Allow to disable pwd special characters

Author: pH-7

README.md

@@ -24,6 +24,14 @@ use PH7\Generator\Password;
 echo Password::generate(10); // Generate a 10 length password
 ````
 
+By default, the password will contain special characters. You can disable them by mentioning the second argument to `false`
+```php
+use PH7\Generator\Password;
+
+// The password won't contain any special characters such as -, _, ~, |, %, ^, !, $, #, @, and ?
+echo Password::generate(Password::DEFAULT_LENGTH, false);
+````
+
 You can use the public constant `Password::DEFAULT_LENGTH` which contains `12` as the default value
 
 ```php

src/Generator/Password.php

@@ -16,17 +16,20 @@ class Password
      * Generate password.
      *
      * @param int $iLength
+     * @param bool $bSpecialCharacters
      *
      * @return string
      */
-    public static function generate($iLength)
+    public static function generate($iLength = self::DEFAULT_LENGTH, $bSpecialCharacters = true)
     {
         $sWord = '';
+        $aSpecialChars = $bSpecialCharacters ? self::SPECIAL_CHARACTERS : [];
+
         $aKeys = array_merge(
             range(0, 9),
             range('a', 'z'),
             range('Z', 'Z'),
-            self::SPECIAL_CHARACTERS
+            $aSpecialChars
         );
 
         for ($iAmount = 0; $iAmount < $iLength; $iAmount++) {