103 lines
3.3 KiB
PHP
103 lines
3.3 KiB
PHP
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<?php
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class Validator {
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private $errors = [];
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private $data = [];
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public function __construct(array $data) {
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$this->data = $data;
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}
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public function validate(array $rules) {
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foreach ($rules as $field => $fieldRules) {
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foreach ($fieldRules as $rule => $parameter) {
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$this->applyRule($field, $rule, $parameter);
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}
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}
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return empty($this->errors);
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}
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private function applyRule($field, $rule, $parameter) {
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$value = $this->data[$field] ?? null;
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switch ($rule) {
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case 'required':
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if ($parameter && empty($value)) {
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$this->addError($field, "Field is required");
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}
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break;
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case 'email':
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if (!empty($value) && !filter_var($value, FILTER_VALIDATE_EMAIL)) {
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$this->addError($field, "Invalid email format");
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}
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break;
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case 'min':
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if (!empty($value) && strlen($value) < $parameter) {
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$this->addError($field, "Minimum length is $parameter characters");
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}
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break;
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case 'max':
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if (!empty($value) && strlen($value) > $parameter) {
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$this->addError($field, "Maximum length is $parameter characters");
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}
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break;
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case 'numeric':
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if (!empty($value) && !is_numeric($value)) {
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$this->addError($field, "Must be a number");
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}
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break;
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case 'phone':
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if (!empty($value) && !preg_match('/^[+]?[\d\s-()]{7,}$/', $value)) {
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$this->addError($field, "Invalid phone number format");
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}
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break;
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case 'url':
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if (!empty($value) && !filter_var($value, FILTER_VALIDATE_URL)) {
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$this->addError($field, "Invalid URL format");
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}
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break;
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case 'date':
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if (!empty($value)) {
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$date = date_parse($value);
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if ($date['error_count'] > 0) {
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$this->addError($field, "Invalid date format");
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}
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}
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break;
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case 'in':
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if (!empty($value) && !in_array($value, $parameter)) {
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$this->addError($field, "Invalid option selected");
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}
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break;
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case 'matches':
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if ($value !== ($this->data[$parameter] ?? null)) {
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$this->addError($field, "Does not match $parameter field");
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}
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break;
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}
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}
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private function addError($field, $message) {
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if (!isset($this->errors[$field])) {
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$this->errors[$field] = [];
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}
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$this->errors[$field][] = $message;
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}
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public function getErrors() {
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return $this->errors;
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}
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public function hasErrors() {
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return !empty($this->errors);
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}
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public function getFirstError() {
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if (!$this->hasErrors()) {
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return null;
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}
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$firstField = array_key_first($this->errors);
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return $this->errors[$firstField][0];
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}
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}
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