diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,2 @@
-# tools
+# toolkit
 My most frequently used tools in programming
diff --git a/plural/README.md b/plural/README.md
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+# Функция изменения формы слов в зависимости от числительного
+
+Часто встречается задача вывода правильного окончания слова с предшествующим ему числом. 
+
+Например:
+
+- 1 депутат
+- 2–4 депутат**а**
+- 0, 5-9 или 10 депутат**ов**
+
+## Примеры исользования
+
+### Typescript
+```typescript
+import { plural } from 'plural';
+
+const totalOrders = 2;
+
+const words = ['заказ', 'заказа', 'заказов'];
+
+const result = `${totalOrders} ${plural(totalOrders, words)}`;
+
+console.log(result); // 2 заказа
+```
+
+### PHP
+```php
+include 'plural.php';
+
+$totalOrders = 2;
+
+$words = ['заказ', 'заказа', 'заказов'];
+
+$result = "{$totalOrders} {plural($totalOrders, $words)}";
+
+echo result; // 2 заказа
+```
diff --git a/plural/php/index.php b/plural/php/index.php
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+<?php
+
+function plural(int $count, array $words)
+{
+  $cases = [2, 0, 1, 1, 1, 2];
+  return $words[
+    $count % 100 > 4 && $count % 100 < 20 ? 2 : $cases[min($count % 10, 5)]
+  ];
+}
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diff --git a/plural/typescript/index.ts b/plural/typescript/index.ts
new file mode 100644
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+++ b/plural/typescript/index.ts
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+export type WordForms = [string, string, string];
+
+export const plural = (count: number, words: WordForms): string => {
+    const cases = [2, 0, 1, 1, 1, 2];
+    return words[
+      count % 100 > 4 && count % 100 < 20 ? 2 : cases[Math.min(count % 10, 5)]
+    ];
+  };
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