How Can I Reorder Array Keys in PHP to Start from 0?

Reordering Array Keys with array_values

Encountering arrays with non-sequential keys can be a common scenario in programming. Consider an array like the one below, where the keys are not in the optimal order of 0, 1, 2, 3, and so on:

array(
  0 => 'val',
  2 => 'val',
  3 => 'val',
  5 => 'val',
  7 => 'val'
);

In situations like this, it becomes necessary to reset the keys to the desired sequence. PHP provides a convenient function called array_values specifically designed for this purpose.

The array_values function creates a new array with sequential keys starting from 0. It takes the original array as its argument and returns a new array with the values from the original array, but with keys set to consecutive integers.

$reindexed_array = array_values($old_array);

By using array_values, you can easily reindex your array, resulting in the following desired output:

array(
  0 => 'val',
  1 => 'val',
  2 => 'val',
  3 => 'val',
  4 => 'val'
);

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