Here take cve-2016-5734 to talk about the preg_replace of the command execution vulnerability, the vulnerability on the EXPLOIT-DB has a use of scripting, tested no problem. Here is a retrospective trace of this vulnerability to explain the problem
1 absolute, relative, and indeterminate paths
Relative path
A relative path refers to a path that begins with a.
./a/a.php (relative to current directory)
.. /common.inc.php (relative superior directory),
Absolute path
Absolute path is
I will use the Windows system device as a PC, after all, blog for Chinese users, most of the home device or use of Windows system
The principle is to determine the user AGENT submitted by the browser
The code is as follows
Copy Code
Jpgraph Introduction
In the past, the use of PHP to draw a complex abstract drawing function must be mastered, or the use of some online download style, pie chart class to achieve. There is no unified chart class to implement the rapid
Today we are going to do a PHP configuration tutorial, support MySQL database, may even configure the environment on a few, very easy, but I hope we look carefully, because a lot of steps to be careful, or take a wrong step, it will cause the entire
This article describes the PHP implementation of micro-scan code automatic landing and registration function. Share to everyone for your reference, specific as follows:
Micro-credit development is now a programmer must master a basic technology, in
This example describes the PHP template engine smarty built-in function Foreach,foreachelse usage. Share to everyone for your reference, specific as follows:
In the Smarty template, you can use foreach to repeat a block. And in the template, you
The reading of the CSV large file has been described earlier (PHP reads by row, processing the code instance of the larger CSV file), but there are still some problems in how to quickly complete the operation of large files.
1, how to quickly get
The difference between 1.echo and printThe functions of ECHO and print are essentially the same in PHP (output), but there is a slight difference between the two. echo output does not return a value, but print has a return value that returns Flase
This example describes the PHP run Tip: Fatal error allowed memory size memory solution. Share to everyone for your reference. The specific methods are as follows:
Some friends a newly configured environment or a newly-written program of your own
Specifically looked at the next manual, about PHP magic quotes, a few common settings are as follows, Magic_quotes_gpc,magic_quotes_sybase,magic_quote_runtime, These functions are configured in PHP.ini, as can be seen from the manual, which has been
/*******echo********/echo-output one or more stringsDescribeEcho (String arg1 [, String ...])Echo () is not actually a function (it is a language structure), so you do not need to use parentheses. Echo () (unlike some other language constructs) is
The current market on the more popular PHP encryption authorization of the above software has two main types:
(1) Zend Company's Zendguard.
(2) Ioncube Company's Ioncube PHP Encode.
Zendguard can only encrypt files with PHP tags or source code
The role of exception handling
Exception handling is used to change the normal flow of a script when a specified error (exception) condition occurs.
Basic syntax for exception handling:
try{
Code for errors (exceptions) that may occur
}
Yii built-in CAPTCHA can basically meet most of the requirements, if you have special requirements for the verification code, you can customize the CAPTCHA, this is mainly through the expansion of ccaptchaaction to achieve, this example to customize
Php Reference & Usage Analysis [variable reference, function reference, object reference], php reference
This article analyzes the reference & Usage in php. We will share this with you for your reference. The details are as follows:
Php references
When I used php in my early years, I still didn't know the filter feature. At that time, I used regular expressions to determine whether the mailbox, url, and IP address format were consistent. Later, with the gradual development of the application,
As we all know, WordPress is a very popular CMS. Its ease of use, user interface and powerful functions allow us to build various types of websites, which are characteristic of developers and programmers, but as a user, there is no difference.As a
Thanks to Keyes for providing the Delphi source code for porting. The call method is $ txt = gbtobig5 ($ txt ).(Note: include "data_gb.php" in the source code; this file is an array, in bytes .)/*************************************** ***************
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