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Two functions for splitting arrays in php (array_slice(), array_splice())

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Release： 2016-07-25 09:04:34
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  3. $input = array("a", "b", "c", "d", "e");

  4. $output = array_slice($input, -2, 1); // returns "d"
  5. $ output = array_slice($input, 0, 3); // returns "a", "b", and "c"

  6. // note the differences in the array keys

  7. print_r(array_slice ($input, 2, -1));
  8. print_r(array_slice($input, 2, -1, true));
  9. ?>

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The above example will output : Array ( [0] => c [1] => d ) Array ( [2] => c [3] => d )

2.array_splice()

Carries three parameters, the same as above, and its function is to delete the subarray with length starting from offset.

Example:

  4. $input = array("red", "green", "blue", "yellow");
  5. array_splice($input, 2);
  6. // $input is now array("red", "green")

  7. $input = array("red", "green", "blue", "yellow");

  8. array_splice($ input, 1, -1);
  9. // $input is now array("red", "yellow")

  10. $input = array("red", "green", "blue ", "yellow");

  11. array_splice($input, 1, count($input), "orange");
  12. // $input is now array("red", "orange")

  13. < ;p>$input = array("red", "green", "blue", "yellow");
  14. array_splice($input, -1, 1, array("black", "maroon"));
  15. / / $input is now array("red", "green",
  16. // "blue", "black", "maroon")

  17. $input = array("red", " green", "blue", "yellow");

  18. array_splice($input, 3, 0, "purple");
  19. // $input is now array("red", "green",
  20. // "blue" , "purple", "yellow");
  21. ?>

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php拆分数组的二个函数(array_slice()、array_splice())
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