PHP 7:

Adjust Example 4-1 to include gender information from the Do It in Chapter 3. Use a text box to receive information from the user. Try to use HTML5 to restrict the type of information the user can enter in the text box. Test you code.

Example 4-1. Lab.html:

Dog Object Creater

Please complete ALL fields. Please note the required format of information.

Your Dog's Name (max 20 characters, alphabetic)

Your Dog's Breed (max 35 characters, alphabetic)

Your Dog's Color (max 15 characters, alphabetic)

Your Dog's Weight (numeric only)

Please complete ALL fields. Please note the required format of information.

Your Dog's Name (max 20 characters, alphabetic)

Your Dog's Breed (max 35 characters, alphabetic)

Your Dog's Color (max 15 characters, alphabetic)

Your Dog's Weight (numeric only)

Do It in Chapter 3:

Lab.php:

Require_once("e312dog.php");

$lab = new Dog('Fred','Lab','Yellow','100');

list($name_error, $breed_error, $color_error, $weight_error) = explode(',', $lab);

print $name_error == 'TRUE' ? 'Name update successful
' : 'Name update not successful
';

print $breed_error == 'TRUE' ? 'Breed update successful
' : 'Breed update not successful
';

print $color_error == 'TRUE' ? 'Color update successful
' : 'Color update not successful
';

print $weight_error == 'TRUE' ? 'Weight update successful
' : 'Weight update not successful
';

// ------------------------------Set Properties--------------------------

$dog_error_message = $lab->set_dog_name('Sally');

print $dog_error_message == TRUE ? 'Name update successful
' : 'Name update not successful
';

$dog_error_message = $lab->set_dog_weight('5');

print $dog_error_message == TRUE ? 'Weight update successful
' : 'Weight update not successful
';

$dog_error_message = $lab->set_dog_breed('Labrador');

print $dog_error_message == TRUE ? 'Breed update successful
' : 'Breed update not successful
';

$dog_error_message = $lab->set_dog_color('Brown');

print $dog_error_message == TRUE ? 'Color update successful
' : 'Color update not successful
';

// ------------------------------Get Properties--------------------------

print $lab->get_dog_name() . "
";

print $lab->get_dog_weight() . "
";

print $lab->get_dog_breed() . "
";

print $lab->get_dog_color() . "
";

$dog_properties = $lab->get_properties();

list($dog_weight, $dog_breed, $dog_color) = explode(',', $dog_properties);

print "Dog weight is $dog_weight. Dog breed is $dog_breed. Dog color is $dog_color.";

?>

Dog.php:

class Dog

{

// ----------------------------------------- Properties -----------------------------------------

private $dog_weight = 0;

private $dog_breed = "no breed";

private $dog_color = "no color";

private $dog_name = "no name";

private $error_message = "??";

// ---------------------------------- Constructor ----------------------------------------------

function __construct($value1, $value2, $value3, $value4)

{

$name_error = $this->set_dog_name($value1) == TRUE ? 'TRUE,' : 'FALSE,';

$breed_error = $this->set_dog_breed($value2) == TRUE ? 'TRUE,' : 'FALSE,';

$color_error = $this->set_dog_color($value3) == TRUE ? 'TRUE,' : 'FALSE,';

$weight_error= $this->set_dog_weight($value4) == TRUE ? 'TRUE' : 'FALSE';

$this->error_message = $name_error . $breed_error . $color_error . $weight_error;

}

//------------------------------------toString--------------------------------------------------

public function __toString()

{

return $this->error_message;

}

// ---------------------------------- Set Methods ----------------------------------------------

function set_dog_name($value)

{

$error_message = TRUE;

(ctype_alpha($value) && strlen($value) <= 20) ? $this->dog_name = $value : $this->error_message = FALSE;

return $this->error_message;

}

function set_dog_weight($value)

{

$error_message = TRUE;

(ctype_digit($value) && ($value > 0 && $value <= 120)) ? $this->dog_weight = $value : $this->error_message = FALSE;

return $this->error_message;

}

function set_dog_breed($value)

{

$error_message = TRUE;

(ctype_alpha($value) && strlen($value) <= 35) ? $this->dog_breed = $value : $error_message = FALSE;

return $this->error_message;

}

function set_dog_color($value)

{

$error_message = TRUE;

(ctype_alpha($value) && strlen($value) <= 15) ? $this->dog_color = $value : $this->error_message = FALSE;

return $this->error_message;

}

// ----------------------------------------- Get Methods ------------------------------------------------------------

function get_dog_name()

{

return $this->dog_name;

}

function get_dog_weight()

{

return $this->dog_weight;

}

function get_dog_breed()

{

return $this->dog_breed;

}

function get_dog_color()

{

return $this->dog_color;

}

function get_properties()

{

return "$this->dog_weight,$this->dog_breed,$this->dog_color.";

}

}

?>