php 表单验证类
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>表单验证测试</title>
</head>
<body>
<h2>简易表单验证!</h2>
<div class="help" style="font-size:12px;color:grey">下面的例子已经够清楚了，如果需要自定义验证类型或者自定义验证表达式可以自定义函数：validate_myfun(需要验证的值,规则数组)<br />自定义表达式:_erun_myfun(要验证的值,规则数组,表达式数组)</div>
<div class="info" style="padding:10px;background:#ffc">
<?php
function validate_testa($value,$args){
if($value%2 == 0){
return array(false,$args['cname'].'输入错误,只能输入奇数！');
}else{
return array(true,null);
}
}
function _erun_testb($value,$args,$t){
if($value >= $t['setting']){
return array(false,$args['cname'].'只能输入小于'.$t['setting'].'的数！');
}else{
return array(true,null);
}
}
/*以上是自定义函数和自定义表达式*/
if($_GET['action'] == 'post'){
require('include/Validator.php');
$validate_str = $_POST['valstr'];
unset($_POST['valstr']);
$val = new Validator();
$break = isset($_POST['break'])?true:false;
if($val->validate($_POST,$validate_str,$break)){
echo "提交成功！";
}else{
echo "<h4>提交失败</h4>";
if($break){
echo $val->getMsg();
}else{
echo "<ul>";
foreach($val->getMsg() as $msg){
echo "<li>".$msg."</li>";
}
echo "</ul>";
}
}
}
?>
</div>
<div id="form">
<form action="test.php?action=post" method="post" style="line-height:2;">
标 题 : <input type="text" name="title" value="<?=$_POST['title']?>" /> *<br />
密 码 : <input type="password" name="password" value="<?=$_POST['password']?>" /> *<br />
确认密码 : <input type="password" name="passagain" value="<?=$_POST['passagain']?>" /> *<br />
您的年龄 : <input type="text" name="age" value="<?=$_POST['age']?>" /><br />
您的生日 : <input type="text" name="birth" value="<?=$_POST['birth']?>" /><br />
自定义 : <input type="text" name="a" value="<?=$_POST['a']?>" /><br />
验证字串 : <textarea name="valstr" cols="80" rows="10">title|标题|string|require=请务必填写标题|length(5:30)=标题长度不正确
password|密码|alnumu|require|length(6:)=密码不得少于6位
passagain|确认密码|alnumu|require|equal(password)
age|年龄|int=年龄必须为整数哦！||size(18:100)
birth|生日|time||time_format(Y-m-d)
a|测试类型|testa||testb(10)</textarea><br />
<input name="break" type="checkbox" value="1" /> 只显示单个错误<br />
<input type="submit" value="提交" name="submit" />
</form>
</div>
</body>
</html>
<?php
/**
*
* Created By Baoling
* Date: 2009-07-13
* Contact: baoling@yeah.net / QQ:110042869
* Blog: blog.meiu.cn
*
* 目前支持以下验证类型 注意验证的提示信息中不能含有空格、换行和竖线和等号空格用{SP}代替，换行用{LF}代替，竖线用{VE}
* string 字符,
* time 时间日期,
* alnum 字母加数字,
* alpha 字母,
* alnumu 字母数字下划线,
* digits 数字,
* graph 可显示的字符,
* lower 小写,
* print 可否打印,
* punct 标点,
* whitespace 空格或制表符,
* upper 大写,
* int 整型,
* float 浮点型,
* ipv4 ip地址,
* binary 二进制数,
* domain 域名,
* email Email
*
* 要验证的数组的key | 中文名称 | 验证类型 | 是否必须 | 其他(equal length size format)
* title|标题|string=格式不正确|require=必须要填写|length(22:32)=长度不正确
* age|年龄|int|require|size(1:200) equal(addtime)
* addtime|时间|time|require|time_format(Y-m-d)
* ipaddr|IP地址|ipv4|require|
* email|email地址|email|require|
* password|密码|string|require|equal(title)
* a|测试a|float|require|length(0:199.99)
* b|测试b|binary|require|
* c|测试c|binary||
*
*/
//清除数组内各个值的前后空格
function trimArray($Input){
if (!is_array($Input))
return trim($Input);
return array_map('trimArray', $Input);
}
class Validator{
var $_locale = null;
var $break = false;
var $pass = true;
var $errmsg = array();
var $arr = array();
function validate($arr,$rule_str,$break = null){
if($break !== null){
$this->break = $break;
}
$this->arr = $arr;
if(trim($rule_str) == ''){
exit('Validate rules can\'t be empty!');
}
$rule_str = str_replace("r",'',trim($rule_str));
$rule_arr = explode("n",$rule_str);
foreach($rule_arr as $rule){
if(!$this->_complier_rule($rule) && $this->break == true){
return false;
}
}
return $this->pass;
}
/**
* 解析每条规则并验证
*/
function _complier_rule($rule){
$rule = trim($rule);
if($rule == ''){
exit('Validate rules can\'t be empty!');
}else{
$ruleargs = trimArray(explode('|',$rule));
$args = array(
'field' => $ruleargs[0],
'cname' => $ruleargs[1],
'type' => $ruleargs[2],
'require' => $ruleargs[3],
'expression' => $ruleargs[4]
);
unset($ruleargs);
if($this->_validate_require($args)){ //验证字段是否填写
$tpos = strpos($args['type'],'=');
if($tpos){
$func_name = 'validate_'.substr($args['type'],0,$tpos);
$error_title = substr($args['type'],$tpos+1,strlen($args['type']));
}else{
$func_name = 'validate_'.$args['type'];
$error_title = null;
}
if(method_exists($this,$func_name)){
