PHP string usage Summary

1. Evaluate the length, the most basic $ Text = "Sunny Day "; $ COUNT = strlen ($ text); // $ COUNT = 9 2 string TruncationNumber of characters before Truncation$ Article = "Breaking news: In Ultimate irony, man bites dog."; $ summary = substr_

PHP enables gzip page compression instance code

To implement gzip compression pages, the browser and the server need to support them. In fact, the server is compressed. After being uploaded to the browser, the browser decompress and parse the files. We don't need to worry about browsers, because

PHP GD2 uploads image/Text watermark/image watermark/proportional thumbnails/implementation code

CopyCode The Code is as follows: // Upload file type list $ Uptypes = array ( 'Image/jpg ', 'Image/JPEG ', 'Image/PNG ', 'Image/pjpeg ', 'Image/gif ', 'Image/BMP ', 'Image/X-PNG' ); $ Max_file_size = 200000; // size limit of uploaded files, in bytes

Operate Excel instance code in PHP

CopyCode The Code is as follows: // Specify the page encoding to prevent Chinese garbled characters Header ('content-type: text/html; charset = gb2312 '); // Start Excel$ Ms_excel = new COM ("Excel. application") or die ("cannot open an Excel

Create a configuration file and use PHP to write your own blog system 2

First look File interface before creation After the configuration file is created, the system prompts that the installation cannot be repeated. NextCodeRight, the code on the HTML interface will not be available. Just go to the PHP

Php ftp file upload function (Basic Edition)

CopyCodeThe Code is as follows: // Define variables $ Local_file = 'local.zip '; $ Server_file = 'server.zip '; // Connect to the FTP server $ Conn_id = ftp_connect ($ ftp_server ); // Verify the Login Server $ Login_result = ftp_login ($ conn_

Example of application source code for conversion codes of Chinese Characters in PHP

CopyCode The Code is as follows: Global $ php_self; // Echo $ php_self; $ T1 = $ _ post ['textfield1']; $ T2 = $ _ post ['textfield2']; $ T3 = $ _ post ['textfield3']; $ T4 = $ _ post ['textfield4 ']; // Chinese Character -- location code If ($ T1! =

PHP thunder, express, Tornado download dedicated link conversion code

Copy Code Save it as CS. php. To save it as another name, modify the line . Copy code The Code is as follows: Function zhuanhuan (){ $ Urlodd = explode ('/', $ _ Get ["url"], 2); // divide the link into two sections. // The first section is the

PHP Excel File Operations Based on phpexcel

Therefore, the first step is to extract the data from the Excel file. Here I used an open source PHP processing Excel class: phpexcel. Detailed information for this project http://phpexcel.codeplex.com /. I currently use phpexcel1.7.3. After

Use PHP to add the log function code for shopex

In particular, it is impossible to know which spider has accessed this site, the frequency of access, the page, and General website statistics. Although I know little about PhP, but with the development experience of. net, Baidu is still very

PHP Post simulation | get operation implementation code

Recently, I developed social game and found that it is still quite common to use it. Here I will make a summary to help you remember and hope to help you. First, let's look at the requirements. If we develop social game on Facebook, we need to

Summary of some policies for optimizing PHP Program Efficiency

1. When file_get_contents can be used to replace file, fopen, feof, fgets, and other methods, try to use file_get_contents, because its efficiency is much higher! Note the PHP version of file_get_contents when opening a URL file; 2. Perform as few

PHP htmlreplace input filter Security Function

CopyCode The Code is as follows: // $ rptype = 0 indicates that only the HTML Tag is replaced. // $ Rptype = 1 indicates replacing the HTML Tag and removing consecutive white spaces // $ Rptype = 2 indicates replacing the HTML Tag and removing all

Two Methods for PHP automatic loading

PHP supports two automatic loading methods. The first scheme uses _ autoload, which is relatively simple and weak. But there is a problem that cannot be solved, that is, to determine whether the file exists before include. CopyCode The Code is as

PHP array cross tabulation implementation code

If the SQL statement is used, the workload is too large, so I try to write a cross-Table class by myself. Let's take a look. Code Copy code The Code is as follows :/** * Basic cross tabulation * @ Author Hugh * */ Class Program { Private $

PHP function learning Summary

File_exists () check whether the file or directory exists Description Bool file_exists (string filename) If a file or directory specified by filename exists, true is returned; otherwise, false is returned. The dirname () function returns the

Ioncube is a PHP encryption/Decryption tool similar to Zend.

PHP does not have the ioncube loader module. It must be downloaded from the ioncube website. Ioncube loader is free of charge, but encoder is expensive (starting at $199 ). The following describes how to install ioncube loader in Linux.

Use Memcached to implement session mechanism in php to replace native session support in PHP

Method File Session implementation file: memcachedsession. php Implementation principle (also the implementation principle of PHP internal session ): 1. Check whether the client has a sessionid, A. Add a sessionid to the client, usually a 32-bit

Anti-leech cracking code using forged http headers in php

Counterfeit referer instance code, mainly used for breaking through anti-leeching, slice, software, etc. The complete program is provided here. You can modify the specific application on your own.The example I provided here is very simple. In fact,

Pagination of php article content and generate corresponding htm Static Page code

Copy codeThe Code is as follows: $ Url = 'test. php? 1 = 1 '; $ Contents = "fjka; fjsa; # page # generate files in batches and add paging code "; $ Ptext = '# page #'; ContentsPages ($ url, $ contents, $ ptext) /** * Function name: ContentsPages *

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