How to use php mysqli_fetch_lengths function

php mysqli_fetch_lengths() function returns the field length in the result set. The syntax is mysqli_fetch_lengths(result); if successful, the function returns an array of numbers. If there is an error or there are no other rows, it returns false.

php How to use the mysqli_fetch_lengths() function?

The mysqli_fetch_lengths() function returns the field length in the result set.

Syntax:

mysqli_fetch_lengths(result);

Parameters

result: Required. Specifies the result set identifier returned by mysqli_query(), mysqli_store_result(), or mysqli_use_result().

Return value: If successful, the function returns an array of numbers. If there is an error or there are no other rows, it returns false.

php mysqli_fetch_lengths() function example

Returns the field length in the result set:

$val)
    {
        printf("字段 %2d 长度为: %2d",$i+1,$val);
        echo "
";
    }
    
    // 释放结果集
    mysqli_free_result($result);
}
mysqli_close($con);
?>

The above is the detailed content of How to use php mysqli_fetch_lengths function. For more information, please follow other related articles on the PHP Chinese website!