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  1. <?php
  2. mb_internal_encoding('utf-8');
  3.  
  4. $string = "Привет";
  5. $first = mb_strtoupper(substr($string, 0, 1, 'utf-8'));
  6. $string[0] = $first;
  7. echo $string;
Success #stdin #stdout #stderr 0.02s 52432KB
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stdin
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Standard input is empty
stdout
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�ривет
stderr
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PHP Warning:  substr() expects at most 3 parameters, 4 given in /home/vCgsJT/prog.php on line 5
https://ideone.com/X2AhDq
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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