php-assert

Yet another validator, WHY??

It’s very fast and designed to be used in any method

There are many other cool asserts, but for their usability you must pay by time & memory of execution.
This assert gives you very simple and fast API.

Installation

The preferred way to install this extension is through composer.

php composer.phar require --prefer-dist ko-ko-ko/assert "~1.1.0"

or add line to require section of composer.json

"ko-ko-ko/assert": "~1.1.0"

Usage

use KoKoKo\assert\Assert;
Assert::assert($var, 'var')->notEmpty()->string();
// It's the same as
if (empty($var)) {
    throw new \InvalidArgumentException('Param $var must be not empty');
}
if (!is_string($var)) {
    throw new \InvalidArgumentException('Param $var must be string');
}

BASIC API

assert($value, $name)

Build validation object

• $value checking value. MUST be: array, bool, float, int, null, string
• $name name of variable, used in exception message. MUST be string

// OK
Assert::assert('', 'var')->isEmpty();
Assert::assert(5, 'var', '\LogicException');
// EXCEPTION: var MUST NOT be an object
Assert::assert(new stdClass(), 'var');

VALIDATION API

General asserts

isEmpty Check if value empty

• Antipode: notEmpty

// OK
Assert::assert('', 'var')->isEmpty();
Assert::assert('5', 'var')->notEmpty();
// EXCEPTION
Assert::assert('5', 'var')->isEmpty();
Assert::assert([], 'var')->notEmpty();

isArray Check if value is array

// OK
Assert::assert([], 'var')->isArray();
// EXCEPTION
Assert::assert('5', 'var')->isArray();

bool Check if value is bool

// OK
Assert::assert(false, 'var')->bool();
// EXCEPTION
Assert::assert('5', 'var')->bool();

float Check if value is float

// OK
Assert::assert(15.2, 'var')->float();
// EXCEPTION
Assert::assert('15.2', 'var')->float();
Assert::assert([], 'var')->float();

int Check if value is int

// OK
Assert::assert(15, 'var')->int();
// EXCEPTION
Assert::assert(15.2, 'var')->int();
Assert::assert([], 'var')->int();

numeric Check if value is numeric

// OK
Assert::assert(15, 'var')->numeric();
// EXCEPTION
Assert::assert('*', 'var')->numeric();

isNull Check if value is null

• Antipode: notNull

// OK
Assert::assert(null, 'var')->isNull();
Assert::assert('a', 'var')->notNull();
// EXCEPTION
Assert::assert('a', 'var')->isNull();
Assert::assert(null, 'var')->notNull();

string Check if value is string

// OK
Assert::assert('5', 'var')->string();
// EXCEPTION
Assert::assert([], 'var')->string();

resource Check if value is resource

// OK
Assert::assert(tmpfile(), 'var')->resource();
// EXCEPTION
Assert::assert(5, 'var')->resource();

inArray($range) Check if value is in array $range

Arguments:

• $range MUST be array

// OK
Assert::assert('a', 'var')->inArray(['a', 'b']);
// EXCEPTION
Assert::assert('c', 'var')->inArray(['a', 'b']);
// ----------
// EXCEPTION: $range MUST be array
Assert::assert(['a'], 'var')->inArray('a');

isSame($anotherValue) Check if value is same as $anotherValue

• Antipode: notSame

Arguments:

• $anotherValue MUST be not object

// OK
Assert::assert('a', 'var')->isSame('a');
// EXCEPTION
Assert::assert('a', 'var')->isSame('b');
// ----------
// EXCEPTION: $anotherValue MUST be not object
Assert::assert('a', 'var')->isSame(new \stdClass());

notSame($anotherValue) Check if value is not same as $anotherValue

• Antipode: isSame

Arguments:

• $anotherValue MUST be not object

// OK
Assert::assert('a', 'var')->notSame('b');
// EXCEPTION
Assert::assert('a', 'var')->notSame('a');
// ----------
// EXCEPTION: $anotherValue MUST be not object
Assert::assert('a', 'var')->notSame(new \stdClass());

String asserts

All string asserts run previously:

• string

digit Check if value contains only digits

// OK
Assert::assert('5', 'var')->digit();
// EXCEPTION
Assert::assert('c', 'var')->digit();
// ----------
// EXCEPTION: var MUST be string
Assert::assert(5, 'var')->digit();

match($pattern) Check if value match RegExp pattern

Arguments:

