PHP Tutorials

1. From which we can see the role of the Imagecreatetruecolor function is obviously to create a black background image, its first parameter is the width of the created picture, the second parameter is the height of the created picture, we put the

Code: $file = fopen (' text.csv ', ' R ');while ($data = Fgetcsv ($file)) {//reads a row of CSV each timePrint_r ($data); This is an array, to get every data, access the array subscript can$goods _list[] = $data;}Print_r ($goods _list);echo

When parsing xml with PHP prompt invalid byte 1 of 1-byte UTF-8 sequence error, this problem I Baidu verified that is coding problem, the result I put the code to deal with really KO, below I to share the solution. Error hints Invalid byte 1 of

PHP itself does not provide a function to return milliseconds, but it provides a microtime () function that returns an array containing two elements, a number of seconds, and a fractional number of milliseconds, which makes it easy to define a

This article mainly introduces the use of OpenSSL to implement the RSA asymmetric encryption algorithm example, please refer to the use of it The code is as follows: _keypath = $path; }/** * Create the key pair,save the key to $this->_keypath

1. Using the Mail () function There is nothing to talk about, is to use the system comes with the SMTP system to send, usually using sendmail to hair. This varies by system. Use the reference manual. 2. Use the form of a pipe The test was

When we install the Forum or blog on the virtual host, we will install it in a folder under the root directory (Www/web directory) for ease of management, for example, I install a discuz forum, I will create a new BBS directory under the root

Magento is a set of professional open source PHP e-commerce system. Magento is designed to be flexible, with modular architecture and rich functionality. Easily integrates seamlessly with third-party application systems. This release of the

In Java, flow is a very important concept. The concept of stream is derived from the concept of piping (pipe) in Unix. In Unix, a pipeline is an uninterrupted stream of bytes used to communicate between programs or processes, or to read and write

In any language, a function is the most basic constituent unit. What are the features of PHP functions? How is a function call implemented? What is the performance of PHP functions and what are the suggestions for using them? This paper will analyze

Recursively returns an array of string key names that are all lowercase or uppercase Function Recurse_array_change_key_case (& $input, $case = case_lower) { if (!is_array ($input)) Return foreach ($input as $key = $val) { 1 if ($case = = Case_upper)

Copy CodeThe code is as follows: Class Phptelnet { var $show _connect_error=1; var $use _usleep=0; Change to 1 for faster execution Don ' t change the 1 on the Windows servers unless you have PHP 5 var $sleeptime = 125000; var $loginsleeptime = 100

Copy CodeThe code is as follows: /** * Database backup Restore class * @author Xialeistudio * Class Databasetool */ Class Databasetool { Private $handler; Private $config = Array ( ' Host ' = ' localhost ', ' Port ' = 3306, ' User ' = ' root ', '

Here I draw a diagram showing the handshake part of the WebSocket connection between the client and the server, which can be done very easily in node, because the net module provided by node has already encapsulated the socket socket, and developers

Problem Description: Using PHP to modify data in the MySQL database, to implement additions and deletions (the database can be properly connected) tested, the code can only be used for the normal number of additions and deletions, non-numeric

The so-called task plan is the computer automatically call the user pre-set application, so as to simplify the purpose of user operations. With the Task Scheduler for Windows 2000 (rather than the Cron program under *nix, which is no longer detailed

Auto-validation and auto-fill are often used when using thinkphp, but occasionally when automatic validation and autofill do not work, this article analyzes the possible causes of thinkphp auto-validation and auto-fill invalidation, and proposes

The project needs to make a weekly submission feature that requires knowing the start and end dates of the specified weeks to handle other business. Here is a piece of code to get the start date and end date of the week in a year through PHP, and

In PHP's system functions, there is a CHECKDNSRR function that checks whether it has a DNS record based on a given host name (domain name) or IP address to verify that it exists. However, this function can only be used under Linux systems and does

The empty label of the thinkphp template is used to determine if the template variable is a null value. The thinkphp template empty label is used to determine if the template variable is null, and its function is equivalent to the empty () function