How can you ensure that array index numbers count from zero upwards in PHP?

In PHP, array index numbers typically start from zero by default. To ensure that array index numbers count from zero upwards, you can use the array_values() function to re-index the array starting from zero. This function will create a new array with index numbers starting from zero and incrementing by one for each element. 

// Original array with non-zero index numbers
$array = array('a' => 'apple', 'b' => 'banana', 'c' => 'cherry');

// Re-index the array starting from zero
$reindexedArray = array_values($array);

// Output the re-indexed array
print_r($reindexedArray);

Keywords

array index numbers count zero

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