Warning: 1 argument is missing

Question

Any idea why I am getting this error:

Warning: Missing argument 1 for person::__construct(), called in /home/fishbein/public_html/dev/OOP/index.php on line 5 and defined in /home/fishbein/public_html/dev/OOP/class_lib.php on line 6 Warning: Missing argument 1 for person::__construct(), called in /home/fishbein/public_html/dev/OOP/index.php on line 6 and defined in /home/fishbein/public_html/dev/OOP/class_lib.php on line 6 

With this code:

 <? class person { var $name; function __construct($persons_name) { $this->name = $persons_name; } function set_name($new_name) { $this->name = $new_name; } function get_name() { return $this->name; } } ?> 

I also use this in my index file:

 $tyler = new person("Tyler"); 

Answer 1

When you instantiated you did: $obj = new person(); instead of $obj = new person("joe");

Answer 2

 $persons_name = "" 

Set it as in the argument. But this is not a solution. You can delete the construct, create a new instance, and then set the name. If your somehow does not work.

Answer 3

You call the constructor without passing an argument. Perhaps you are doing something like $p = new person(); instead of $p = new person("theirName");

Answer 4

It seems: If the class name matches the function name, this warning is provided. If you call the function differently from the class name, it seems OK. You need to specify the arguments only when calling the function not in the class instance

Answer 5

Try this code

  function __construct($persons_name= NULL) { $this->name = $persons_name; } 

initialized internal construction method NULL.