Why is \'mysqli_fetch_all() Not a Valid Function\' Error Occurring in PHP?

Handling "mysqli_fetch_all() Not a Valid Function" Error in PHP

If you encounter an error indicating that mysqli_fetch_all() is not a valid function, it's likely due to your PHP version being outdated. mysqli_fetch_all() was introduced in PHP 5.3.0, so versions 5.2.17 and earlier will not support this function.

Resolution:

As suggested by your previous troubleshooting, the solution is to resort to mysqli_fetch_assoc() with a while loop. The following code snippet demonstrates how to retrieve rows one by one using mysqli_fetch_assoc():

while ($row = $result->fetch_assoc()) {
    // Process the associative array containing a single row
}

This loop will continue iterating through the result set, assigning each row to the $row variable as an associative array.

Custom Array Conversion:

Alternatively, if you prefer to create your own associative array, you can use the following approach:

$result_array = array();
while ($row = $result->fetch_row()) {
    $result_array[] = array_combine($fields, $row);
}

This code snippet retrieves rows using mysqli_fetch_row(), which returns a numerically indexed array. The array_combine() function associates the field names (retrieved from $result->fetch_table_columns()) with the corresponding values in $row, effectively creating an associative array for each row.

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