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  1. <?php
  2. $results = [];
  3.  
  4. while (($line = fgets(STDIN)) !== false) {
  5.     $line = rtrim($line);
  6.     $charMap = [];
  7.  
  8.     foreach (str_split($line) as $char) {
  9.         if (isset($charMap[$char])) {
  10.             $results[] = $line;
  11.             break;
  12.         }
  13.  
  14.         $charMap[$char] = 1;
  15.     }
  16. }
  17.  
  18. foreach ($results as $result) {
  19.     echo $result . PHP_EOL;
  20. }
Success #stdin #stdout 0.03s 26092KB
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Standard input is empty
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Standard output is empty
https://ideone.com/0e7yVu
language:
PHP (php 7.3.5)
created:
26 days ago
visibility:
public

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