PHP supports the concept of variable functions. This means that if a variable name is followed by parentheses, PHP will look for a function with the same name as the value of the variable and try to execute it. Variable functions can be used to
1. Modify three items in the PHP configuration file: Vim/usr/local/php/etc/php.ini
(1) post_max_size = 50M #PHP可接受的最大POST数据
(2) upload_max_filesize = 50M #文件上传允许的最大值
(3) Max_execution_time = #每个脚本的最大执行时间, seconds (0 is not limited, do not
This article describes the PHP to get the current page URL function example, share for everyone to reference. The implementation methods are as follows:
In PHP, there is no default function to get the URL of the current page, so today we're going
The example of this article describes the PHP custom APK installation package method, share for everyone to reference. The implementation methods are as follows:
As we all know, the APK format installation file is an Android Smart system
Today in csdn see a PHP output blank stealth character 65279 problem, found on the Internet under, send this 65279 characters is PHP to mark the file is utf-8 encoded, the output will be output together to the client, resulting in the client if
Work needs to scale some GIF and then go to Imagecopymerge, but found that the use of Imagecreatetruecolor and imagecopyresampled later found that the background map is not right, the original transparent background image into black, It was later
The function used is Curl_init, curl_setopt, Curl_exec,curl_close.
The default is the Get method, which allows you to choose whether to use headers:
$ch = Curl_init ();
curl_setopt ($ch, Curlopt_url, "$url");
curl_setopt ($ch, Curlopt_timeout,
The memcached client installation steps for installing PHP are described below
1. Download and install libmemcached clientWebsite address: http://libmemcached.org/libMemcached.html
$wget-C
What is the difference between PHP function method_exists () and is_callable ()? In the design process of PHP object-oriented object, we often need to call a certain method to belong to a certain class when the judgment, commonly used methods have
PHP Gets the function and server variables for the current URL path:
Code:
Copy Code code as follows:
$path =/usr/opt/. /ECT/ABCD;
echo $_server[' Document_root ']. " "; Get the server document root variable (depending on the
It is also able to optimize scripts to speed up their execution. Using Eaccelerator can reduce server load and increase the execution time of PHP code.
Eaccelerator configuration options:
Copy Code code as follows:
Zend_extension_ts=
The example of this article describes the Phpmailer usage of the PHP mail sending class, and details its detailed operation steps. Share to everyone for your reference. The specific steps are as follows:
1. Install SendMail on the server
In this section, let's look at a less common but powerful PHP feature: FILTERS, which can be used to validate (validation) and error correction (sanitization)When a data source contains unknown or indeterminate data, it becomes useful, at most, for
1. Try to be static:If a method can be static, then declare it static, speed can be increased by 1/4, even when I test, this improved nearly three times times.Of course, this test method needs to be performed above level 100,000, the effect is
Recently, there are Buboyu asked php.ini which directory? or modify the php.ini after why not effective? Based on the above two questions, I think it is necessary to teach the friends who have just contacted PHP how to find the path directory of PHP
Paging function is a very common function of PHP programming, unlike in the past, today This article describes PHP is based on the array implementation of the paging function.
About the paging function of an array, the advantage of using an array
When writing the PHP template Engine tool class, a previously used regular substitution function of preg_replace (), plus the regular modifier/e, can perform powerful callback functions that implement template engine compilation (in fact, string
Recently, a PHP project used to limit the logon time function, such as the user login system after 60 Minutes if there is no operation to automatically exit, I searched the network has collected the following methods available for reference.
The
The following code for PHP to remove all file BOM information for the current directory and subdirectories, create a new file, put it down in the root directory, and then access the browser.
"; else {$dirname = $basedir. "/" .
$file;
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