PHP汎用フォームバリデーション(検証)クラスのサンプル

2014年8月3日

PHPコード：
<?php
class Lib_Form
{
private $typeArr=array('isNotEmpty’ , 'isInt’ , 'isStr’ , 'isEmail’ , 'isOnlyNum’ , 'hasSet’, 'isOnlyChar’ , 'isNumAndChar’ , 'checkLength’);
private $msg = array();
private $code = 0;

public function validata($post)
{
if(!is_array($post))
{
$this->msg[] = 'data is not array’;
}
else
{
foreach ($post as $field=>$value)
{
$func = $post[$field]['valid’];
$value = $post[$field]['value’];

$checkLength = 'checkLength’;
if($pos = stripos($func , $checkLength)!==false)
{
$condition = substr($func, strlen($checkLength));
$func = $checkLength;
$lengthArr = explode('-', $condition);
self::$func($value , $field , $lengthArr[0] , $lengthArr[1]);
}
else
{
if(!in_array($func , $this->typeArr))
{
$this->msg = $func.’ isNotExists’;
break;
}
self::$func($value , $field);
}
}
}
return $this->showRestult();
}

private function showRestult()　//結果を表示
{
if($this->msg && is_array($this->msg))
{
$this->code = 1;
$msg = implode(',’, $this->msg);
$ret = array('code’=>$this->code , 'msg’=>$msg);
return $ret;
}
return array('code’=>$this->code , 'msg’=>’success’);
}

private function isNotEmpty($value,$field)　//emptyの判断
{
if(!$this->hasSet($value, $field)) return false;
$value = trim($value);
if(empty($value))
{
$this->msg[] = $field.’ isEmpty’;
return false;
}
return true;
}

private function isInt($value,$field)　//整数の判断
{
if(!$this->isNotEmpty($value,$field)) return false;
$value = trim($value);
if(!is_int($value))
{
$this->msg[] = $field.’ isNotInt’;
return false;
}
return true;
}

private function isStr($value,$field)　//文字列の判断
{
if(!$this->isNotEmpty($value,$field)) return false;
$value = trim($value);
if(!is_string($value))
{
$this->msg[] = $field.’ isNotStr’;
return false;
}
return true;
}

private function hasSet($value , $field)　//変数セットの判断
{
if(!isset($value))
{
$this->msg[] = $field.’ isNotSet’;
return false;
}
return true;
}

private function isEmail($value,$field)　//メールアドレスの判断
{
if(!$this->isNotEmpty($value,$field)) return false;
$value = trim($value);
$pattern = “/^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)$/";
if(!preg_match($pattern, $value))
{
$this->msg[] = $field.’ isNotEmail’;
return false;
}
return true;
}

private function isOnlyNum($value,$field)　//数字かどうか判断
{
if(!$this->isNotEmpty($value,$field)) return false;
$value = trim($value);
$pattern = “/^[0-9]{1,}$/";
if(!preg_match($pattern, $value))
{
$this->msg[] = $field.’ isNotOnlyNum’;
return false;
}
return true;
}

private function isOnlyChar($value,$field)　//文字かどうか判断
{
if(!$this->isNotEmpty($value,$field)) return false;
$value = trim($value);
$pattern = “/^[a-zA-Z]{1,}$/";
if(!preg_match($pattern, $value))
{
$this->msg[] = $field.’ isNotOnlyChar’;
return false;
}
return true;
}

private function isNumAndChar($value,$field)
{
if(!$this->isNotEmpty($value,$field)) return false;
$value = trim($value);
$pattern = “/^[a-zA-z0-9]{1,}$/";
if(!preg_match($pattern , $value))
{
$this->msg[] = $field.’ isNotNumAndChar’;
return false;
}
return true;
}

private function checkLength($value , $field , $minLength , $maxLength)　　　　//長さの判断
{
if(!$this->isNotEmpty($value,$field)) return false;
$value = trim($value);
$length = (strlen($value) + mb_strlen($value,’UTF8′)) / 2;
if($length < $minLength || $length > $maxLength)
{
$this->msg[] = $field.’ isNotInLength’;
return false;
}
return true;
}
}

if($_POST['submit’])
{
$form = new Lib_Form();
$post['name’] = array('value’=>$_POST['name’] , 'valid’=>’checkLength6-12’);
$post['pwd’] = array('value’=>$_POST['pwd’] , 'valid’=>’checkLength4-12’);
$post['sex’] = array('value’=>$_POST['sex’] , 'valid’=>’hasSet’);

$ret = $form->validata($post);
if($ret['code’])
{
echo $ret['msg’];
}
}
?>