php documentation

PHP namespace and automatic loading class, PHP namespace loading class. PHP namespaces and automatic loading classes. PHP namespaces are only available after php5.3. This concept has been available in C # for a long time. namesp php namespace and

1 What is securitySecurity is the protection of Web applications and Web pages from hackers. Some hackers are purely for fun to invade other people's computers, but more hackers are struggling to steal other people's computer files, and even the

PHP detection upload Excel file type Objective Introduce a kind of high-end detection upload file type method, you can prevent suffix modification and other low-end detection errors, the patient can refer to the classmate, I will encapsulate into

PHP 5.2 Memory Manager ? What's new in PHP V5.2, part 1th: Using the new memory manager Track and monitor PHP memory like tracking and monitoring uber-nerd Tracy Peterson (tracy@tracypeterson.com), freelance writer, consultant Since 1997, Tracy

Use PHP's own filter function for data validation Use PHP's own filter function for data validation PHP filters contain two types of Validation:Used to verify that a validation entry is valid sanitization:Used to format the validated

A description of the Get_headers function in the PHP documentation:(PHP 5, PHP 7) get_headers -Get server to respond to all headers sent by an HTTP request$url = "https://www.baidu.com"; $response get_headers ($url); Echo ""; Print_r ($response);

SAPI module specific location. The exact location of the SAPI module SAPI is an abbreviation for the server Application programming Interface (Application programming interface for servers). PHP provides a set of interfaces through SAPI for

Heredoc technology, usually not detailed in regular PHP documentation and technical books, just mentions that this is a Perl-style string output technique. It also appears in unix/linux shell programming. But now some of the forum procedures, and

First, frequently asked questionsWhen using PHP for computing, you often encounter the problem of precision, the following two common examples:1. Comparison of operationsThe result of the following expression output is not 相等 :2. Type conversionThe

1. Optimize your query for query cachingMost MySQL servers have query caching turned on. This is one of the most effective ways to improve sex, and this is handled by the MySQL database engine. When many of the same queries are executed multiple

MySQL optimization under 8G memory Try the following settings:Key_buffer = 3840MMax_allowed_packet = 16MTable_cache = 1024Sort_buffer_size = 32MRead_buffer_size = 32MRead_rnd_buffer_size = 32MMyisam_sort_buffer_size = 256MThread_cache_size =

This article mainly describes the upgrade of PHP from 5.3.28 to 5.3 29 o'clock Nginx 502 errors, need friends can refer to the next Today, the PHP upgrade from 5.3.28 to 5.3.29, found that the site is not open, prompted the "502 Bad Gateway",

Technical documentation can make it easier for people to use someone else's code base, but as a developer, writing documents is a daunting task. Phpdoc is a standard for PHP documentation comments that can be implemented as a code generation API

This article illustrates the configuration and application method of Laravel memcached cache driver. Share to everyone for your reference, specific as follows: The memcached cache configuration can be configured to use in any PHP environment to

Today, database operations are increasingly becoming a performance bottleneck for the entire application, especially for Web applications. As for the performance of the database, this is not just something that DBAs need to worry about, and that's

When we design the database table structure, we need to pay attention to the performance of the data operation when we operate the database (especially the SQL statement when we check the table). Here, we don't talk too much about the optimization

Today, database operations are increasingly becoming a performance bottleneck for the entire application, especially for Web applications. As for the performance of the database, this is not just something that DBAs need to worry about, and that's

This paper describes the application of PHP wrapper on SAE. Share to everyone for your reference, specific as follows: One, PHP wrapper is what since PHP 4.3, PHP has started to allow users to customize URL-style protocols via

PHP as a server-side scripting language, like writing simple, or complex dynamic Web pages such tasks, it is fully competent. But things are not always the case, sometimes in order to implement a function, you have to rely on the operating system of

In the PHP documentation, it just mentions that echo can output multiple lines of string (and the variables are automatically replaced) using the following command: PHP code Copy Code code as follows: Echo This uses the ' Here