$return = $this->{$func_name}($this->arr[$args['field']],$args,$error_title);
}else{
if(function_exists($func_name)){
list($return,$msg) = call_user_func($func_name,$this->arr[$args['field']],$args);
if(!$return){
if($tpos){
$this->_setMsg($args['field'],null,$error_title);
}else{
$this->_setMsg($args['field'],$args['cname'],$msg);
}
}
}else{
exit('The validator function doesn\'t exist!');
}
}
if(!$return){
$this->pass = false;
}
//验证表达式
$this->_expressions($args);
}
return $this->pass;
}
}
/**
* 验证必填字段
*/
function _validate_require($args){
if( array_key_exists($args['field'],$this->arr) ){
if(strncasecmp($args['require'],'require',7) == 0 && $this->arr[$args['field']] == ''){
if($mpos = strpos($args['require'],'=')){
$this->_setMsg($args['field'],null,substr($args['require'],$mpos+1,strlen($args['require'])));
}else{
$this->_setMsg($args['field'],$args['cname'],'不能为空!');
}
$this->pass = false;
return false;
}elseif($this->arr[$args['field']] != ''){
return true;
}else{
return false;
}
}elseif(strncasecmp($args['require'],'require',7) == 0){
if($mpos = strpos($args['require'],'=')){
$this->_setMsg($args['field'],null,substr($args['require'],$mpos+1,strlen($args['require'])));
}else{
$this->_setMsg($args['field'],$args['cname'],'不能为空!');
}
$this->pass = false;
return false;
}else{
return false;
}
}
/**
* 验证表达式
*/
function _expressions($args){
if(preg_match_all('/([a-zA-Z0-9_-]+)(([^(]+))=?([^\s]*)/',$args['expression'],$t)){
foreach($t[0] as $k=>$v){
if($t[1][$k] != 'time_format'){
$tt = array('expression'=>$t[1][$k],'setting'=>$t[2][$k],'title'=>$t[3][$k]);
$equal_func = "_erun_".$t[1][$k];
if(method_exists($this,$equal_func)){
$this->{$equal_func}($args,$tt);
}else{
if(function_exists($equal_func)){
list($return,$msg) = call_user_func($equal_func,$this->arr[$args['field']],$args,$tt);
}else{
exit('The validator expression function doesn\'t exist!');
}
if(!$return){
$this->pass = false;
if(!empty($tt['title'])){
$this->_setMsg($args['field'],null,$tt['title']);
}else{
$this->_setMsg($args['field'],$args['cname'],$msg);
}
}
}
}
}
}
}
//表达式equal判断与某个字段是否相等
function _erun_equal($args,$t){
if($this->arr[$args['field']] != $this->arr[$t['setting']]){
$this->pass = false;
if(!empty($t['title'])){
$this->_setMsg($args['field'],null,$t['title']);
}else{
$this->_setMsg($args['field'],$args['cname'],'不一致!');
}
}
}
//表达式length，判断字符长度
function _erun_length($args,$t){
if(strpos($t['setting'], ':') !== false){
$length_rule = explode(':',$t['setting']);
$length = strlen($this->arr[$args['field']]);
if($length_rule[0] == '' && $length > $length_rule[1]){
$this->pass = false;
$title = sprintf("大于 %s 字符的限制!",$length_rule[1]);
}
if($length_rule[1] == '' && $length < $length_rule[0]){
$this->pass = false;
$title = sprintf("不得小于 %s 字符!",$length_rule[0]);
}
if($length_rule[0] != '' && $length_rule[1] != '' && ($length < $length_rule[0] || $length > $length_rule[1])){
$this->pass = false;
$title = sprintf("必须介于 %s 和 %s 字符之间!",$length_rule[0],$length_rule[1]);
}
if(isset($title)){
if(!empty($t['title'])){
$this->_setMsg($args['field'],null,$t['title']);
}else{
$this->_setMsg($args['field'],$args['cname'],$title);
}
}
}
}
//表达式size，验证数字型的大小,支持digits,int和float
function _erun_size($args,$t){
if(strpos($t['setting'], ':') !== false && preg_match('/^(digits|int|float)/i',$args['type'])){
$size_rule = explode(':',$t['setting']);
$num = $this->arr[$args['field']];
if($size_rule[0] == '' && $num > $size_rule[1]){
$this->pass = false;
$title = sprintf("不得大于 %s!",$size_rule[1]);
}
if($size_rule[1] == '' && $num < $size_rule[0]){
$this->pass = false;
$title = sprintf("不得小于 %s!",$size_rule[0]);
}
if($size_rule[0] != '' && $size_rule[1] != '' && ($num < $size_rule[0] || $num > $size_rule[1])){
$this->pass = false;
$title = sprintf("必须在 %s 和 %s 之间!",$size_rule[0],$size_rule[1]);
}
if(isset($title)){
if(!empty($t['title'])){
$this->_setMsg($args['field'],null,$t['title']);
}else{
$this->_setMsg($args['field'],$args['cname'],$title);
}
}
}
}
function getMsg(){
if($this->break){
if(is_array($this->errmsg))
return end($this->errmsg);
}else{
return $this->errmsg;
}
}
function validate_string($value,$args,$typemsg = null){
if(is_string($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须是字符!');
}
return false;
}
}
