Validator\LIVR - Lightweight validator supporting Language Independent Validation Rules Specification (LIVR)
Common usage:
require 'LIVR.php'
Validator\LIVR::defaultAutoTrim(true);
$validator = new Validator\LIVR( [
'name' => 'required',
'email' => [ 'required', 'email'],
'gender' => [ 'one_of' => ['male', 'female'] ],
'phone' => [ 'max_length' => 10 ],
'password' => [ 'required', ['min_length' => 10] ],
'password2' => [ 'equal_to_field' => 'password' ]
] );
var $validData = $validator->validate($userData);
if ($validData) {
saveUser($validData);
} else {
$errors = $validator->getErrors();
}You can use filters separately or can combine them with validation:
$validator = new Validator\LIVR([
'email' => [ 'required', 'trim', 'email', 'to_lc' ]
]);Feel free to register your own rules:
$validator = new Validator\LIVR([
'password' => ['required', 'strong_password']
]);
$validator->registerRules([ 'strong_password', function() {
return function($value) {
// We already have "required" rule to check that the value is present
if ( !isset($value) || $value === '' ) {
return;
}
if ( strlen($value) < 6 ) {
return 'WEAK_PASSWORD'
}
}
} ]);See https://github.com/koorchik/LIVR for details.
Features:
- Rules are declarative and language independent
- Any number of rules for each field
- Return together errors for all fields
- Excludes all fields that do not have validation rules described
- Has possibility to validatate complex hierarchical structures
- Easy to describe and undersand rules
- Returns understandable error codes(not error messages)
- Easy to add own rules
- Rules are be able to change results output ("trim", "nested_object", for example)
- Multipurpose (user input validation, configs validation, contracts programming etc)
Use Composer for installation LIVR. Create composer.json file with following content:
{
"require": {
"validator/livr": "dev-master"
}
}Contructor creates validator objects. $livr - validations rules. Rules description is available here - https://github.com/koorchik/LIVR
$isAutoTrim - asks validator to trim all values before validation. Output will be also trimmed. if isAutoTrim is undefined(or null) than defaultAutoTrim value will be used.
ruleBuilder - is a function reference which will be called for building single rule validator.
Validator\LIVR::registerDefaultRules([ 'my_rule' => function($arg1, $arg2, $arg3, $ruleBuilders) {
// ruleBuilders - are rules from original validator
// to allow you create new validator with all supported rules
$validator = new Validator\LIVR($livr);
$validator->registerRules($ruleBuilders)->prepare();
return function($value, $allValues, &$outputArr) use ($validator) {
...
if ($notValid) {
return "SOME_ERROR_CODE";
}
else {
}
}
} ]);Then you can use "my_rule" for validation:
[
'name1' => 'my_rule' // Call without parameters
'name2' => [ 'my_rule' => arg1 ] // Call with one parameter.
'name3' => [ 'my_rule' => [arg1] ] // Call with one parameter.
'name4' => [ 'my_rule' => [ arg1, arg2, arg3 ] ] // Call with many parameters.
]Here is "max_number" implemenation:
function maxNumber($maxNumber) {
return function($value) use($maxNumber) {
// We do not validate empty fields. We have "required" rule for this purpose
if ( !isset($value) || $value === '' ) {
return;
}
// return error message
if ( $value > $maxNumber ) {
return 'TOO_HIGH';
}
};
};
LIVR\Validator->registerDefaultRules([ 'max_number' => $maxNumber ]);All rules for the validator are equal. It does not distinguish "required", "list_of_different_objects" and "trim" rules. So, you can extend validator with any rules you like.
returns array containing all default ruleBuilders for the validator. You can register new rule or update existing one with "registerRules" method.
Enables or disables automatic trim for input data. If is on then every new validator instance will have auto trim option enabled
Validates user input. On success returns validData (contains only data that has described validation rules). On error return false.
$validData = $validator->validate($input);
$errors = $validator->getErrors();
if ($errors) {
// Throw exceptions, write logs, show error messages, etc, using $errors
} else {
// Use $vaidData
}Returns errors array.
[
"field1" => "ERROR_CODE",
"field2" => "ERROR_CODE",
...
]For example:
[
"country" => "NOT_ALLOWED_VALUE",
"zip" => "NOT_POSITIVE_INTEGER",
"street" => "REQUIRED",
"building" => "NOT_POSITIVE_INTEGER"
]$ruleBuilder - is a function reference which will be called for building single rule validator.
See "Validator\LIVR::registerDefaultRules" for rules examples.
$validator->registerAliasedRule([ "name" => $ruleName, "rules" => $livrRules, "error" => $errorCode ]);
Create custom rules easely and assign own error codes in case own need. See rules-aliasing in LIVR specification.
$validator->registerAliasedRule([
"name" => "adult_age",
"rules" => [ "positive_integer", ["min_number" => 18] ],
"error" => "WRONG_AGE"
]);returns array containing all ruleBuilders for the validator. You can register new rule or update existing one with "registerRules" method.
- antonfin (Anton Morozov)
- k0stik (Konstantin Dvornik)
- k33nice (Alexandr Krykovliuk)
- koorchik (Viktor Turskyi)
- wanderer (Danil Greben)
Please report any bugs or feature requests to Github https://github.com/WebbyLab/php-validator-livr
Copyright 2012 Viktor Turskyi.
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