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  1. <?php
  2.  
  3. class StringBuilder
  4. {
  5.  
  6.     protected $string;
  7.  
  8.     public function __construct()
  9.     {
  10.         $this->string = "";
  11.     }
  12.  
  13.     public function set($str)
  14.     {
  15.         if (mb_detect_encoding($str) != "UTF-8") {
  16.             $this->string = iconv(mb_detect_encoding($str), "UTF-8", $str);
  17.         } else {
  18.             $this->string = $str;
  19.         }
  20.     }
  21.  
  22.     public function changeEncod($enc)
  23.     {
  24.         $this->string = iconv(mb_detect_encoding($str), $enc, $str);
  25.     }
  26.  
  27.     public function getLength()
  28.     {
  29.         return mb_strlen($this->string);
  30.     }
  31.  
  32.     public function chatAt($c)
  33.     {
  34.         return mb_substr($this->string, $c, 1);
  35.     }
  36.  
  37.     public function concat($param)
  38.     {
  39.         $this->string += $param;
  40.     }
  41.  
  42.     public function __toString()
  43.     {
  44.         return $this->string;
  45.     }
  46.  
  47. }
  48.  
  49. $str = new StringBuilder();
  50. $str->set("строка");
  51. $str->changeEncod("ASCII");
  52. if (mb_detect_encoding($str) != "UTF-8") {
  53.     echo "не ютф";
  54. }
Success #stdin #stdout 0.01s 52488KB
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https://ideone.com/UoEV5H
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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