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 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

PHP File Upload extension and file type table (covering almost all files)

There are many PHP File Upload classes on the Internet, and file upload processing is a special feature of PHP (at least this is shown in the manual as a feature of PHP, I personally think PHP has better array functions.) PHP learners all know how

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! =

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.

Introduction to hessian in PHP

1. What is hessian?I still don't know how to read this word. The phonetic alphabet is [hes. Hessian is a lightweight remote data exchange tool that provides the RMI (remote method call) function in a simple way. Hessian is simpler and faster than

Parsing the PHP development method of the PayPal payment Interface

Apply for PayPal registration URL: https://www.paypal.com/ The paypal interface is somewhat different from other interfaces and is a little more complicated. In fact, the bank interface is also a site plug-in. The so-called paypal ipn (Instant

Small comparison of PHP function execution efficiency

The number in the original array is split into "single" bits. The following is a self-written function: Copy codeThe Code is as follows: function splitStrToArray_mine ($ array) { $ New_array = array (); Foreach ($ array as $ value) { $ Value =

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

Php code for returning list data of infinite classification with Arrays

Copy codeThe Code is as follows :/*------------------*/ //-Obtain the list data of an unlimited category /*------------------*/ Function get_sort ($ parent_id = 0, $ n =-1) { Global $ db; Static $ sort_list = array (); $ SQL = "SELECT * FROM".

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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