PHP

Unlimited classification, exciting but confusing data structures. It is exciting because this structure is too practical and convenient. It is confusing because the front-end data structure of this structure often wastes a lot of precious

When uploading PHP files, we all need to use the file type identification function. Below I will introduce several common examples of file type identification. When uploading PHP files, we all need to use the file type identification function. Below

This article introduces how to enable users to download a PDF file to the client instead of simply browsing the file in a browser. This article introduces how to enable users to download a PDF file to the client instead of simply browsing the file

This file upload class allows you to customize the size of the uploaded file, the type of the uploaded file, and the file storage address. It is also very helpful to use this method. One Article is that if the Chinese file name is uploaded, it will

PHP programmers are dropping us. When we are used to the OOP era, we should consider program modularization in more cases. The simpler the function, the better. All the functions are encapsulated for the program to call! The idea is good, but it is

We often want to convert the numbers entered by users to the RMB capital form when doing the mall. Below I have sorted out several trillion-level digital conversion examples, let's take a look at these examples. We often want to convert the numbers

The regular expressions used to collect mobile phone numbers, landline, mailbox, ID card numbers (15 or 18 digits), and mobile phone number interceptions (four digits in the middle) in php are collected by the user. If something is wrong. Welcome!

Snoopy is a php class used to simulate some simple functions of the browser. It can obtain webpage content and send forms. To run Snoopy correctly, the PHP version of your server is later than 4 and PCRE (PerlCompatibleRegularExpressions) is

It is easy to export csv data because the csv format data is a text type. You only need to separate the data by using the "and" signs, then, use the header to input the csv or excel format. It is easy to export csv data because the csv format data

Php time zone is a very interesting issue. After installing the apache + php environment, we will find that the date we get using the date function is 8 hours different from the Chinese time, how can this time zone problem be solved? I have sorted

In php learning, error_reporting and display_errors are two very important parameters. They are indispensable in learning the debugging process. It is very easy to enable and disable these two error logs as long as they are in php. you can simply

The requirement is as follows: there is a log file of about 1 GB, with about more than 5 million lines. php is used to return the last few lines of content. If we use a common method, the log file will be stuck, later, I saw a webmaster write this

For some important files, we do not want users to directly enter the address for access. This requires some settings. The following summarizes some php statements that prohibit access directly from entering the address in the browser. PHP file

There are many ways to delete an array element. One is to delete the first element or an element at Will or delete an empty element in the array, below I will summarize some examples of deleting array elements. There are many cases of deleting array

To implement a calculator, we can use related mathematical operation functions and related arrays in php to perform operations. This person is just fun to write and is not practical. The calculator personally thinks js is the best. To implement a

Next, let's take a look at an example of xampp enabling remote access to the xamppMysql database in a learning environment. I hope the example will be helpful to you. Next, let's take a look at an example of how xampp enables remote access to the

The following article summarizes three methods of converting arrays into strings and then writing them into the database. One is to directly use the implode function, and the other is to use the serialize and eval functions for conversion. Let's

Many cms have word segmentation functions, most of which are used in tag tags. I have written a word segmentation method myself without a powerful word dictionary, I downloaded a word dictionary and a word segmentation code on the Internet. Many cms

Some websites have a lot of CSS files. if you merge them together and perform Gzip compression, the request and file size will be reduced, which improves the loading speed of websites. For convenience, I do not recommend manual compression and

File_get_contents is rarely used to replace curl, but sometimes you can use file_get_contents instead of curl when the server does not support curl. The following is an example. File_get_contents is rarely used to replace curl, but sometimes you can