validatie-klasse

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<?php
/**
 * Validator Class
 * Clean's input.
 * Validates input.
 *
 * @author Thijs Damen
 * @version 0.1
 *
 */


Class Validator {
    
    private $m_aCleanVars;
    private $m_aErrors;
    
    public function __construct() {
        $this->m_aCleanVars = array();
        $this->m_aErrors = array();
    }


    /**
     * Function clean
     * **Warning** This function cleans the input. makes sure var. types are set correctly. It does not however validate the input.
     * Use function Validate() for that.
     *
     * @param array $p_aUncleanVars
     * @return array $m_aCleanVars
     */

    
    public function clean($p_aUncleanVars) {
        foreach ($p_aUncleanVars as $aData) {
            switch ($aData[0]) {
                case
"type_int":
                    $aData[1] = intval($aData[1]);
                    break;
                case
"type_uint":
                    (
$aData[1] = intval($aData[1])) < 0 ? 0 : $aData[1];
                                        break;
                case
"type_num":
                    $aData[1] = strval($aData[1]) + 0;
                                         break;
                case
"type_unum":
                    $aData[1] = strval($aData[1]) + 0;
                    $aData[1] = ($aData[1] < 0) ? 0 : $aData[1];
                                        break;
                case
"type_str":
                    $aData[1] = trim(strval($aData[1]));
                    break;
                case
"type_bool":
                    $aData[1] = (bool) $aData[1];
                    break;
                case
"type_array":
                    $aData[1] = (is_array($aData[1])) ? $aData[1] : array();
                    break;
                case
"type_nohtml":
                    $aData[1] = htmlspecialchars(trim(strval($aData[1])));
                    break;
            }

            $this->m_aCleanVars[$aData[2]] = $aData[1];
        }

        return $this->m_aCleanVars;
    }

    
    /**
     * Function validate
     * Validates input.
     *
     * @param array $p_aUnvalidatedVars
     *
     */

    
    public function validate($p_aUnvalidatedVars) {
        foreach ($p_aUnvalidatedVars as $aData) {
            switch ($aData[0]) {
                case
"str_length":
                    if (!$this->strLength($aData[1], $aData[2], $aData[3])) {
                        $this->m_aErrors[] = $aData[4];
                    }

                    break;
                case
"is_empty":
                    if (!$this->isEmpty($aData[1])) {
                        $this->m_aErrors[] = $aData[2];
                    }

                    break;
                case
"is_num":
                    if (!$this->isNum($aData[1])) {
                        $this->m_aErrors[] = $aData[2];
                    }

                    break;
                case
"is_email":
                    if (!$this->isEmail($aData[1])) {
                        $this->m_aErrors[] = $aData[2];
                    }

                    break;
                case
"is_inrange":
                    if (!$this->isInRange($aData[1], $aData[2], $aData[3])) {
                        $this->m_aErrors[] = $aData[4];
                    }

                    break;
                case
"is_alpha":
                    if (!$this->isAlpha($aData[1])) {
                        $this->m_aErrors[] = $aData[2];
                    }

                    break;
            }
        }
    }

    
    /**
     * function isEmpty
     * checks if the given Value is empty. Handles Strings, Integers and Arrays
     *
     * @param mixed $p_mData
     * @return false on failure., true on succes
     */

    private function isEmpty($p_mData) {
        if (is_string($p_mData)) {
            if (trim($p_mData) == "") {
                return false;
            }
        }

        if (is_array($p_mData)) {
            if (empty($p_mData)) {
                return false;
            }
        }

        if (is_integer($p_mData)) {
            if (empty($p_mData)) {
                return false;
            }
        }

        if (empty($p_mData)) {
            return false;
        }

        return true;
    }

    
    /**
     * function isNum
     * Checks if the given value is numeric. Can be either string or Int.
     *
     * @param mixed $p_mData
     * @return false on failure, true on succes
     */

    private function isNum($p_mData) {
        if (!is_numeric($p_mData)) {
            return false;
        }

        return true;
    }

    
    /**
     * function isEmail
     * Checks if the given value is an email.
     *
     * @param String $p_mData
     * @return false on failure, true on succes
     */

