal example of the phenomenon.



Works:



new Foo();
class Foo {}
interface Bar {}


Doesn't:



new Foo(); # <-- error: Class 'Foo' not found
class Foo implements Bar {}
interface Bar {}


Perhaps this is a candidate for PHP Sadness?



Here's a working version of your code that also addresses a stray public keyword in line 1:



interface C {}

class Car implements C {
private $carName;

public function __construct($carName) {
$this->carName = $carName;
}
}

$aCarObjects = ;
$aCars = ['Audi', 'BMW', 'Ford'];

foreach ($aCars as $car) {
array_push($aCarObjects, new Car($car));
}

print_r($aCarObjects);


Output:



Array
(
[0] => Car Object
(
[carName:Car:private] => Audi
)

[1] => Car Object
(
[carName:Car:private] => BMW
)

[2] => Car Object
(
[carName:Car:private] => Ford
)

)


Try it!






share|improve this answer























  • Thanks for the comment. The construct part was a typo the other things are nice to know. My problem is the interface, which I did not mention.
    – Jake
    Nov 19 at 22:58






  • 1




    The issue is that you've declared the class after the call to new Car. Move the class definition to the top of your file; it's not hoisted if it implements an interface, which is pretty strange.
    – ggorlen
    Nov 19 at 23:18






  • 1




    That was really it! Thanks so much for all the answers!
    – Jake
    Nov 21 at 20:48















up vote
2
down vote



accepted










This error has nothing to do with arrays, it's a class hoisting bug (feature?) which is fixed by moving your class definition above the call to new Car. Apparently, PHP does not hoist class definitions if they implement an interface.



Here's a minimal example of the phenomenon.



Works:



new Foo();
class Foo {}
interface Bar {}


Doesn't:



new Foo(); # <-- error: Class 'Foo' not found
class Foo implements Bar {}
interface Bar {}


Perhaps this is a candidate for PHP Sadness?



Here's a working version of your code that also addresses a stray public keyword in line 1:



interface C {}

class Car implements C {
private $carName;

public function __construct($carName) {
$this->carName = $carName;
}
}

$aCarObjects = ;
$aCars = ['Audi', 'BMW', 'Ford'];

foreach ($aCars as $car) {
array_push($aCarObjects, new Car($car));
}

print_r($aCarObjects);


Output:



Array
(
[0] => Car Object
(
[carName:Car:private] => Audi
)

[1] => Car Object
(
[carName:Car:private] => BMW
)

[2] => Car Object
(
[carName:Car:private] => Ford
)

)


Try it!






share|improve this answer























  • Thanks for the comment. The construct part was a typo the other things are nice to know. My problem is the interface, which I did not mention.
    – Jake
    Nov 19 at 22:58






  • 1




    The issue is that you've declared the class after the call to new Car. Move the class definition to the top of your file; it's not hoisted if it implements an interface, which is pretty strange.
    – ggorlen
    Nov 19 at 23:18






  • 1




    That was really it! Thanks so much for all the answers!
    – Jake
    Nov 21 at 20:48













up vote
2
down vote



accepted







up vote
2
down vote



accepted






This error has nothing to do with arrays, it's a class hoisting bug (feature?) which is fixed by moving your class definition above the call to new Car. Apparently, PHP does not hoist class definitions if they implement an interface.



Here's a minimal example of the phenomenon.



Works:



new Foo();
class Foo {}
interface Bar {}


Doesn't:



new Foo(); # <-- error: Class 'Foo' not found
class Foo implements Bar {}
interface Bar {}


Perhaps this is a candidate for PHP Sadness?



Here's a working version of your code that also addresses a stray public keyword in line 1:



interface C {}

class Car implements C {
private $carName;

public function __construct($carName) {
$this->carName = $carName;
}
}

$aCarObjects = ;
$aCars = ['Audi', 'BMW', 'Ford'];

foreach ($aCars as $car) {
array_push($aCarObjects, new Car($car));
}

print_r($aCarObjects);


Output:



Array
(
[0] => Car Object
(
[carName:Car:private] => Audi
)

[1] => Car Object
(
[carName:Car:private] => BMW
)

[2] => Car Object
(
[carName:Car:private] => Ford
)

)


Try it!






share|improve this answer














This error has nothing to do with arrays, it's a class hoisting bug (feature?) which is fixed by moving your class definition above the call to new Car. Apparently, PHP does not hoist class definitions if they implement an interface.



Here's a minimal example of the phenomenon.



Works:



new Foo();
class Foo {}
interface Bar {}


Doesn't:



new Foo(); # <-- error: Class 'Foo' not found
class Foo implements Bar {}
interface Bar {}


Perhaps this is a candidate for PHP Sadness?



Here's a working version of your code that also addresses a stray public keyword in line 1:



interface C {}

class Car implements C {
private $carName;

public function __construct($carName) {
$this->carName = $carName;
}
}

$aCarObjects = ;
$aCars = ['Audi', 'BMW', 'Ford'];

foreach ($aCars as $car) {
array_push($aCarObjects, new Car($car));
}

print_r($aCarObjects);


Output:



Array
(
[0] => Car Object
(
[carName:Car:private] => Audi
)

[1] => Car Object
(
[carName:Car:private] => BMW
)

[2] => Car Object
(
[carName:Car:private] => Ford
)

)


Try it!







share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 19 at 23:23

























answered Nov 19 at 22:41









ggorlen

6,1763825




6,1763825












  • Thanks for the comment. The construct part was a typo the other things are nice to know. My problem is the interface, which I did not mention.
    – Jake
    Nov 19 at 22:58






  • 1




    The issue is that you've declared the class after the call to new Car. Move the class definition to the top of your file; it's not hoisted if it implements an interface, which is pretty strange.
    – ggorlen
    Nov 19 at 23:18






  • 1




    That was really it! Thanks so much for all the answers!
    – Jake
    Nov 21 at 20:48


















  • Thanks for the comment. The construct part was a typo the other things are nice to know. My problem is the interface, which I did not mention.
    – Jake
    Nov 19 at 22:58






  • 1




    The issue is that you've declared the class after the call to new Car. Move the class definition to the top of your file; it's not hoisted if it implements an interface, which is pretty strange.
    – ggorlen
    Nov 19 at 23:18






  • 1




    That was really it! Thanks so much for all the answers!
    – Jake
    Nov 21 at 20:48
















Thanks for the comment. The construct part was a typo the other things are nice to know. My problem is the interface, which I did not mention.
– Jake
Nov 19 at 22:58




Thanks for the comment. The construct part was a typo the other things are nice to know. My problem is the interface, which I did not mention.
– Jake
Nov 19 at 22:58




1




1




The issue is that you've declared the class after the call to new Car. Move the class definition to the top of your file; it's not hoisted if it implements an interface, which is pretty strange.
– ggorlen
Nov 19 at 23:18




The issue is that you've declared the class after the call to new Car. Move the class definition to the top of your file; it's not hoisted if it implements an interface, which is pretty strange.
– ggorlen
Nov 19 at 23:18




1




1




That was really it! Thanks so much for all the answers!
– Jake
Nov 21 at 20:48




That was really it! Thanks so much for all the answers!
– Jake
Nov 21 at 20:48


















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