validator

src/LengthValidator.php

@@ -0,0 +1,115 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: whwyy
+ * Date: 2018/4/3 0003
+ * Time: 17:04
+ */
+declare(strict_types=1);
+
+namespace validator;
+
+
+class LengthValidator extends BaseValidator
+{
+
+	const MAX_LENGTH = 'max';
+	const MIN_LENGTH = 'min';
+
+	public string $method;
+
+	public int $value;
+
+	/**
+	 * @return bool
+	 */
+	public function trigger(): bool
+	{
+		$param = $this->getParams();
+		if (empty($param) || !isset($param[$this->field])) {
+			if ($this->method != self::MAX_LENGTH) {
+				return $this->addError('The param :attribute not exists');
+			} else {
+				return TRUE;
+			}
+		}
+		$value = $param[$this->field];
+		if (is_null($value)) {
+			return $this->addError('The param :attribute is null');
+		}
+		return match (strtolower($this->method)) {
+			self::MAX_LENGTH => $this->maxLength($value),
+			self::MIN_LENGTH => $this->minLength($value),
+			default => $this->defaultLength($value),
+		};
+	}
+
+	/**
+	 * @param $value
+	 * @return bool
+	 *
+	 * 效验长度是否大于最大长度
+	 */
+	private function maxLength($value): bool
+	{
+		if (is_array($value)) {
+			if (count($value) > $value) {
+				return $this->addError('The param :attribute length overflow');
+			}
+		} else {
+			if (is_numeric($value) && strlen((string)$value) > $this->value) {
+				return $this->addError('The param :attribute length overflow');
+			}
+			if (strlen($value) > $this->value) {
+				return $this->addError('The param :attribute length overflow');
+			}
+		}
+		return TRUE;
+	}
+
+	/**
+	 * @param $value
+	 * @return bool
+	 *
+	 * 效验长度是否小于最小长度
+	 */
+	private function minLength($value): bool
+	{
+		if (is_array($value)) {
+			if (count($value) < $value) {
+				return $this->addError('The param :attribute length error');
+			}
+		} else {
+			if (is_numeric($value) && strlen((string)$value) < $this->value) {
+				return $this->addError('The param :attribute length overflow');
+			}
+			if (strlen($value) < $this->value) {
+				return $this->addError('The param :attribute length error');
+			}
+		}
+		return TRUE;
+	}
+
+	/**
+	 * @param $value
+	 * @return bool
+	 *
+	 * 效验长度是否小于最小长度
+	 */
+	private function defaultLength($value): bool
+	{
+		if (is_array($value)) {
+			if (count($value) !== $value) {
+				return $this->addError('The param :attribute length error');
+			}
+		} else {
+			if (is_numeric($value) && strlen((string)$value) !== $this->value) {
+				return $this->addError('The param :attribute length overflow');
+			}
+			if (mb_strlen($value) !== $this->value) {
+				return $this->addError('The param :attribute length error; ' . mb_strlen($value) . ':' . $this->value);
+			}
+		}
+		return TRUE;
+	}
+}