strict declare return type. update some info

Author: inhere

composer.json

@@ -25,7 +25,6 @@
     }
   },
   "suggest": {
-    "inhere/simple-print-tool": "Very lightweight data printing tools",
     "inhere/php-validate": "Very lightweight data validate tool",
     "inhere/console": "a lightweight php console application library."
   }

src/ArrBuffer.php

@@ -34,31 +34,31 @@ public function __construct(string $content = '')
     /**
      * @param string $content
      */
-    public function write(string $content)
+    public function write(string $content): void
     {
         $this->body[] = $content;
     }
 
     /**
      * @param string $content
      */
-    public function append(string $content)
+    public function append(string $content): void
     {
         $this->write($content);
     }
 
     /**
      * @param string $content
      */
-    public function prepend(string $content)
+    public function prepend(string $content): void
     {
         array_unshift($this->body, $content);
     }
 
     /**
      * clear
      */
-    public function clear()
+    public function clear(): void
     {
         $this->body = [];
     }
@@ -74,7 +74,7 @@ public function getBody(): array
     /**
      * @param string[] $body
      */
-    public function setBody(array $body)
+    public function setBody(array $body): void
     {
         $this->body = $body;
     }
@@ -106,7 +106,7 @@ public function getDelimiter(): string
     /**
      * @param string $delimiter
      */
-    public function setDelimiter(string $delimiter)
+    public function setDelimiter(string $delimiter): void
     {
         $this->delimiter = $delimiter;
     }

src/ArrayHelper.php

@@ -456,7 +456,7 @@ public static function getValueByNodes(array $data, array $nodes, $default = nul
      * @param mixed               $value
      * @param string              $separator
      */
-    public static function setByPath(&$data, string $path, $value, string $separator = '.')
+    public static function setByPath(&$data, string $path, $value, string $separator = '.'): void
     {
         if (false === \strpos($path, $separator)) {
             $data[$path] = $value;
@@ -699,7 +699,7 @@ public static function flatten($array, $depth = INF): array
      * @param  array|string $keys
      * @return void
      */
-    public static function forget(&$array, $keys)
+    public static function forget(&$array, $keys): void
     {
         $original = &$array;
         $keys = (array)$keys;