PHP

Enabling slow PHP logs (request_slowlog_timeout10s) is a required option, and it also allows us to discover many pitfalls and solve many performance problems in our project, enabling slow PHP logs (request_slowlog_timeout = 10 s) is a required

This article mainly introduces the MongoDB database operation class sharing implemented by PHP and the operation class of the template mysql version. if you need it, refer to MongoDB. The code is as follows:Class HMongodb { Private $ mongo; //

This article mainly introduces php zip compression file decompression implementation code. if you need it, you can refer to the following carefully studied code, the efficiency of the decompression program written in php is much higher than imagined.

This article mainly introduces php and ajax to implement the like, top, and step-on function instances, including PHP code, JS code, and database code. it is very detailed and provides a very good example, for more information, see Ajax. Php

Use the preg_replace regular expression matching function in php to filter out js code in the webpage. The fourth parameter in preg_replace () indicates the number of replicas. the default value is-1, indicating that all replicas are replaced; if

Most of the time, the data in the database needs to be exported to excel. The following is the easiest way to export data, even if the function is simple, however, for a project that does not have complex requirements, "quick effect" first defines

This article describes how to use FFMPEG in PHP to obtain video thumbnails and video durations. For more information, see FFmpeg. The code is as follows: // Obtain the thumbnail of the video file Function getVideoCover ($ file, $ time, $ name

This article describes how to solve the length problem that occurs when the PHP preg_match function matches strings in regular expressions. if you want to use the preg_match regular expression to extract the target content, you can refer to the

ThomasBoutell and many developers have created a graph software library famous for the GD graphics library for Dynamic Graph Computing. GD provides support for many programming languages, such as C, Perl, Python, PHP, and OCaml. in addition to

Introduction: I just want to implement simple ajax to upload data, but when the data volume is large, the problem comes one by one. In fact, the data is not very big, that is, less than data records in csv format. The size is 5 MB. at first, we

Problem Description: if the data entered by the user is inserted into an SQL query statement without processing, the application may be vulnerable to SQL injection attacks, as shown in the following example: $ unsafe_variable problem description: if

CodeIgniter is a compact but powerful PHP Framework. as a simple and "elegant" toolkit, CodeIgniter can build functional Web applications for PHP programmers. Today, let's take a look at what the CI framework uses for several folders in the CI

In today's project, we hope to make the ugly address beautiful and simple. the CI framework is pseudo-static. Original address: http: // 127.0.0.1/onsite/index. php/welcome/index/abc123 Modified address: http: // 127.0.0.1/onsite/abc123.html

Obtain the four data records from two different tables, and then integrate (array_merge) into an array, then, sort the first four records in this article in descending ORDER based on the data creation time. the functions to be implemented are

Php does not have the linked list data structure. you can use arrays to implement the data structure that has been viewed for a long time, but it has never been used. I saw the PHP Data structure on the Internet and learned it, share with you. The

This article mainly introduces a group of PHP encryption and decryption functions. For more information, see The code is as follows: /** * Function: encrypt strings. * Parameter 1: content to be encrypted * Parameter 2: Key */ Function

I wanted to use a plug-in to upload images. later I wrote a simple js file to implement asynchronous image upload. not to mention that the code is very simple. upload. php The code is as follows: If (isset ($ _ FILES ["myfile"]){$ Ret = array ();$

Php, as a weak type language, cannot directly implement overload like a strong type such as java or c ++. However, some methods can be used to indirectly implement overloading. 1. you can use the func_get_args () and func_num_args () functions to

This article mainly introduces the code process of the attack task page interpreted by the PHP web game Xnova (ogame) source code. For more information, see section 19 "MissionCaseAttack. php) According to the number of the fleet task, the first

In the previous article, we explained the pseudo-static implementation under the APACHE server, but there are more IIS servers in China, especially personal webmasters, let's take a look at the implementation process of php pseudo-static in IIS.