    private function isEmail($p_sData) {
        if (is_string($p_sData)) {
            $pattern = "/^([a-zA-Z0-9])+([\.a-zA-Z0-9_-])*@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-]+)+/";
            if(!preg_match($pattern, $p_sData)) {
                return false;
            }
        }
else{
            return false;
        }

        return true;
    }

    
    /**
     * function isAlpha
     * checks if the given value are only Alphabetic (a-Z) values.
     *
     * @param string $p_sData
     * @return false on failure, true on succes
     */

    private function isAlpha($p_sData) {
        if (is_string($p_sData)) {
            $pattern = "/^[a-zA-Z]+$/";
            if (!preg_match($pattern, $p_sData)) {
                return false;
            }
        }
else {
            return false;
        }

        return true;
    }

    
    /**
     * function strLength
     * Checks the given value against the given min and max length.
     *
     * @param string $p_sStr
     * @param integer $p_iStart
     * @param integer $p_iEnd
     * @return false on failure, true on succes
     */

    private function strLength($p_sStr, $p_iStart, $p_iEnd) {
        if (is_string($p_sStr) && is_numeric($p_iStart) && is_numeric($p_iEnd)) {
            if (strlen($p_sStr) >= $p_iStart && strlen($p_sStr) <= $p_iEnd) {
                return true;
            }
else {
                return false;
            }
        }
else {
            return false;
        }
    }

    
    /**
     * function isInRange
     * Checks if the numeric value is in the given range of values. Can be String or Int
     *
     * @param mixed $p_mInt
     * @param mixed $p_mMin
     * @param mixed $p_mMax
     * @return false on failure, true on succes
     */

    private function isInRange($p_mInt, $p_mMin, $p_mMax) {
        if (is_numeric ($p_mInt) && is_numeric($p_mMin) && is_numeric($p_mMax)) {
            if (!($p_mInt >= $p_mMin) OR !($p_mInt <= $p_mMax)) {
                return false;
            }
        }
else {
            return false;
        }

        return true;
    }


        /**
         * function getErrors
         * Returns errors
         */

    public function getErrors() {
        if (!empty($this->m_aErrors)) {
            $sErrors = '';
            foreach ($this->m_aErrors as $sError) {
                $sErrors .= $sError . '<br />';
            }
        }

        return $sErrors;    
    }
}
[
/code]

Hoe te gebruiken:

Cleaner:
[
code]
[
code]<?php
    $sString
= 123;
    $iInt = '1';
    $bBool = 'waar';
    $aArray = '123';
    $unumNumber = -2;

    $oValidator = new Validator;
    $aClean = $oValidator->clean(array(
          array('type_str', $sString, 'myString'),
          array('type_int', $iInt, 'myInt'),
          array('type_bool', $bBool, 'myBool'),
          array('type_array', $aArray, 'myArray'),
          array('type_unum', $unumNumber, 'myunsignedNum')
      ));

      
      var_dump($aClean);
[
/code]

Output:
[
code]
  array(5) {
  [
"myString"]=>
  string(3) "123"
  ["myInt"]=>
  int(1)
  [
"myBool"]=>
  bool(true)
  [
"myArray"]=>
  array(0) {
  }
  [
"myunsignedNum"]=>
  int(0)
}
[
/code]

Zoals je ziet. alle typen zijn netjes de typen gewoorden waar ik om vroeg :) (ps. unsigned/signed is niet in php zelf uit te vinden. daarom op die manier.)

En de Validator:

[
code]
[
code]<?php
  $sString
= 'Langerdanzes';
  $sAlpha = 'NietAlphabetisch123_+)';
  $oValidator = new Validator;
  $oValidator->Validate(array(
      array('str_length', $sString, 1, 6, '$sString moet langer zijn dan 1 en korter dan 6'),
      array('is_alpha', $sAlpha, '$sAlpha mag alleen alphabetische karakters bevatten')
  ));

          
  if ($oValidator->getErrors()) {
      echo $oValidator->getErrors();
  }
[
/code]

En de result:
[
code]
$sString moet langer zijn dan 1 en korter dan 6
$sAlpha
mag alleen alphabetische karakters bevatten
[/code]

Simpeler kan niet zou ik zeggen.

 
 

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