Unknown Error in Script

[Perad]

My page loads the header but nothing more, I just made some changes and was hoping someone could point out my wrongs.

 

This is all going on within a class.

 

I created this function

 

	private function DatabaseProtect($unsafestring) {
	if (empty($_POST['$unsafestring'])) {
		$this->message = "Error 5001 - You didn't complete the form";
	} else {
		if (!get_magic_quotes_gpc())
		{	
			return mysql_escape_string($unsafestring);
		}
		return htmlentities($unsafestring);
	}
}

 

I then added it to this function and the page didn't load. What am i doing wrong?

 

	private function SQLAddBlog() {
	$blog_title = DatabaseProtect($_POST['blog_title']);
	$blog_meta = DatabaseProtect($_POST['blog_meta']);
	$blog_content = DatabaseProtect($_POST['blog_content']);

	$sql="INSERT INTO `blog` (blog_title , blog_meta , blog_content , blog_postdate)
		VALUES ( '$blog_title', '$blog_meta', '$blog_content', NOW() );";
	$result = mysql_query($sql);
	if (!$result) {
		$this->message = "There is a problem with your query :: ".mysql_error();
	} else {
		$this->message = "The article has been added";
	}
}

[MadTechie]

change

if (empty($_POST['$unsafestring'])) {

to

if (empty($unsafestring)) {