PHP

There are at least two functions in PHP that can help us quickly implement zero-padding:The first is the PHP str_pad function:Copy codeThe Code is as follows: # str_pad-Use another string to fill the string with the specified lengthAs the name

APACHE configures multiple domain names with the same IP address, so you should be familiar with web development. However, let's make a summary to avoid forgetting this in the future!The following describes how to perform the operation:1. install

PHP has many function-like functions, but there are slight differences. Just like all the is_null, empty, and isset functions analyzed in this article, it does not take much effort, it's really hard to really understand! Let's take a look at the

During Website user registration, it is often necessary to verify the number of digits and letters that some fields contain, because they are not familiar with regular expressions, I 'd like to record this kind of things for use when necessary. Php

The program is as follows: $ file_name = "info_check.exe"; $ file_dir = "/public/www/download/"; if (! File_exists ($ file_dir. $ file_name) {// check whether the file exists echo "the file cannot be found"; exit;} else {$ f program is as follows: $

Download the latest version of phpMyAdminMYSQL controller. click this site to download phpMyAdmin and decompress it to get a phpMyAdmin Directory (you can change the name) and find the config in the directory. inc. open the php file and find $ cfg ['

Use the MD5 conversion algorithm to prevent brute-force password cracking & nbsp; MD5 is the most common password encryption algorithm in Web applications. Because MD5 is irreversible MD5 is the most common cryptographic algorithm in Web

PHP is an efficient network programming language. due to its advantages in mobile programming and fast running, Agility has become the preferred language for Web programmers. A recent authoritative survey showed that 31.6% of websites now use PHP as

This article describes how to accelerate MySQL index analysis and optimization for dynamic websites. 1. what is an index? Indexes are used to quickly search for records with specific values. all MySQL indexes are retained as B-trees. If there is no

Submission timeout .. I really think there is nothing to optimize... it can be changed back to the bottom of the BFS .. but it's troublesome. remember a bunch of things .. look at discuss to know the main reason for the vector .. into a handwritten

Mobile_Detect is a lightweight, open-source mobile phone detection PHPClass. it uses strings in the User-Agent and uses HTTPHeader to detect the mobile device environment. The most powerful part of the PHP class library detected by this device is

1. instantiate an object when the class is defined, we use the new keyword to generate an object. $ Object name = new class name (); example: [php] & lt; spanstyle = & quot; color: 333333; & quot; & gt; & lt ;? PhpclassPerson {The following is the

In previous articles, functions are relatively simple in receiving parameters and return types, but they are often more complex in practice. This article mainly describes how to receive parameters from the user space in php extension development,

I. PHP has a rich set of operators, most of which are directly from the C language. Operators can be divided into arithmetic operators, string operators, value assignment operators, bitwise operators, conditional operators, and logical operators.

Summary of vulnerabilities in the PHP script website from the current network security perspective, the most common WEB page vulnerabilities are ASP. in this regard, John is an expert and I have no right to speak. however, in terms of PHP, from the

Many people may have thought about using PHP to write some programs such as timed sending, but they have no way to implement PHP on a regular basis. This article was invented once when I went to PHPBuilder, so I want to translate it for you (and

This article illustrates several methods for creating configurable PHP Exploitation programs. This article also discusses the configuration points of fantasy in the application, and seeks a balance between the configuration of Overfire and overfire

1) function example php: functioninc ($ val) {return $ val + 1;} is also a function, but no return value. Jscript, javascript: functioninc (val) {returnval + 1;} process definition is the same as above. VBScript: functioninc 1) function example Php:

When reading xml files with a large amount of data, although it supports XPath, it is easier to query, but you need to load them first, which wastes the memory and is relatively slow to use. If XMLReader is used, it does not need to be cached. When

Original article: JanEgilRefsnes translation: Jiajie VI. XSL filtering and query if we look forward to seeing only the XML data that meets certain conditions, how should we do it? In the preceding example code, we only need to participate in the