• $pattern MUST be correct RegExp pattern

// OK
Assert::assert('a', 'var')->match('/a/');
// EXCEPTION
Assert::assert('b', 'var')->match('/a/');
// ----------
// EXCEPTION: pattern MUST be not empty
Assert::assert('a', 'var')->match('');
// EXCEPTION: var MUST be string
Assert::assert(5, 'var')->match('/a/');
// EXCEPTION: pattern MUST be correct RegExp
Assert::assert('a', 'var')->match('/a');

glob($pattern) Check if value match glob pattern

// OK
Assert::assert('aa', 'var')->glob('a*');
// EXCEPTION
Assert::assert('bb', 'var')->glob('a*');
// ----------
// EXCEPTION: pattern MUST be not empty
Assert::assert('a', 'var')->glob('');
// EXCEPTION: pattern MUST be string
Assert::assert('a', 'var')->glob(false);
// EXCEPTION: var MUST be string
Assert::assert(5, 'var')->glob('/a/');

length($length) Check if value has length exactly $length

Arguments:

• $length MUST be integer >= 0

// OK
Assert::assert('aa', 'var')->length(2);
// EXCEPTION
Assert::assert('bb', 'var')->length(5);
// ----------
// EXCEPTION: length MUST be int
Assert::assert('a', 'var')->length(null);
// EXCEPTION: length MUST be more >= 0
Assert::assert('a', 'var')->length(-2);
// EXCEPTION: var MUST be string
Assert::assert(5, 'var')->length(1);

lengthLess($length) Check if value has length less than $length

• Antipode: lengthMore

Arguments:

• $length MUST be integer > 0

// OK
Assert::assert('aa', 'var')->lengthLess(5);
Assert::assert('bb', 'var')->lengthMore(1);
// EXCEPTION
Assert::assert('bb', 'var')->lengthLess(1);
Assert::assert('aa', 'var')->lengthMore(5);
// ----------
// EXCEPTION: length MUST be int
Assert::assert('a', 'var')->lengthLess(null);
Assert::assert('a', 'var')->lengthMore(null);
// EXCEPTION: length MUST be more >= 0
Assert::assert('a', 'var')->lengthLess(-2);
Assert::assert('a', 'var')->lengthMore(-2);
// EXCEPTION: var MUST be string
Assert::assert(5, 'var')->lengthLess(1);
Assert::assert([], 'var')->lengthMore(1);

lengthBetween($from, $to) Check that value length is $from <= $value <= $to

Arguments:

• $from MUST be integer >= 0
• $to MUST be integer >= 0
• $from MUST less than $to

// OK
Assert::assert('aa', 'var')->lengthBetween(1, 5);
// EXCEPTION
Assert::assert('bb', 'var')->lengthBetween(3, 10);
// ----------
// EXCEPTION: form MUST be int
Assert::assert('a', 'var')->lengthBetween(null, 5);
// EXCEPTION: to MUST be int
Assert::assert('a', 'var')->lengthBetween(1, []);
// EXCEPTION: form MUST be more >= 0
Assert::assert('a', 'var')->lengthBetween(-2, 5);
// EXCEPTION: form MUST be more than to
Assert::assert('a', 'var')->lengthBetween(5, 1);
// EXCEPTION: var MUST be string
Assert::assert(5, 'var')->lengthBetween(1);

Number asserts (int or float)

All number MUST be int or float

positive Check if value is positive (not 0)

• Antipode: negative Check if value is negative (not 0)

// OK
Assert::assert(1, 'var')->positive();
Assert::assert(-5, 'var')->negative();
// EXCEPTION
Assert::assert(-1, 'var')->positive();
Assert::assert(0, 'var')->positive();
Assert::assert(10, 'var')->negative();
Assert::assert(0, 'var')->negative();
// ----------
// EXCEPTION: var MUST be int or float
Assert::assert('A', 'var')->positive();
Assert::assert([], 'var')->negative();

less($number) Check if value is $value <= $number

• Similar: lessStrict Check that value is $value < $number
• Antipode: more Check that value is $value >= $number
• Antipode: moreStrict Check that value is $value > $number

Arguments:

• $number MUST be integer or float

// OK
Assert::assert(1, 'var')->less(2);
Assert::assert(10, 'var')->more(5);
// EXCEPTION
Assert::assert(10, 'var')->less(5);
Assert::assert(1, 'var')->more(2);
// ----------
// EXCEPTION: length MUST be int or float
Assert::assert(1, 'var')->less(null);
Assert::assert(1, 'var')->more(null);
// EXCEPTION: var MUST be int or float
Assert::assert('A', 'var')->less(1);
Assert::assert([], 'var')->more(1);

between($from, $to) Check that value is $from <= $value <= $to

• Similar: betweenStrict Check that value is $from < $value < $to

Arguments:

