gistfile1.txt

<?php

// FormHandler class which checks user input and does some preformatting. It is called by the DataHandler class.

class FormHandler {
	
	// Function to performat and check user inputs
	public function preProcessor($stringField, $stringValue, $trim, $stripTags, $removeAllWhitespaces, $required, $email, $minLength, $maxLength, $minValue, $maxValue, $alphaOnly, $numericOnly, $alphaAndNumericOnly) {
		
		// *** FORMATTING *** //
		
		// Remove whitespaces from the beginning and the end
		if($trim == 1) { $stringValue = trim($stringValue); }
		
		// Strip HTML Tags
		if($stripTags == 1) { $stringValue = strip_tags($stringValue); }
		
		// Remove all whitespaces
		if($removeAllWhitespaces == 1) { $stringValue = str_replace(" ", "", $stringValue); }
		
		// *** INPUT CHECKS *** //
		
		$error = false;
		
		// Input is required
		if($required == 1) { if(empty($stringValue)) { $error = true; $message = $this->getLangHandler()->translate("Eingabe erforderlich:")." ".$stringField; }}
		
		if ($email == 1) { if(preg_match("/^([.0-9a-z_-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,4})+$/i", $stringValue)) { $error = true; $message = translate("Falsches Format:")." ".$stringField; }}
		
		// email, alpha, nummeric, both -> dann mit if, else if, else if oder ähnlich, damit sich das nicht in die quere kommt
		
		// *** DATABASE CHECKS *** //
		// unique : ggf. direkt im datahandler.php einbauen
		

		// If an error occured, we send back an error message instead of the user input. the db array is check against any "Error:" in a loop in the DataHandler.php
		if ($error == true) { $stringValue = "ErrorTag001: ".$message; }
		
							
		return $stringValue;
		
	}
	
// Function to create a new object of the LanguageHandler class. 
	private function getLangHandler() {	
		return new LangHandler();	
	}	


}

?>