数据验证类-StartMVC超轻量PHP框架

市面上的框架基本都带数据验证功能但基本都只能验证一维数据，现在的接口开发都是基于Restful结构化JSON数据（多维数据），我们这个数据验证支持无限级对象数据验证。

加载验证类

use startmvc\core\Validator;// 引入Validator 类

验证单个数据

Validator内置了很多静态方法可以直接调用

var_dump(Validator::isMobile('12345678901'));
//bool(false)

过滤数据

var_dump(Validator::filterUtf8('Kiss ???? me'));//过滤三字节以上的字符
//string(8) "Kiss  me"

常规的数据验证

$data = [
    'username' => 'startmvc',
    'passwd' => 'abc123',
    'age' => 25
];
$rule = [
    'username' => 'required|is_alpha_num|minlen:6',
    'passwd' => 'required|minlen:8',
    'age' => 'required|gte:18|lte:35',
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    print_r($v->getData());
} else {
    echo $v->getErrorString();
}
//username最小长度为6个字符

自定义TAG和自定义错误提示

上面的demo中返回的错误是由系统自动生成的，可以自定义TAG或者自定义错误提示

自定义TAG 使用单个反引号包裹

$data = [
    'username' => 'startmvc',
    'passwd' => 'abc123',
    'age' => 25
];
$rule = [
    'username' => 'required|is_alpha_num|minlen:6 `用户名`',
    'passwd' => 'required|minlen:8',
    'age' => 'required|gte:18|lte:35',
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    print_r($v->getData());
} else {
    echo $v->getErrorString();
}
//用户名最小长度为6个字符

自定义错误使用双反引号包裹

$data = [
 'username' => 'startmvc',
 'passwd' => 'abc123',
 'age' => 25
];
$rule = [
 'username' => 'required|is_alpha_num|minlen:6 ``用户名必须是字母和数字组成哦``',
 'passwd' => 'required|minlen:8',
 'age' => 'required|gte:18|lte:35',
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
 print_r($v->getData());
} else {
 echo $v->getErrorString();
}
//用户名必须是字母和数字组成哦

自动去空格

系统默认开启了字符串去除两端空格,可以使用 $v->setFieldAutoTrim(false); 来关闭

$data = [
 'username' => ' startmvc ',
 'passwd' => 'abc123',
];
$rule = [
 'username' => 'required|minlen:5',
 'passwd' => 'required|minlen:6 `密码`',
];
$v = new Validator();
$v->setFieldAutoTrim(false);
if ($v->setRules($rule)->validate($data)) {
 var_dump($v->getDataByField('username'));
} else {
 echo $v->getErrorString();
}
//string(9) " startmvc "

调用PHP内置函数

任何callable函数都可以被用在规则里面，如下trim和substr

$data = [
    'username' => ' startmvc ',
    'passwd' => 'abc123',
];
$rule = [
    'username' => 'required|trim|substr:0,3',
    'passwd' => 'required|minlen:6 `密码`',
];
$v = new Validator();
$v->setFieldAutoTrim(false);
if ($v->setRules($rule)->validate($data)) {
    var_dump($v->getDataByField('username'));
} else {
    echo $v->getErrorString();
}
//string(3) "sta"

参数位置占位符@@

当前参数传递不是函数第一个参数时需要用@@做占位，如：str_replace:o,a,@@ 把o替换成a

$data = [
    'username' => ' startmvc ',
    'passwd' => 'abc123',
];
$rule = [
    'username' => 'required|trim|str_replace:v,o,@@',
    'passwd' => 'required|minlen:6 `密码`',
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    var_dump($v->getDataByField('username'));
} else {
    echo $v->getErrorString();
}
//string(7) "startmoc"

自定义验证函数

自定义函数返回布尔值表示验证

$v->setTagMap('is_num', function ($var) {
    return is_numeric($var) ? true : false;
});

自定义函数返回非布尔值表示过滤

$v->setTagMap('filter_num', function ($var) {
    return preg_replace('/[^\d]/', '', $var);
});

完整的例子

$data = [
    'username' => ' startmvc ',
    'qq' => 'abc123bcd456',
];
$rule = [
    'username' => 'required|minlen:5',
    'qq' => 'required|filter_num|minlen:6 `QQ`',
];
$v = new Validator();
$v->setTagMap('filter_num', function ($var) {
    return preg_replace('/[^\d]/', '', $var);
});
if ($v->setRules($rule)->validate($data)) {
    var_dump($v->getDataByField('qq'));
} else {
    echo $v->getErrorString();
}
//string(6) "123456"

两个字段值必须相同(same用法)

一般用在密码和重复密码比较的场景

$data = [
    'username' => 'startmvc',
    'passwd' => 'abc123',
    'repasswd' => 'abc12',
];
$rule = [
    'username' => 'required|is_alpha_num|minlen:5',
    'passwd' => 'required|minlen:6 `密码`',
    'repasswd' => 'required|same:passwd ``密码必须和重复密码一致``',
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    print_r($v->getData());
} else {
    echo $v->getErrorString();
}
//密码必须和重复密码一致

