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Vendor h2lsoft
Package validator
Short Description Fluent data validator with chainable rules and i18n support
License MIT

Keywords php i18n data form validator validation

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Informations about the package validator

Validator

A fluent, chainable PHP data validator with built-in internationalization support.

Requirements

PHP >= 7.4 (PHP 8+ recommended)
ext-mbstring

Installation

Install via Composer:

Quick Start

Usage

Creating a validator

Defining rules

Chain rules fluently after selecting an input with input():

Checking results

Custom error messages

Every rule accepts an optional $message parameter:

Use [FIELD] placeholder to reference the field label:

Custom errors

Custom validation with callbacks

Use custom() for business logic that doesn't fit standard rules:

Available Rules

String / Value Rules

Rule	Description	Example
`required($msg)`	Must be present and not empty	`->required()`
`email($msg)`	Must be a valid email	`->email()`
`mask($mask, $msg)`	Must match a mask (`9`=digit, `a`=letter, `*`=any)	`->mask('99-aaa')`
`in($list, $msg)`	Value must be in the list	`->in(['a', 'b', 'c'])`
`notIn($list, $msg)`	Value must not be in the list	`->notIn(['x', 'y'])`
`integer($unsigned, $msg)`	Must be an integer	`->integer()`
`float($unsigned, $msg)`	Must be a float	`->float(false)`
`min($min, $msg)`	Value >= min (or array count)	`->min(1)`
`max($max, $msg)`	Value <= max (or array count)	`->max(100)`
`between($min, $max, $msg)`	Value between min and max	`->between(1, 10)`
`length($len, $msg)`	Exact character length	`->length(5)`
`minLength($len, $msg)`	Minimum character length	`->minLength(3)`
`maxLength($len, $msg)`	Maximum character length	`->maxLength(255)`
`equal($value, $msg)`	Must equal a given value	`->equal('yes')`
`accepted($msg)`	Must be `'yes'`, `'YES'` or `1`	`->accepted()`
`boolean($msg)`	Must be a boolean-like value (true/false/1/0/yes/no)	`->boolean()`
`password($min, $upper, $digit, $special, $msg)`	Password strength validation	`->password(8, true, true, true)`
`url($flags, $msg)`	Must be a valid URL	`->url()`
`alpha($exc, $latin, $min, $cap, $msg)`	Alphabetic only	`->alpha(' -')`
`alphaNumeric($exc, $latin, $min, $cap, $msg)`	Alphanumeric only	`->alphaNumeric('_')`
`date($format, $msg)`	Valid date	`->date('d/m/Y')`
`datetime($format, $msg)`	Valid datetime	`->datetime('d/m/Y H:i')`
`dateBefore($date, $format, $msg)`	Must be before a given date	`->dateBefore('2025-12-31', 'Y-m-d')`
`dateAfter($date, $format, $msg)`	Must be after a given date	`->dateAfter(date('Y-m-d'), 'Y-m-d')`
`time($format, $msg)`	Valid time	`->time('H:i')`
`timezone($msg)`	Valid timezone identifier	`->timezone()`
`country($msg)`	Valid ISO 3166-1 alpha-2 country code	`->country()`
`language($msg)`	Valid ISO 639-1 language code	`->language()`
`currency($msg)`	Valid ISO 4217 currency code	`->currency()`
`iban($msg)`	Valid IBAN with MOD-97 checksum	`->iban()`
`bic($msg)`	Valid BIC/SWIFT code (8 or 11 chars)	`->bic()`
`uuid($msg)`	Valid UUID (RFC 4122, v1-v5)	`->uuid()`
`macAddress($msg)`	Valid MAC address (colon or hyphen)	`->macAddress()`
`cssColor($msg)`	Valid CSS color (hex, rgb, hsl, named)	`->cssColor()`
`regex($pattern, $msg)`	Must match a regex	`->regex('/^\d+$/', 'Digits only')`
`notRegex($pattern, $msg)`	Must not match a regex	`->notRegex('/admin/i', 'Forbidden')`
`ip($flags, $msg)`	Valid IP address	`->ip()`
`ipV4($msg)`	Valid IPv4 address	`->ipV4()`
`ipV6($msg)`	Valid IPv6 address	`->ipV6()`
`json($msg)`	Valid JSON string	`->json()`
`jsonArray($msg)`	Valid JSON array (`[...]`)	`->jsonArray()`
`jsonObject($msg)`	Valid JSON object (`{...}`)	`->jsonObject()`
`sameAs($field, $msg)`	Must equal another field's value	`->sameAs('password')`
`different($field, $msg)`	Must differ from another field's value	`->different('old_password')`
`requiredIf($field, $value, $msg)`	Required only when another field matches	`->requiredIf('type', 'pro')`
`csrfToken($token, $msg, $regenerate)`	CSRF token validation (auto-regenerates on failure by default)	`->csrfToken()`
`custom($callback, $msg)`	Custom validation via callback	`->custom(fn($v) => $v > 10, 'Too low')`

Array Rules (checkboxes, multi-select)

Rule	Description	Example
`multiple($msg)`	Must be an array	`->multiple()`
`min($min, $msg)`	Minimum selections	`->min(2)`
`max($max, $msg)`	Maximum selections	`->max(5)`
`between($min, $max, $msg)`	Selections between min and max	`->between(1, 3)`

File Rules

Rule	Description	Example
`fileRequired($msg)`	File must be uploaded	`->fileRequired()`
`fileExtension($ext, $msg)`	Allowed extensions	`->fileExtension(['jpg', 'png'])`
`fileMaxSize($size, $msg)`	Max file size (kb, mb, gb)	`->fileMaxSize('2mb')`
`fileImage($ext)`	Must be an image	`->fileImage()`
`fileMime($mimes, $msg)`	Allowed MIME types	`->fileMime(['application/pdf'])`
`fileUploaded($msg)`	Must be a real upload	`->fileUploaded()`
`fileImageWidth($w, $strict, $msg)`	Image width constraint	`->fileImageWidth(800, true)`
`fileImageHeight($h, $strict, $msg)`	Image height constraint	`->fileImageHeight(600, true)`
`fileImageBase64($ext, $create, $msg)`	Validate base64 image	`->fileImageBase64('png')`

Internationalization

Supported locales

Code	Language
`en`	English (default)
`fr`	French
`es`	Spanish
`pt`	Portuguese
`de`	German
`it`	Italian

Setting the locale

Adding custom translations

Utility Methods

Method	Description
`setData(array $data)`	Replace the data to validate
`inputGet($name, $default)`	Get a value from the data
`inputSet($name, $value)`	Set a value in the data
`inputGetAll()`	Get all data values
`setInputNames(array $names)`	Set display labels for multiple fields
`setInputName($name, $label)`	Set a display label for one field
`hasErrors()`	Get the error count
`toJson($flags)`	Get result as JSON (auto-sets Content-Type header)
`reset()`	Reset errors and state for reuse with new data

Full Example

License

MIT. See full license.

All versions of validator with dependencies

PHP Build Version

Package Version

Version v2.0.0 Release 23. Feb 2026
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Requires php Version >=7.4
ext-mbstring Version *

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