DataTypeValidator

DataTypeValidator is a PHP Experts, Inc., Project designed for easy data type validation.

It supports both traditional, fuzzy, PHP data types (e.g., "1.0" can be both a float, int, and string) and strict data type validations ('1' is only a string, 1.0 is only a float, etc.).

Installation

Via Composer

composer require phpexperts/datatype-validator

Usage

// 1. Pick a Type Checker (IsAFuzzyDataType or IsAStrictDataType).
//    * IsAFuzzyDataType tries its best to emulate PHP's `==`.
//    * IsAStrictDataType observes PHP's `strict_types=1` rules.
    $validator = new DataValidator(new IsAStrictDataType());

// There are two powerful mechanisms out of the box:
// 2. It is easy to validate any data type dynamically, without a ton of if statements.

    $validator->isType('asdf', 'string'); // true or false.
    $validator->assertIsType(1, 'int'); // null or throws InvalidDataTypeException

// 3. You can also validate arrays:

    $data = [
        'name'     => 'Cheyenne',
        'age'      => 22,
        'birthday' => Carbon::parse('1996-12-04 15:15:15'),
        'daysOld'  => 8194.35,
        'today'    => Carbon::now(),
        'sayHi'    => function () { return 'Hi!'; },
    ];
    
    $rules = [
         'name'     => 'string',
         'age'      => 'int',
         'birthday' => 'Carbon',
         'daysOld'  => 'float',
         'today'    => 'Carbon\Carbon',
         'sayHi'    => 'callable',
     ];

    $validator->validate($data, $rules);

// 4. DataValidator::validate() will return `true` on success or throw 
//    an `InvalidDataTypeException` that contains an array of errors:

    $data = [
        'name'     => 'Cheyenne',
        'age'      => '22',
        'birthday' => '1996-12-04 15:15:15',
    ];
    
    try {
        $validator->validate($data, $rules);
    } catch (InvalidDataTypeException $e) {
        print_r($e->getReasons());

        /* Output:
        array:2 [
          0 => "age is not a valid int"
          1 => "birthday is not a valid Carbon"
        ]
        */
    }

// 5. It can validate objects based on their short name or full name.
    $data = [
        'yesterday' => \Carbon\Carbon::parse('2019-05-11'),
        'tomorrow'  => \Carbon\Carbon::parse('2019-05-13'),
    ];
    
    $validator->validate($data, [
        'yesterday' => '\Carbon\Carbon',
        'tomorrow'  => 'Carbon',
    ]);

Benchmarks

phpbench run --report=aggregate

Use cases

PHPExperts\DataTypeValidator\DataTypeValidator
✔ Can bulk validate a data array
✔ Will return the name of the data validator logic
✔ Will return an array of invalid keys with explanations
✔ Will silently ignore data not in the rules
✔ Will silently ignore nullable rules with no data
✔ Data cannot be null by default
✔ Any data type that starts with a '?' is nullable
✔ Any data type that ends with '[]' is an array of X
✔ Will allow an empty array of something
✔ Will allow a nullable array of something
✔ Will throw a logic exception if a non string rule is given

PHPExperts\DataTypeValidator\DataTypeValidator: Assertions
✔ Will assert a value is a bool
✔ Will assert a value is an int
✔ Will assert a value is a float
✔ Will assert a value is a string
✔ Will assert a value is an array
✔ Will assert a value is an object
✔ Will assert a value is a callable
✔ Will assert a value is a resource
✔ Will assert an array of something
✔ Will assert an object by its short name
✔ Will assert an object by its full name

PHPExperts\DataTypeValidator\DataTypeValidator: Data Type Checks
✔ Will validate bools strictly
✔ Will validate ints strictly
✔ Will validate floats strictly
✔ Will validate strings strictly
✔ Will validate arrays strictly
✔ Will validate objects
✔ Will validate callables
✔ Will validate resources
✔ Will validate objects by their short name
✔ Will validate objects by their full name
✔ Can validate bools loosely
✔ Can validate ints loosely
✔ Can validate floats loosely
✔ Can validate strings loosely
✔ Can validate arrays loosely
✔ Will validate arrays of something

PHPExperts\DataTypeValidator\IsAFuzzyDataType
✔ Will return true for valid values
✔ Will return false for invalid values
✔ Will match short classes
✔ Will match specific classes
✔ Will work with an array of something

PHPExperts\DataTypeValidator\IsAStrictDataType
✔ Will return true for valid values
✔ Will return false for invalid values
✔ Will match short classes
✔ Will match specific classes
✔ Will work with an array of something

Testing

phpunit

Contributors

Theodore R. Smith theodore@phpexperts.pro
GPG Fingerprint: 4BF8 2613 1C34 87AC D28F 2AD8 EB24 A91D D612 5690
CEO: PHP Experts, Inc.

License

MIT license. Please see the license file for more information.