大约有 32,000 项符合查询结果（耗时：0.0261秒） [XML]
PHP 5: const vs static
In PHP 5, what is the difference between using const and static ?
7 Answers
7
...
What are the disadvantages of using persistent connection in PDO
...de persistent using the PDO::ATTR_PERSISTENT attribute. According to the php manual -
8 Answers
...
How to post data in PHP using file_get_contents?
I'm using PHP's function file_get_contents() to fetch contents of a URL and then I process headers through the variable $http_response_header .
...
What is 'YTowOnt9'?
Our (PHP) framework sometimes renders hidden inputs with value YTowOnt9 . I can't find that string anywhere in the (huge) codebase, and can't figure out where it came from. I decided to Google for that particular string, and the result surprised me. Over half a million - kind of random - hits. I ...
micro:bit 微控制器教程 · App Inventor 2 中文网
...感器数据监控
3. 双向通信
常见问题
Q: 扫描不到 micro:bit 设备？
Q: 连接失败？
Q: 无法接收温度数据？
Q: 控制指令无效？
扩展功能
1. 添...
Add a new column to existing table in a migration
...e a specific name to avoid clashing with existing models
for Laravel 3:
php artisan migrate:make add_paid_to_users
for Laravel 5+:
php artisan make:migration add_paid_to_users_table --table=users
You then need to use the Schema::table() method (as you're accessing an existing table, not crea...
boost::filesystem指南 - C/C++ - 清泛网 - 专注C/C++及内核技术
...统中的操作可以在多个进程中异步进行，这可能引起许多问题，也就是说文件系统不是串行系统。
文件系统具有很大的系统相关性，不同的操作系统提供了不同的文件系统，相同的操作系统也可以存在众多区别。这使得编写具...
Two-way encryption: I need to store passwords that can be retrieved
...there is much more to note...
How do I encrypt and decrypt a password in PHP?
See below for a strong class that takes care of everything for you:
What is the safest algorithm to encrypt the passwords with?
safest? any of them. The safest method if you're going to encrypt is to protect against ...
In PHP, what is a closure and why does it use the “use” identifier?
I'm checking out some PHP 5.3.0 features and ran across some code on the site that looks quite funny:
6 Answers
...
How do I implement basic “Long Polling”?
...rror 404 (to show error handling in the coming Javascript example)
msgsrv.php
<?php
if(rand(1,3) == 1){
/* Fake an error */
header("HTTP/1.0 404 Not Found");
die();
}
/* Send a string after a random number of seconds (2-10) */
sleep(rand(2,10));
echo("Hi! Have a random number: " . ...