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  1. <?php 
  2. function isContinuousSequence($numbers)
  3. {
  4.     if (empty($numbers)) {
  5.         $foo = false;
  6.           //var_dump($foo); //$foo;
  7.         return $foo;
  8.     } else {
  9.         $foo = true;
  10.         for ($i = 0; $i < count($numbers) - 1; $i++) {
  11.             if (($numbers[$i] - ($numbers[$i + 1]) == -1)) {
  12.                 continue;
  13.             } else {
  14.                 $foo = false;
  15.                 break;
  16.             }
  17.         }
  18.     }
  19.    // var_dump($foo);
  20.     return $foo;
  21. }
  22.  
  23. echo isContinuousSequence([10, 11, 12, 13]); // => true
  24. echo '<br>';
  25. echo isContinuousSequence([10, 11, 12, 14, 15]); // => false
  26. echo '<br>';
  27. echo isContinuousSequence([]); // => false
  28. echo '<br>';
  29. echo isContinuousSequence([0, 1, 2, 3]);// => true
  30. echo '<br>';
  31. echo isContinuousSequence([-5, -4, -3]);// => true
  32. echo '<br>';
  33. echo isContinuousSequence([10, 11, 12, 13]);// => true
  34. echo '<br>';
  35. echo isContinuousSequence([10, 11, 12, 14, 15]);// => false
Success #stdin #stdout 0.02s 23768KB
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1<br><br><br>1<br>1<br>1<br>
https://ideone.com/M1Bxrb
language:
PHP (php 7.3.5)
created:
6 years ago
visibility:
secret

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