Can mysqli_fetch_array() Be Used Multiple Times on the Same Result?

Patricia Arquette
Release: 2024-11-03 03:39:31
Original
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Can mysqli_fetch_array() Be Used Multiple Times on the Same Result?

Multiple Applications of mysqli_fetch_array() on the Same Result

Encountering limitations while attempting to utilize mysqli_fetch_array() repeatedly on the same result is a common issue.

Why it Fails

mysqli_fetch_array() is designed to retrieve the next row from a result set, advancing the internal pointer. By using it twice, you move past the end of the data.

Solution: Data Manipulation vs. Output

It is essential to separate data manipulation from output. Instead of fetching and displaying data simultaneously, execute the following steps:

1. Select and Store the Data

Retrieve the data from the database using mysqli_query() and store it in an array:

$db_res = mysqli_query($db_link, $sql);
$data = [];

while($row = mysqli_fetch_assoc($db_res)) {
    $data[] = $row;
}
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2. Use the Data Multiple Times

Utilize the stored data as many times as needed:

// Top row
foreach($data as $row) {
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