PHP Tutorials

This article mainly introduces PHP using the In_array function to check if there is a value in the array, a more detailed analysis of the function of the In_array function, definition and related use of skills and considerations, with a certain

The math function can handle values in the range of integers and float. This article mainly introduces PHP built-in math function efficiency test, as an example to test the relevant PHP built-in math function execution time, analysis of its

See a bunch of ways to call the Windows API to read and write INI files, and try using regular expressions one at a time. There is not much content, defined by several coarse regular expressions, to read the contents of the INI. Now just to try, do

Sometimes in the project we need to use PHP to encrypt specific information, that is, through the encryption algorithm to generate an encrypted string, the encrypted string can be decrypted by the decryption algorithm, so that the program to process

The so-called sensitive character refers to: In the article contains unhealthy or reactionary information, the impact of social information, will be considered sensitive characters. Because sometimes the user input sensitive characters will affect

The usual functions for calculating string lengths in PHP are: strlen and Mb_strlen. When the word embox is an English character, the two are the same. Here the main comparison, the Chinese and English mixed in the time, two calculation results. In

This article mainly introduces the pseudo-random number and the true random number of PHP, this article first explains the true random number and pseudo-random number of the relevant concepts, and gives a better pseudo-random number than the Mt_rand

PHP has a single-inherited, restricted-access, object model that can be overloaded. In addition, PHP supports restrictive access to properties and methods. You can declare members to be private and do not allow external classes to be accessed.

Singleton mode (duty mode): Simply put, an object (before learning design patterns, need to understand the object-oriented thinking) is only responsible for a specific task; Singleton class: 1. The constructor needs to be marked as private (access

This article mainly introduces how to create a desktop shortcut for PHP First case: PHP generates a Web page desktop shortcut Will introduce the use of PHP to generate Web page desktop shortcut code, and add icons and solve the different browser

This article mainly introduces PHP's method of obtaining gender and birth date from ID card. Have a good reference value, follow the small series together to see it If you don't say much, look at the code: Gender and Birthday $birth = strlen

There is a function called Strtotime in PHP. Strtotime implementation: Gets the timestamp of a date, or gets the timestamp of a time. Strtotime to parse the datetime description of any English text into a UNIX timestamp Write the program today,

The English literal of the socket is "hole" or "socket". As the BSD UNIX process communication mechanism, take the latter one meaning. Often also referred to as a "socket," which describes IP addresses and ports, is a handle to a communication chain

This article mainly introduces PHP to determine how many months between the two date method, involving the PHP operation date of the relevant skills, the need for friends can refer to the following This example describes how PHP determines how

This article mainly introduces the difference between Echo and print in PHP, and makes a thorough summary and analysis of the common usage differences between them, and the friends who need can refer to In general, the dynamic output of HTML

Solve multiple calls while writing a file, we will use flock to solve some problems, so that only one user can write files at the same time, while other users waiting queue, let me introduce flock to solve the problem of multi-user read and write

MySQL has a date function now (), this value returns not a timestamp, but similar to 2010-10-1 12:12:12, PHP has the date function of date (), Date ("Y-m-d", Time ()) to return the current times, if you use the simple (), The current time is

This article mainly introduces the method that PHP obtains the random array list, involves the random number's application to the array's traversal, very has the practical value, the need friend can refer to the next In this paper, the example of

For everyone to introduce in detail PHP using crypt () function for encryption, has a certain reference value, interested in small partners can refer to One, the code encryption $str after the variable is: '. $crypttostr; Output encrypted

This article mainly introduces the use of PHP string segmentation function, example analysis of PHP explode and split function using skills, very practical value, the need for friends can refer to the next The example in this paper describes the