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How to Free Inode Usage?
...trick. my problem was to have an incredible amount of sessions in the /lib/php/sessions directory. maybe somebody has the same problem
– SteMa
May 22 '12 at 14:51
2
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phpcms v9类别调用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
phpcms v9类别调用方法phpcms v9默认后台有类别管理，但是没有按照类别浏览的功能，本文正是为了弥补这个不足。phpcms v9默认后台有类别管理，但是没有按照类别浏览的功能，本文正是为了弥补这个不足。
在需要调用类别的地方...
The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
When I attempt to connect to a MySQL server from PHP, I see the following error:
1 Answer
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...机A ，B有两个可用路由要实现主备切换，当主防火墙出现问题的时候，可以自动切换到备防火墙上。第一台设备 ASG 425 支持OSPF...拓扑如下
主机A ，B有两个可用路由要实现主备切换，当主防火墙出现问题的时候，可以自动切换...
MySQL, Check if a column exists in a table with SQL
...his works well for me.
SHOW COLUMNS FROM `table` LIKE 'fieldname';
With PHP it would be something like...
$result = mysql_query("SHOW COLUMNS FROM `table` LIKE 'fieldname'");
$exists = (mysql_num_rows($result))?TRUE:FALSE;
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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 ...
How to convert array values to lowercase in PHP?
How can I convert all values in an array to lowercase in PHP?
10 Answers
10
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How to pass an array within a query string?
...value fields or arrays would be:
?cars[]=Saab&cars[]=Audi (Best way- PHP reads this into an array)
?cars=Saab&cars=Audi (Bad way- PHP will only register last value)
?cars=Saab,Audi (Haven't tried this)
Form Examples
On a form, multi-valued fields could take the form of a select box set ...
deque iterator not dereferencable 问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
deque iterator not dereferencable 问题STL里面出现这个问题，纠结了半天，不知道什么原因。当然deque iterator not dereferencable。这个是deque出问题，vector、list也可以出...STL里面出现这个问题，纠结了半天，不知道什么原因。
当然deque iterat...
怎么解决MQTT连接掉线，自动连接问题，同时解决，反复断开连接，断开连接问...
解决MQTT退出后台后掉线自动连接问题，现在可以实现自动连接，但是在返回控制界面的时候，反复断开反复链接，还有切换页面的时候返回也是同样的问题，还有连接一个服务器，需要每个页面单独设置MQTT连接吗，是不是可以...