what is wrong here with part $9$: class Pet $\{$

public $name;

private $sound;

public $species;

public function $\_\_$construct$($$name, $sound$)\{$

$this$->$name $=$ $name;

$this$->$sound $=$ $sound;

$\}$

public function get$\_$name$()\{$

return $this$->$name;

$\}$

public function get$\_$species$()\{$

return $this$->$species;

$\}$

public function set$\_$species$($$species$)\{$

$this$->$species $=$ $species;

$\}$

public function speak$()\{$

return $this$->$sound;

$\}$

$\}$

$/*08$: Create three instances of the Pet

class. $pet$1,$ $pet$2,$ and $pet$3.$

$pet$1$ should be named "Spot" and makes the sound "Moo!"

$pet$2$ should be named "Lucky" and makes the sound "Bark!"

$pet$3$ should be named "Daisy" and makes the sound "Quack!"

Call the speak method for each Pet instance and output

the result.$*/$

$pet$1=$ new Pet$("$Spot$",$ "Moo!"$)$;

$pet$2=$ new Pet$("$Lucky$",$ "Bark!"$)$;

$pet$3=$ new Pet$("$Daisy$",$ "Quack!"$)$;

$/*09$: Use the set$\_$species method on each pet

instance from above.

$pet$1$ is a "Cow"

$pet$2$ is a "Dog"

$pet$3$ is a "Duck"

Afterwards, create a $petArray that contains

all $3$ pet instances.

Loop through the array in reverse order

and output the name value for each pet

object in the array on a new line.

Not sure about the reverse?

Look at the PHP docs.

$*/$

$pet$1->$set$\_$species$("$Cow$")$;

$pet$2->$set$\_$species$("$Dog$")$;

$pet$3->$set$\_$species$("$Duck$")$;

$petArray $=[$$pet$1,$ $pet$2,$ $pet$3]$;

foreach $($array$\_$reverse$($$petArray$)$ as $pet$)\{$

$\}$