无限级数据验证

$data = [
    'username' => 'abc123',
    'mobile' => '13345678901',
    'attr' => [
        'sex' => 0,
        'age' => 28,
        'shoe' => [
            'brand' => 'NB',
            'size' => 41,
        ]
    ],
];
$rule = [
    'username' => 'required|minlen:6',
    'mobile' => 'required|is_mobile',
    'attr' => [
        'sex' => 'required|in:0,1,2',
        'age' => 'required|gte:18|lte:35',
        'shoe' => [
            'brand' => 'required',
            'size' => 'required|gte:18|lte:45',
        ]
    ]
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    print_r($v->getData());
} else {
    echo $v->getErrorString();
}
//Array
//(
//    [username] => abc123
//    [mobile] => 13345678901
//    [attr] => Array
//        (
//            [sex] => 0
//            [age] => 28
//            [shoe] => Array
//                (
//                    [brand] => NB
//                    [size] => 41
//                )
//
//        )
//
//)

注意：无限级数据规则设置支持对象无限级但不支持数组，如下数据结构

$data = [
    'username' => 'abc123',
    'mobile' => '13345678901',
    'address' => [
       ['provice' => '北京', 'city' => '北京'],
       ['provice' => '江苏', 'city' => '浙江'],
    ],
];

解决办法：使用setTagMap来设置定义函数迭代验证
获取错误

获取字符格式的错误

...
echo $v->getErrorString();
//密码必须和重复密码一致

获取数组形式的错误

...
print_r($v->getError());
//Array
//(
//    [repasswd] => 密码必须和重复密码一致
//)

获取结果数据

获取所有数据含未验证字段 $v->getAllData()

$data = [
    'username' => 'startmvc',
    'age' => '123s',
    'hobby' => 'sport',
];
$rule = [
    'username' => 'required|minlen:5',
    'age' => 'required|intval',
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    print_r($v->getAllData());
} else {
    print_r($v->getError());
}
//Array
//(
//    [username] => startmvc
//    [age] => 123
//    [hobby] => sport
//)

获取已设置验证规则的数据不含未验证字段 $v->getData()

注意：当字段未设置required属性且未传递该字段时结果不含该字段

$data = [
    'username' => 'startmvc',
    'age' => '123s',
    'hobby' => 'sport',
];
$rule = [
    'username' => 'required|minlen:5',
    'age' => 'required|intval',
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    print_r($v->getData());
} else {
    print_r($v->getError());
}
//Array
//(
//    [username] => startmvc
//    [age] => 123
//)

获取某个字段的值支持链式结构 foo.bar

$data = [
    'username' => 'abc123',
    'mobile' => '13345678901',
    'attr' => [
        'sex' => 0,
        'age' => 28,
        'shoe' => [
            'brand' => 'NB',
            'size' => 41,
        ]
    ],
];
$rule = [
    'username' => 'required|minlen:6',
    'mobile' => 'required|is_mobile',
    'attr' => [
        'sex' => 'required|in:0,1,2',
        'age' => 'required|gte:18|lte:35',
        'shoe' => [
            'brand' => 'required',
            'size' => 'required|gte:18|lte:45',
        ]
    ]
];
$v = new Validator();
if ($v->setRules($rule)->validate($data)) {
    var_dump($v->getDataByField('mobile'));
    var_dump($v->getDataByField('attr.shoe.brand'));
} else {
    echo $v->getErrorString();
}
//string(11) "13345678901"
//string(2) "NB"

内置规则TAG列表

required
len
minlen
maxlen
width
minwidth
maxwidth
gt 
lt 
gte
lte
eq
neq
in
nin
same
is_mobile
is_email
is_idcard
is_ip
is_url
is_array
is_float 
is_int
is_numeric
is_string
is_natural
is_natural_no_zero
is_hanzi 
is_mongoid 
is_alpha
is_alpha_num
is_alpha_num_dash

`<b>内置函数列表<br></b>`

public function required($var): bool
public function same($var, $compare_var): bool
public static function len($var, $len): bool
public static function minlen($var, $len): bool
public static function maxlen($var, $len): bool
public static function width($var, $len): bool
public static function minwidth($var, $len): bool
public static function maxwidth($var, $len): bool
public static function isMobile($var): bool
public static function isEmail($var): bool
public static function isIp($var, $type = 'ipv4'): bool
public static function isUrl($var): bool
public static function isIdcard($var): bool //是否为身份证号码
public static function isNatural($var): bool
public static function isNaturalNoZero($var): bool
public static function isHanzi($var): bool //是否汉字
public static function isMongoid($var): bool
public static function isAlpha($var): bool
public static function isAlphaNum($var): bool
public static function isAlphaNumDash($var): bool
public static function gt($var, $min): bool
public static function lt($var, $max): bool
public static function gte($var, $min): bool
public static function lte($var, $max): bool
public static function eq($var, $obj): bool
public static function neq($var, $obj): bool
public static function in($var, ...$set): bool
public static function nin($var, ...$set): bool
public static function filterUtf8($var): string //过滤3字节以上的字符

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