How can array_values() help in maintaining the structure of JSON data in PHP?

When encoding PHP arrays to JSON, the keys of the array are included in the JSON output. This can lead to unexpected behavior when decoding the JSON data, as the keys may not be needed or desired. To maintain the structure of JSON data in PHP, you can use the `array_values()` function to re-index the array numerically, removing the keys and ensuring a consistent structure in the JSON output. 

$data = array(
    'key1' => 'value1',
    'key2' => 'value2',
    'key3' => 'value3'
);

$indexedData = array_values($data);

$jsonData = json_encode($indexedData);
echo $jsonData;

Keywords

array_values JSON data PHP data structure maintenance

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