function validate_time($value,$args,$typemsg = null){
$test = @strtotime($value);
if ($test === false || $test === - 1)
{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'不是正确的时间/日期格式!');
}
return false;
}
if(preg_match('/time_format(([^(]+))=?([^\s]*)/',$args['expression'],$t)){
if(date($t[1],$test) == $value){
return true;
}else{
if(!empty($t[2])){
$this->_setMsg($args['field'],null,$t[2]);
}else{
$this->_setMsg($args['field'],$args['cname'],'不是正确的时间/日期格式!');
}
return false;
}
}
return true;
}
function validate_alnum($value,$args,$typemsg = null)
{
if(ctype_alnum($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'只能是数字和字母!');
}
return false;
}
}
function validate_alpha($value,$args,$typemsg = null)
{
if(ctype_alpha($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须是纯英文字!');
}
return false;
}
}
function validate_alnumu($value,$args,$typemsg = null)
{
if(preg_match('/[^a-zA-Z0-9_]/', $value) == 0){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'只能是字母数字和下划线!');
}
return false;
}
}
function validate_digits($value,$args,$typemsg = null)
{
if(is_numeric($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须是数字!');
}
return false;
}
}
function validate_graph($value,$args,$typemsg = null)
{
if(ctype_graph($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须是可见字符!');
}
return false;
}
}
function validate_lower($value,$args,$typemsg = null)
{
if(ctype_lower($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须全部小写!');
}
return false;
}
}
function validate_print($value,$args,$typemsg = null)
{
if(ctype_print($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须是可打印字符!');
}
return false;
}
}
function validate_punct($value,$args,$typemsg = null)
{
if(ctype_punct($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须是标点符号!');
}
return false;
}
}
function validate_whitespace($value,$args,$typemsg = null)
{
if(ctype_space($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须为空格或制表符!');
}
return false;
}
}
function validate_upper($value,$args,$typemsg = null)
{
if(ctype_upper($value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须全部大写!');
}
return false;
}
}
function validate_int($value,$args,$typemsg = null)
{
if (is_null($this->_locale))
{
$this->_locale = localeconv();
}
$value = str_replace($this->_locale['decimal_point'], '.', $value);
$value = str_replace($this->_locale['thousands_sep'], '', $value);
if (strval(intval($value)) != $value)
{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须为整数!');
}
return false;
}
return true;
}
function validate_float($value,$args,$typemsg = null)
{
if (is_null($this->_locale))
{
$this->_locale = localeconv();
}
$value = str_replace($this->_locale['decimal_point'], '.', $value);
$value = str_replace($this->_locale['thousands_sep'], '', $value);
if (strval(floatval($value)) != $value)
{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须为浮点数!');
}
return false;
}
return true;
}
/**
* 是否是 IPv4 地址（格式为 a.b.c.h）
*
* @param mixed $value
*
* @return boolean
*/
function validate_ipv4($value,$args,$typemsg = null)
{
$test = @ip2long($value);
if($test !== - 1 && $test !== false){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'不是有效的IP地址!');
}
return false;
}
}
/**
* 是否是二进制数值
*
* @param mixed $value
*
* @return boolean
*/
function validate_binary($value,$args,$typemsg = null)
{
if(preg_match('/[01]+/', $value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'必须是二进制数字!');
}
return false;
}
}
/**
* 是否是 Internet 域名
*
* @param mixed $value
*
* @return boolean
*/
function validate_domain($value,$args,$typemsg = null)
{
if(preg_match('/[a-z0-9.]+/i', $value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'不是有效的域名!');
}
return false;
}
}
function validate_email($value,$args,$typemsg = null)
{
if(preg_match('/^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$/i', $value)){
return true;
}else{
if(isset($typemsg)){
$this->_setMsg($args['field'],null,$typemsg);
}else{
$this->_setMsg($args['field'],$args['cname'],'不是有效的email!');
}
return false;
}
}
function _setMsg($key,$name=null,$text){
if(!isset($this->errmsg[$key])){
if(!isset($name)){
$this->errmsg[$key] = str_replace(array('{SP}','{LF}','{VE}'),array(' ',"n",'|'),$text);
}else{
$this->errmsg[$key] = $name.': '.$text;
}
}
}
}文章网址:http://www.phprm.com/code/8cd0d67cc73efc83b2d2ab31bfe23d4d.html
随意转载^^但请附上教程地址。