<?php
	/*
	--Created by Jopitan -- Simple string validator
	Regex Eg: 'naAd'
	
	n = Allow Spaces
	a = lowercase characters allowed
	A = uppercase characters allowed
	d = Allow digits
	s = Allow Special characters
	
	$min must be given if you want it to be required.
	
	Method will return false or true
	
	function sVal(FIELDNAME, INPUT, REGEX, MINCHR, MAXCHR, DETAILS);
	
	Eg:
	FIELDNAME = 'username'
	INPUT = 'mystring'
	REGEX = 'naAds'
	MINCHR = 5 (default: 0)
	MAXCHR = 10 (default: 0)
	DETAILS = 1 (default: 0)
	*/
	include("configuration.php");
	$__username1 = "jopitanX";
	$__username2 = "JoPiTaN";
	$__username3 = "Jop ItAn";
	$_validate1 = $_vdn->sVal('username', $__username1, 'a', 1); //returns false
	$_validate2 = $_vdn->sVal('username', $__username2, 'aA', 1, 0, 1); //returns array 'bool' => boolean true, 'str' => string '', 'min' => int 1, 'max' => int 0, 'rgx' => string '[a-zA-Z]', 'val' => string 'JoPiTaN'
	$_validate3 = $_vdn->sVal('username', $__username3, 'aAn'); //returns true
?>

<?php


	class Validation {
		
		private $regXstring = '';
		private $regReturn = '';
		
		private function rgx()
		{
			$this->regReturn = '[';
			if(strstr($this->regXstring, 'a')) { $this->regReturn .= 'a-z'; }
			if(strstr($this->regXstring, 'A')) { $this->regReturn .= 'A-Z'; }
			if(strstr($this->regXstring, 'd')) { $this->regReturn .= '0-9'; }
			if(strstr($this->regXstring, 'n')) { $this->regReturn .= '-\s'; }
			if(strstr($this->regXstring, 's')) { $this->regReturn .= '\/\^\.\$\|\(\)\[\]\*+?{},#@!&=%'; }
			$this->regReturn .= ']';
			
		}
		
		public function sVal($fieldName, $string='', $regex, $min=0, $max=0, $details=0)
		{
			$min = (int) $min;
			$max = (int) $max;
			if($min > $max && $max > 0) {
				die('$min var contains larger number then $max in method call');
			}
			$return = false;
			if($min > 0 && strlen($string) < $min) {
				$_detailString = 'The field \'' . $fieldName . '\' must atleast contain ' . $min . ' characters.';
			} elseif($max > 0 && strlen($string) > $max) {
				$_detailString = 'The field \'' . $fieldName . '\' exceeds the maximum allowed ' . $max . ' characters.';
			} else {
				$this->regXstring = $regex;
				$this->rgx();
				if(preg_match('/^' . $this->regReturn . '+$/', $string)) {
					$_detailString = '';
					$return = true;
				} else {
					$_detailString = 'The field \'' . $fieldName . '\' contains invalid characters.';
				}
			}
			if($details == 0) {
				return $return;
			} else {
				return array("bool" => $return, "str" => $_detailString, "min" => $min, "max" => $max, "rgx" => $this->regReturn, "val" => $string);
			}
		}
		
	}
	
?>