PHP

There are generally two kinds of urlencode, one is the traditional based on GB2312 encode (Baidu, Yisou, etc.), the other is based on UTF-8 encode (Google, Yahoo and other uses). This tool implements the encode and decode of two different

Do you use Is_file or file_exists to determine whether a file exists? In writing procedures found in the determination of the existence of documents, there are two ways to write, some people used is_file, some people use file_exists, which better

First, basic knowledge This chapter briefly describes the internal mechanisms of some Zend engines, which are closely related to extensions and can help us write more efficient PHP code. Storage of 1.1 PHP variables 1.1.1 Zval Structure Zend uses

The simple log write function of PHP implementation is described in this article. Share to everyone for your reference. The implementation methods are as follows: function log ($logthis) { file_put_contents (' Logfile.log ', date ("Y-m-d h:i:s")

This can be a quick and easy goal, but when it comes to storing information, it tends to have some sensitive things that may become targets for attack, such as bank accounts, credit card transactions, or records. This requires that security measures

one_num = 8; Default 32m*1 $this->space_group_num = $space _group_num; $this->hash_space_assoc = Array (); Allocate space for ($i =0 $i space_group_num; $i + +) {$this->hash_space_assoc[$i] = str_repeat ($binary, $max _le Ngth); $this->pow_

CodeIgniter (CI, official website and China Station) is a popular PHP framework, compact but powerful, simple lightweight at the same time have a good scalability, at home is also relatively popular. CI, on the other hand, has not been with the

ISSET ();--suitable for detecting the existence of this parameter. Definition and scope: used to test whether a variable has a value (including 0,false, or an empty string, but not null), that is, "http://localhost/?fo=" can also be detected and

1, download Libiconv function library http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.9.2.tar.gz; 2, decompression TAR-ZXVF libiconv-1.9.2.tar.gz; 3. Installation Libiconv Copy Code code as follows: #configure--prefix=/usr/local/iconv

The bright spot of this article is that the regular-style more complex bird, ╮@@facesymbol@@╭, and then the Copy function of a gray often powerful one usage. > say just now listen to Nsyta said the theme of small evil white, cups. Recently too busy,

Krsort () Definition and usageThe Krsort () function sorts the array in reverse order, preserving the original key for the numeric value. The optional second parameter contains the additional sort flags. If successful, returns TRUE, otherwise

Asort () Definition and usageThe Asort () function sorts the array and maintains an indexed relationship. It is primarily used to sort the associative arrays that are important to the order of the cells. The optional second parameter contains an

Array_values () Definition and usage The Array_keys () function returns a new array containing all the key names in the array. If the second argument is provided, only the key name with the value is returned. If the strict parameter is specified

Array_combine () Definition and usageThe Array_combine () function creates a new array by merging two arrays, one of which is the key name and the other is the key value. If one of the arrays is empty, or if the number of elements in the two

Effect Chart: Secret Security card Storage Copy Code code as follows: $this->load->model (' Admin/m_mibao '); $data = Array (); Generating Random Horizontal $rand _str = $this->_rand_str (10); $arr = Array (); for ($k =0;

In fact, there is no technical content, of course, directly affixed to the code, no nonsense, But in fact, the development of a very useful, such as forum posts, scarf and so have relevant applications Copy Code code as follows:

In this paper, we analyze the function usage of PHP to define a parameter with default value. Share to everyone for your reference. The specific analysis is as follows: The function parameter of PHP can specify the default value, after specifying

This article illustrates the method of PHP using reflection to implement plug-in mechanism. Share to everyone for your reference. The implementation methods are as follows: Copy Code code as follows: /** * @name PHP Reflection

This example describes the simple use of PHP to delete a directory via rmdir. Share to everyone for your reference. The specific analysis is as follows: PHP can delete the directory on the server through the RmDir () function, the following code

This example describes the way PHP converts strings to 16. Share to everyone for your reference. The specific analysis is as follows: In PHP, you can convert a string into a 16-form output using the Bin2Hex function, and the Bin2Hex () function