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How to get the file extension in PHP? [duplicate]
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I don't recommend this. You are relying on the order of the array being the same years from now. It's a lazy solution that will most likely cause issues in the future.
– Wade
Jul 29 '16 at 20:14
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Is it possible to create static classes in PHP (like in C#)?
...push the session to the database.
Another advantage is you can ignore the order you call things as everything will be setup on demand.
class Factory {
static function &getDB ($construct_params = null)
{
static $instance;
if( ! is_object($instance) )
{
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How to use phpexcel to read data and insert into database?
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In order to read data from microsoft excel 2007 by codeigniter just create a helper function excel_helper.php and add the following in:
require_once APPPATH.'libraries/phpexcel/PHPExcel.php';
require_once APPPATH.'l...
using jquery $.ajax to call a PHP function
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How to get the client IP address in PHP [duplicate]
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I believe the code is missing some expression and the order of priorities is inversed, so it should be like this: $ip = $_SERVER['HTTP_CLIENT_IP']?$_SERVER['HTTP_CLIENT_IP']:($_SERVER['HTTP_X_FORWARDED_FOR']?$_SERVER['HTTP_X_FORWARDED_FOR']:$_SERVER['REMOTE_ADDR']); Nevertheless...
When to use static vs instantiated classes
... Framework. There are classes which use static method calls (factories) in order to build objects. It was impossible for me to supply another factory to that instance in order to get a customized object returned. The solution to this problem is to only use instances and instace methods and enforce s...
Get the client IP address using PHP [duplicate]
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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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理解和配置 Linux 下的 OOM Killer - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...经常死机，登陆到终端看了一下，都是常见的 Out of memory 问题。这通常是因为某时刻应用程序大量请求 最近有位 VPS 客户抱怨 MySQL 无缘无故挂掉，还有位客户抱怨 VPS 经常死机，登陆到终端看了一下，都是常见的 Out of memory 问...
How to read a large file line by line?
...ne before while $file->setFlags(SplFileObject::DROP_NEW_LINE); in order to drop newlines at the end of a line.
– elshnkhll
Nov 9 '15 at 18:22
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Why is  appearing in my HTML? [duplicate]
... Includes: If the included files are stored with BOM (e.g. UTF-8 with Byte Order Mark), there will be appearances of  in the file assembled by the webserver. Simple solution: Save the files as UTF-8 without Byte Order Mark.
– The Conspiracy
Apr 15 '...