Efficient php export of xls, csv methods often encounter the need to export data from the database to Excel files, using some open source class libraries, such as PHPExcel, is indeed easier to implement, however, the support for a large amount of
This article mainly introduces how PHP uses memory as a cache implementation method, analyzes the usage of memcached cache and compares the usage of APC, EC, Zend Accelerator, the need for friends can refer to.
Specific as follows:
In PHP the cache
In actual encoding, to view and operate the memory, many programmers first think of the PHP script memory function PHPmemory_get_usage (). below is the PHP memory_get_usage () Usage example:
The code is as follows:
Echo memory_get_usage (),'';
[PHP problem] PHPWarning: PHPStartup: Unabletoloaddynamiclibrary 'C:/AppServ \ php5 wrote a program for data import, when I found that the error log that cannot be loaded on the page is reported when the execution is half done, I found one?
PHP file download method 1. get the file path
GET the file path from $ _ GET ['file ']
$path_parts = pathinfo($_GET['file']);$file_name = $path_parts['basename'];$file_path = '/mysecretpath/' . $file_name;
You must use the above method to obtain
Failure phenomena
In Running a PHP program, you will typically encounter the "Fatal error:allowed memory size of xxxxxx bytes exhausted" error, which means that the PHP script uses too much memory and exceeds the maximum allowable memory set by
First of all, please do not misunderstand, not I want to publish what the research results on this issue, but I would like to ask you to help me to analyze this problem together:)
Describe the simplified issue background: In a PHP-implemented Web
I. mysql tutorial driver mysqlndFor a long time, the php tutorial is to connect to mysql through the mysql client, and now mysql has officially launched the php version of mysql client, and this mysqlnd effectively reduces memory usage and improves
PHP source code analysis: Zend HashTable, zendhashtable
Recently I read an article about hashtable in php. It is used to organize various constants, variables, functions, classes, and objects at the core of PHP Data Storage. Reprinted
PHP Memory Caching Technology
In many occasions, will hear memcached this name, but just heard, and have not used or actually understand, only know it is a very good stuff. As a brief introduction, memcached is an efficient and fast distributed
The first time to write a blog is very tense, sure enough to work when the brain more clear-minded. I am just a rookie, and there is no outline, presumably belongs to the scope of entertainment, light spray.Well, the first blog post on the water
How to modify PHP's memory_limit limitWhen you run a PHP program, you typically encounter the "Fatal error:allowed Memory size of xxxxxx bytes exhausted"Error, this means that the PHP script uses too much memory and exceeds the maximum allowed
Currently learning PHP a lot of friends, in peacetime routine development projects will always encounter a variety of problems, this experience to introduce PHP development in 10 of the most common problems, hope to be able to help friends.
Error 1:
From PHP4 to PHP5, from the personal development of language to professional Internet development, witnessing the development of PHP from the cottage to the regular army. PHP6 is still brewing, believe PHP5 will be as PHP6 small test the ground. PHP5
This article lists some of the more common mistakes we made in PHP programming, which are listed in 10.
Error 1:foreach Loop left hanging pointer
In a foreach loop, if we need to change the elements of an iteration or to improve efficiency, it's a
Suitable for what occasion
Memcached is not omnipotent and it is not applicable on all occasions.Memcached is a "distributed" Memory object caching system, that is, those that do not need to be "distributed", do not need to be shared, or simply
OverviewMemcache is a distributed caching system that is based on a network connection (which, of course, can also be done using localhost), which is itself an application-independent program or daemon (daemon mode).Local cacheMemcached is a
This article mainly introduces the PHP Streams (stream) detailed introduction and use, PHP Streams is a built-in core operation, may not be commonly used by developers, it is used for unified file, network, data compression and other types of file
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