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Cached, PHP generated Thumbnails load slowly
... cool tool cuzillion that could help you sort out things depending on your ordering of ressource loading.
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廉价共享存储解决方案1-drbd+ha+nfs - 更多技术 - 清泛网 - 专注C/C++及内核技术
...没有共享存储的情况下解决非结构化数据高可靠性存储的问题1、问题产生背景三台TOMCAT 服务器通过负载均衡设备对外提供WEB服务。怎么保证...在没有共享存储的情况下解决非结构化数据高可靠性存储的问题
1、问题产生背景
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In php, is 0 treated as empty?
...aning of without value. Like the others said you'll have to use isset() in order to check if a variable has been defined, which is what you do.
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select count(*) from table of mysql in php
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You need to alias the aggregate using the as keyword in order to call it from mysql_fetch_assoc
$result=mysql_query("SELECT count(*) as total from Students");
$data=mysql_fetch_assoc($result);
echo $data['total'];
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iOS开发调试技巧总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...跑到出现异常的代码中呢???异常断点就为我们解决该问题,程序就会在异常出现的那行代码终止。创建异常断点图例如下:
如下所示就创建完成了。如果碰到异常crash时,尝试使用异常断点吧。
【4.符号断点Symbolic Breakp...
Calling a function within a Class method?
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In order to have a "function within a function", if I understand what you're asking, you need PHP 5.3, where you can take advantage of the new Closure feature.
So you could have:
public function newTest() {
$bigTest = funct...
Lua简明教程 - 脚本技术 - 清泛IT论坛,有思想、有深度
...浮点数会慢(除非大于100,000,000,000,000),或是会有精度问题。你可以以如下的方式表示数字,0x开头的16进制和C是很像的。num = 1024
num = 3.0
num = 3.1416
num = 314.16e-2
num = 0.31416E1
num = 0xff
num = 0x56复制代码
字符串你可以用单引号,也...
Are global variables in PHP considered bad practice? If so, why?
...se that global variable, and not only that, you have to figure out in what order those references to the global variable are accessed.
If you have a global variable in a piece of code it makes it difficult to isolate the functionality of that code. Why would you want to isolate functionality? So yo...
PHP 5.4 Call-time pass-by-reference - Easy fix available?
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Are PDO prepared statements sufficient to prevent SQL injection?
...statements / parameterized queries are generally sufficient to prevent 1st order injection on that statement*. If you use un-checked dynamic sql anywhere else in your application you are still vulnerable to 2nd order injection.
2nd order injection means data has been cycled through the database on...