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  1. <?php
  2.  
  3. mb_internal_encoding("UTF-8");
  4. function mb_ucfirst($text) {
  5.     return mb_strtoupper(mb_substr($text, 0, 1)) . mb_substr($text, 1);
  6. }
  7.  
  8.  
  9. $str = 'строка1 строка2 строка3';
  10. $arr = explode(' ', $str);
  11. foreach($arr as $k=>&$word){
  12.    $word = '"' . mb_ucfirst($word) . '"';
  13. }
  14. echo implode(' ', $arr);
Success #stdin #stdout 0.01s 20520KB
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Standard input is empty
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"Строка1" "Строка2" "Строка3"
https://ideone.com/CUzffk
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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