function of php

What is the function of PHP string function Stripos ()? The String function Stripos () is the first occurrence of a string in another string, and the function is case-insensitive. It is convenient to use, and its associated function has Strripos

This paper mainly introduces the pseudo-random number and the real random number of PHP, this paper first explains the relevant concepts of true random number and pseudo-random number, and gives a example code that produces better pseudo-random

This article mainly introduces the implementation of the ignore_user_abort function of php scheduled tasks, and analyzes the implementation of the ignore_user_abort function of php scheduled tasks in the form of examples, the usage of the

PHP pseudo random number and true random number detailed, pseudo random number detailed The first thing to declare is that the computer does not produce an absolute random number, and the computer can only produce "pseudo-random numbers". In fact,

The first thing to declare is that the computer does not produce an absolutely random random number, and the computer can only produce "pseudorandom numbers". In fact, the absolute random random number is only an ideal random number, even if the

Objective To do a code release system, you need to use the exec function of PHP to execute Linux commands and git,svn commands, how to determine whether the exec function of PHP is executed successfully? Solution Write a php file to do the

Summary: This paper briefly introduces the output control function of PHP and gives some concrete ideas and examples for its application in simplified traditional transformation. Introduction of a PHP output control function PHP, as one of the most

Description of the problem; get the thumbnail and video time length of the FLV video Google for half a day found that you can use FFmpeg to get some information about the video, first introduce FFMEPG Here's a simple: FFmpeg is a

Summary: There are many friends of the site to provide complex, Jane two versions of the confusion, how to achieve it? This is one of the most important points of knowledge that is missing from many PHP books nowadays. The author collects and

Summary: This paper briefly introduces the output control function of PHP and gives some concrete ideas and examples for its application in simplified traditional transformation. Introduction of a PHP output control functionPHP, as one of the most

The application of PHP output control function in simplified traditional transformation: This paper briefly introduces the output control function of PHP and gives some concrete ideas and examples for its application in the transformation of

Control | conversion "Summary" PHP, as a scripting language that exposes the source code, is a very good extensibility. This article is just a function of one of the application of a way to explore, and achieve a more perfect the same page automatic

Authcode () is not a built-in function of PHP. It is a function developed by KANG Sheng that uses exclusive or operations for encryption and decryption. It can be said that this is a major contribution of KANG Sheng to the PHP community in China.

Which of the following is better for comparing the efficiency of php date () and Mysql FROM_UNIXTIME ?, Mysqlfrom_unixtime In the past few days, we have made statistics on the number of orders calculated by year, month, or day. For example, we have

In PHP website development, full-site or partial static processing is required for website promotion and SEO. PHP provides multiple methods to generate static HTML pages, for example, to use PHP templates and cache to achieve static pages, we will

PHPisset () and empty () usage differences. The isset () function of PHP is generally used to check whether the variable is set in the format boolisset (mixedvar [, mixedvar [,...]). function: checks whether a return value is set for a variable. if

This article mainly introduces PHP's pseudo-random number and real random number details. This article first explains the concepts related to the real random number and pseudo-random number, and gives the comparison using mt_rand () an example code

The iconv () function of php is supported in linux. 3. install the libiconv copy code as follows: #1. download the libiconv function library http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.9.2.tar.gz; 2. decompress tar-zxvf libiconv-1.9.2.tar.gz; 3.

The array_unique () function of PHP allows you to pass an array, remove duplicate values, and return an array with unique values, this article describes how to implement PHP array deduplication quickly. For more information, see this

This article mainly introduces the function of PHP encryption and decryption, which implements the function of encrypting some variable values. if you are interested, please refer to a function of PHP encryption and decryption, this function