When we configure the PHP environment will often write phpinfo (), this function to test whether the PHP environment is installed successfully, but often this function will also bring security risks to the system, so how to turn off this function?
When you log in PHP, or if the Ajax request is wrong, you want to debug. We usually write the information to a specified file
Of Then, according to the corresponding information to deal with the problem.
For example, the author likes to use Ajax to
There are two ways to change the size of an image.(1): the imagecopyresized () function is valid in all versions of GD, but its algorithm for scaling images is rather coarse.(2): imagecopyresampled (), its pixel interpolation algorithm to get the
The single state design pattern is also called a single case pattern:
1. Single State design mode meaning:
The main function of a single state pattern is to ensure that in object-oriented programming, a class can only have one instance object. As
Interpreter (interpreter) mode, which includes a grammatical representation with a composite hierarchical structure, where the rules are mapped to classes, and the expressions following the grammar can be converted into an abstract syntax tree, with
This paper illustrates the method of automatic detection and removal of UTF-8 file BOM in PHP. Share to everyone for your reference. The implementation methods are as follows:
BOM information is a string of hidden characters at the beginning of a
1: PredefinedIn the home directory, you can also write a file in any other directory, such as Caleng_module.defThe content is the name of the function you want to define and the parameters:int a (int x,int y)String B (String str,int N)2: To the PHP
Last night after the transfer of a DISUCZ forum, found open page back to more than one PHP has encountered a stack overflow this hint error, translated into "PHP encountered stack overflow." I feel strange, the new station no one to visit, how can
Developed with. NET for many years, recently contacted PHP, and found PHP is also very fun. However, it is found that there is no set collection class, only arrays, and the array is very strong. Here I wrap the array into a set collection, and the
PHP's MVC programming ideas have been widely used in the development of various large-scale projects, many mature MVC framework has become well-known and widely used in various projects, more common such as thinkphp, CodeIgniter, Symfony, Yii, Cake
Often have friends with PHP socket application is full of doubt, this article on the example code to make a explanation, hope to beginners PHP friends play a little help role
The specific code is as follows:
1. Server-side code:
$name = $val;
About the current () function:
Each array has an internal pointer to its "current" cell, which initially points to the first cell inserted into the array. Gets with current ().
Similar functions:
End () Moves the internal pointer of the array
This article illustrates the difference between the new static () and the New self () in PHP, and believes that it will help you to learn the PHP program.
The cause of the problem is to build a local station. Found in PHP 5.2 can not build up, the
Gd_info function: Get information on the currently installed GD librarygetimagesize function: Gets the size of the imageImage_type_to_extension function: Gets the file suffix of the image typeImage_type_to_mime_type function: To determine the MIME
Due to the need to determine whether the uploaded file has been modified, you need to record the MD5 value of the uploaded file, here to record the way to get the file MD5 value.
Copy Code code as follows:
if (Isset ($_files['
The PHP addcslashes () function definition and usage addcslashes () function adds a backslash before the specified character. The syntax addcslashes (string,characters) parameter description string is required. Specify the string to
PHP and JavaScript are beginners. There is a need recently:
For example, there is a multiple-line PHP string:
$a =
When passed to JavaScript, it is equivalent to:
var c= ' thy38\n\
csdn\n\
blog ';
Because the
Interface issues
The most important thing about PHP calling interface is using curl to crawl information
Copy Code code as follows:
$ch = Curl_init ();
curl_setopt ($ch, Curlopt_url, $url); URL address
curl_setopt ($ch, Curlopt_post,
Dispatch is a small PHP framework. It does not give you complete MVC settings, but you can define URL rules and methods to better organize your applications. This is perfect for APIs, simple sites, or prototypes.
Copy Code code as follows:
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