Chapter 5 _ PHP Process Control

1. Ordered Structure 2. Branch Structure 2.1 if... else 2.2 if... elseif 2.3 switch 3. Loop Structure 3.1 while 3.2 do... while Similar to C/C ++ 3.3 ' (= 0; 3.4Foreach The foreach statement is used to traverse arrays. There are two syntax

PHP uses dynamic Constant and Define values

In php, Constant and Define are constants. So I will introduce a method that can dynamically use the Constant and Define value methods. I hope this will be helpful to you. How should I use PHP to show or use dynamic Constant/Define values? Ex: The

PHP obtains the IP address and outputs the Code as an array program.

There are many ways to obtain IP addresses in php. Next I will introduce how to use linux commands to obtain IP addresses and convert them into array output. Below I also introduce some common php IP address processing instances. PHP obtains the

Modify PHP configuration files to upload large files (apache/nginx)

In php. in ini, if we do not modify the post_max_size and upload_max_filesize parameters, a maximum of 2 MB files can be uploaded by default. If the number of MB or larger files cannot be uploaded, next I will introduce several methods for modifying

Php pseudo-static writing (apache pseudo-static rules)

In php, we can directly use php to process URLs for pseudo-static operations. However, this pseudo-static mode is not a standard and can be said to look like a commodity, but it is quite comfortable, of course, if you want to implement real

Phpmyadmin changes the SQL statement to base64 for Transmission

Because the dongle function is installed on the server, our direct SQL cannot be used. Next I will introduce you to phpmyadmin to change the SQL statement to base64 for transmission to solve this problem. 1. First modify libraries/header. inc.

Modify the size limit of the Image File Uploaded by php ckeditor

There is no size limit for the ckeditor editor to upload images or files. Here we will introduce two solutions to the size limit of the files uploaded by ckeditor. One method can be used to limit the size of the PHP. INI configuration file to be

Php Session control cookie and Session Processing

In php, cookies and sessions are usually used to register login and record user information. However, cookies and sessions are very different. Let's take a look at them. Session Introduction: HTTP (Hypertext Transfer Protocol) defines the

Php + mysql + ajax imitation Baidu Google search drop-down automatic prompt box Effect

When using Baidu and google, we will find that there will be related prompts as long as we enter one word, which improves the website experience, next, I will share with you an example of an automatic prompt box in the drop-down menu of Baidu Google

PHP simple counter instance Program

In php, we sometimes write a simple website page access statistician. The following section describes how to use PHP to implement counter code. I hope this method will be helpful to you. Let's add a counter to the homepage. It is helpful to

PHP Class and object learning notes

The following is a PHP Class and object learning note written in the course. I hope this tutorial will be helpful to you. Personal notes... for reference. If you have any mistakes, please point out. Thank you. The Code is as follows:

Adding a watermark in php cannot remove the watermark background

ProblemAdding a watermark in php cannot remove the watermark backgroundSolutionThe effect of adding a watermark to a gif image is the same as that of a jpg image without a white background.Attachment: you cannot download or view attachments in your

Install phpMyAdmin in a personal space

Install php tutorial myadmin in personal space Of course, you have the mysql tutorial database tutorial. Download the latest phpmyadmin mysql manager. Decompress the package and obtain a phpmyadmin directory (you can rename it). Find the config. inc.

PHP System Time Zone 8 time difference Setting Method

Php Tutorial System Time Zone 8 time difference Setting MethodYou can modify the time zone of the php System in either of the following ways:1. Modify php. in the INI file, locate "; date." in [date. timezone = ", change this item to date. timezone =

Differences between mb_convert_encoding and iconv in php

Mb_convert_encoding is used to convert the encoding. I have never understood the concept of program encoding, but now it seems a bit open. However, the English language generally does not have Encoding Problems. Only Chinese data can have this

Deprecated: Function set_magic_quotes_runtime () is deprecate

After upgrading php today, a page showing Deprecated: Function set_magic_quotes_runtime () is deprecated in F :\\ wwwroot \ mongodb \ manage \ app is displayed. php on line 13 Error. Later, Baidu learned the cause of the high version of php and set

PHPExcel Allowed memory size of memory leakage solution

This article introduces how to solve the memory leakage of PHPExcel Allowed memory size of. If you have such problems, refer. After I use PHPExcel to import a document containing about 31 columns and 500 rows, PHP reports the following error: Fatal

Deprecated: Function session_register () is deprecated Solution

After changing the Php environment today, we found that the error message "Deprecated: Function session_register () is deprecated" is displayed. I will introduce it to you. Let's first look at the code The Code is as follows: Copy code

Firefox prompt: the page you are trying to view cannot be displayed due to a Content Encoding Error

Today, I asked the customer to organize a website and found the firefox prompt: the page you are trying to view cannot be displayed due to a Content Encoding Error because it uses an invalid or unsupported compression format, I think the customer is

Strict Standards: Only variables shocould be passed by referen

This article introduces the Strict Standards: Only variables shocould be passed by reference in solution. For more information, see. Php uses the built-in reset function to obtain the value of the first element of array. For example: The

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