大约有 13,922 项符合查询结果（耗时：0.0405秒） [XML]
Are PDO prepared statements sufficient to prevent SQL injection?
...rt off by showing the attack...
$pdo->query('SET NAMES gbk');
$var = "\xbf\x27 OR 1=1 /*";
$query = 'SELECT * FROM test WHERE name = ? LIMIT 1';
$stmt = $pdo->prepare($query);
$stmt->execute(array($var));
In certain circumstances, that will return more than 1 row. Let's dissect what's go...
Python loop that also accesses previous and next values
...n I iterate over a list of objects, accessing the previous, current, and next items? Like this C/C++ code, in Python?
14 An...
Download large file in python with requests
...lename
Note that the number of bytes returned using iter_content is not exactly the chunk_size; it's expected to be a random number that is often far bigger, and is expected to be different in every iteration.
See https://requests.readthedocs.io/en/latest/user/advanced/#body-content-workflow and...
Recommended website resolution (width and height)? [closed]
...
The advice these days is:
Optimize for 1024x768. For most sites this will cover most visitors. Most logs show that 92-99% of your visits will be over 1024 wide. While 1280 is increasingly common, there are still lots at 1024 and some below that. Optimize for this but ...
How expensive is RTTI?
... RTTI, but how big is it? Everywhere I've looked just says that "RTTI is expensive," but none of them actually give any benchmarks or quantitative data reguarding memory, processor time, or speed.
...
OrderBy descending in Lambda expression?
I know in normal Linq grammar, orderby xxx descending is very easy, but how do I do this in Lambda expression?
6 Answers
...
Static extension methods [duplicate]
Is there any way I can add a static extension method to a class.
4 Answers
4
...
Why is SELECT * considered harmful?
...ially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the original consumers coded their data access.
Indexing issues. Consider a scenario where you want to tune a query to a high level of performance. If you were to use *, and it returned more col...
Is D a credible alternative to Java and C++? [closed]
...o support in any modern IDEs (there are plugins for both Visual Studio and Xamarin Studio/MonoDevelop), limited dynamic/shared library support, and few bindings to other languages, D is simply not an option today.
If you like what you see of D, by all means, learn it - it shouldn't take long if you...
How Do You Clear The IRB Console?
...
On Mac OS X or Linux you can use Ctrl + L to clear the IRB screen.
share
|
improve this answer
|
follow
...