PHP Tutorials

The Fileatime () function returns the last access time for the specified file. This function returns the last time the file was accessed. Returns False if an error occurs. Time is returned as a Unix timestamp. The Filectime () function returns

file_exists-check whether a file or directory exists; File_exists ($filename) The parameter filename is the path to the file or directory. Returns TRUE if the file or directory specified by filename is present, otherwise FALSE. However, this

This article mainly describes the PHP use of cookies to save user login user Name implementation method, the instance form a complete analysis of the cookie saved user login skills, the need for friends can refer to the following The example in

"Fuzzy Search" is a concept contrary to "precise searching", as the name implies, the search system automatically follows the synonym of the user input keyword for fuzzy retrieval, so that more results can be obtained. Synonyms are configured by the

The error_reporting () function kneels and you give the PHP error which should be reported. This function can set the error_reporting directive at run time. PHP has many error levels that you can use to set the level at which the script runs.

This article mainly introduces the PHP external execution command function usage, combined with the instance form analysis exec and the system executes the external command the related use skill, needs the friend can refer to the next This example

This article mainly introduces the PHP socket client and server-side application example, the need for friends can refer to the following Often friends will be full of doubts about the application of the PHP socket, this article is an example of

This article is a detailed analysis of the PKI encryption Technology (OpenSSL) in PHP, which requires a friend's reference The code is as follows: generate private key and public key genrsa-out PRIVATE-RSA.PEM rsa-in

PHP Chinese garbled is generally a character set problem, the code has the following several problems. Php+mysql do web site development is usually encountered in the browser output Chinese characters garbled, this problem is mainly due to HTML

Var_dump This function displays structure information about one or more expressions, including the type and value of the expression. The array recursively expands the value and displays its structure by indentation. In this article we are going to

This article mainly introduces the PHP custom function to transform the HTML tag method, combined with the instance form analysis PHP code conversion and regular replacement operation skills for the string, the need for friends can refer to the

Introduction of three kinds of multi-file upload method, the first two are directly traversed three-dimensional hyper-global array $_files, the last one is to define a single file upload function, and then loop call the function, complete the upload

fastcgi_finish_request()is a php-fpm function that provides the ability to prematurely end the connection response data and resume the task on the back end, in order to perform long-time tasks or to improve response time, we can use this function to

In "Go" straight out of ASM or any other assembly language. Here's a link: I want to know: what can do this and make my code more how I can do it in this larger project without cheering up. Since the goto statement allows you to jump back and forth,

PHP goto operator Can be used to jump to another location in the program. The position can be marked with the target name plus a colon, and the jump instruction is the position marker that the target is connected to after Goto Some restrictions

Why uploading large files always fails, uploading small files is no problem. The reasons for the failure of uploading large PHP files and how to solve them are as follows: 1th case: The temporary directory where the file is uploaded must be open

In PHP5, the type of the variable passed by the method is nondeterministic, and the instanceof operator can be used to determine whether the current instance can have such a pattern. The current instance uses instanceof with the current class, the

PHP generated a unique ID, the web looked down, there are many ways 1, MD5 (Time (). Mt_rand (1,1000000)); This method has a certain probability that there will be repetition 2. PHP built-in function uniqid () The Uniqid () function generates a

It's not a fire. Laravel is also used in China. There are several reasons why most companies do not use 1. PHP version compatible 1. Many of the deployment scenarios are Lnmp,lamp, and the version requirements are relatively low. Laravel Latest

PHP merging arrays generally have two practices, one is to add directly using the plus sign, the other is to use the Array_merge function to add, Array_merge () to merge two or more arrays of cells, an array of values appended to the previous array.