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  1. <?php
  2. error_reporting(-1);
  3. mb_internal_encoding('utf-8');
  4. $text = "лол";
  5. $count = (mb_strlen($text));
  6. echo "$count";
  7. ?>
Runtime error #stdin #stdout #stderr 0.04s 23428KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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PHP Fatal error:  Uncaught Error: Call to undefined function mb_internal_encoding() in /home/0uGWDn/prog.php:3
Stack trace:
#0 {main}
  thrown in /home/0uGWDn/prog.php on line 3
https://ideone.com/3AVDz2
language:
PHP (php 7.3.5)
created:
7 years ago
visibility:
public

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