• $from MUST be int or float
• $to MUST be int or float
• $from MUST less than $to

// OK
Assert::assert(2, 'var')->between(1, 5);
// EXCEPTION
Assert::assert(2.5, 'var')->between(3, 10);
// ----------
// EXCEPTION: form MUST be int
Assert::assert(2, 'var')->between(null, 5);
// EXCEPTION: to MUST be int
Assert::assert(2, 'var')->between(1, []);
// EXCEPTION: form MUST be more than to
Assert::assert(2, 'var')->between(5, 1);
// EXCEPTION: var MUST be int or float
Assert::assert('A', 'var')->between(1);

Array asserts

hasKey($key) Check if array key exists

Arguments:

• $key MUST be string or int

// OK
Assert::assert(['a' => 'b', 'c' => 'd'], 'data')->hasKey('a');
// EXCEPTION
Assert::assert(['a' => 'b', 'c' => 'd'], 'data')->hasKey('e');
// ----------
// EXCEPTION: data MUST be an array
Assert::assert('notArray', 'data')->hasKey(1);
// EXCEPTION: key MUST be string or int
Assert::assert(['a' => 'b', 'c' => 'd'], 'data')->hasKey(null);

count($count) Check if array elements count is same as $count

Arguments:

• $count MUST be int and greater than 0

// OK
Assert::assert(['a', 'b', 'c'], 'data')->count(3);
// EXCEPTION
Assert::assert(['a', 'c', 'd'], 'data')->count(1);
// ----------
// EXCEPTION: data MUST be an array
Assert::assert('notArray', 'data')->hasKey(1);
// EXCEPTION: count MUST be int
Assert::assert(['a', 'c', 'd'], 'data')->count(null);
// EXCEPTION: count MUST be greater than 0
Assert::assert(['a', 'c', 'd'], 'data')->count(-5);

LOOP ASSERTS API

forList Run callable function for each element in list

// OK
$data = [1, 2, 3, 4, 5];
Assert::assert($data, 'data')->forList(
    function (Assert $assert) {
        $assert->int()->positive();
    }
);
// ----------
// EXCEPTION: data MUST be array
Assert::assert('some data', 'data')->forList(
    function (Assert $assert) {}
);
// EXCEPTION: $data: key 'a' MUST be int
Assert::assert(['a' => 'b'], 'data')->forList(
    function (Assert $assert) {}
);

forMap Run callable function for each element in map

Attention: arrays like ['1' => 'a', '2' => 'b'] php will convert to [1 => 'a', 2 => 'b']

// OK
$data = ['A' => 'A1', 'B' => 'B1', 'C' => 'C1'];
Assert::assert($data, 'data')->forMap(
    function (Assert $keyAssert, Assert $valueAssert) {
        $keyAssert->lengthMore(1);
        $valueAssert->lengthMore(1);
    }
);
// ----------
// EXCEPTION: data MUST be array
Assert::assert('some data', 'data')->forMap(
    function (Assert $keyAssert, Assert $valueAssert) {}
);

CAST API

get Returns value as is

// RETURN 'a'
Assert::assert('a', 'var')->get();

toBool Converts any type to bool

// RETURN true
Assert::assert('a', 'var')->toBool()->get();

toFloat Converts any type (except array) to float

Value MUST NOT be array

// RETURN 0.0
Assert::assert('a', 'var')->toFloat()->get();
// RETURN -15.2
Assert::assert('-15.2', 'var')->toFloat()->get();
// ----------
// EXCEPTION: var MUST NOT be array
Assert::assert([], 'var')->toFloat()->get();

toInt Converts any type (except array) to int

Value MUST NOT be array

// RETURN 0
Assert::assert('a', 'var')->toInt()->get();
// RETURN -15
Assert::assert('-15.2', 'var')->toInt()->get();
// ----------
// EXCEPTION: var MUST NOT be array
Assert::assert([], 'var')->toInt()->get();

toString Converts any type (except array) to string

Value MUST NOT be array

// RETURN ''
Assert::assert(false, 'var')->toString()->get();
// RETURN '-15'
Assert::assert(-15, 'var')->toString()->get();
// ----------
// EXCEPTION: var MUST NOT be array
Assert::assert([], 'var')->toString()->get();

Testing

Run tests from console

make test