Unlimited categories_PHP tutorial
Unlimited categories
//Infinite classification, the main idea is this, use fid to record the upper-level ID of the class, and establish a superior-subordinate relationship through fid and id.
$conn = mysql_connect("localhost","root","root") or die("Database connection lost");
mysql_select_db("new",$conn);
?>
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Pinduoduo software provides a lot of good products, you can buy them anytime and anywhere, and the quality of each product is strictly controlled, every product is genuine, and there are many preferential shopping discounts, allowing everyone to shop online Simply can not stop. Enter your mobile phone number to log in online, add multiple delivery addresses and contact information online, and check the latest logistics trends at any time. Product sections of different categories are open, search and swipe up and down to purchase and place orders, and experience convenience without leaving home. With the online shopping service, you can also view all purchase records, including the goods you have purchased, and receive dozens of shopping red envelopes and coupons for free. Now the editor has provided Pinduoduo users with a detailed online way to view purchased product records. method. 1. Open your phone and click on the Pinduoduo icon.

How to set up keyboard startup on Gigabyte's motherboard. First, if it needs to support keyboard startup, it must be a PS2 keyboard! ! The setting steps are as follows: Step 1: Press Del or F2 to enter the BIOS after booting, and go to the Advanced (Advanced) mode of the BIOS. Ordinary motherboards enter the EZ (Easy) mode of the motherboard by default. You need to press F7 to switch to the Advanced mode. ROG series motherboards enter the BIOS by default. Advanced mode (we use Simplified Chinese to demonstrate) Step 2: Select to - [Advanced] - [Advanced Power Management (APM)] Step 3: Find the option [Wake up by PS2 keyboard] Step 4: This option The default is Disabled. After pulling down, you can see three different setting options, namely press [space bar] to turn on the computer, press group

1. Processor When choosing a computer configuration, the processor is one of the most important components. For playing games like CS, the performance of the processor directly affects the smoothness and response speed of the game. It is recommended to choose Intel Core i5 or i7 series processors because they have powerful multi-core processing capabilities and high frequencies, and can easily cope with the high requirements of CS. 2. Graphics card Graphics card is one of the important factors in game performance. For shooting games such as CS, the performance of the graphics card directly affects the clarity and smoothness of the game screen. It is recommended to choose NVIDIA GeForce GTX series or AMD Radeon RX series graphics cards. They have excellent graphics processing capabilities and high frame rate output, and can provide a better gaming experience. 3. Memory power

Classification and Usage Analysis of JSP Comments JSP comments are divided into two types: single-line comments: ending with, only a single line of code can be commented. Multi-line comments: starting with /* and ending with */, you can comment multiple lines of code. Single-line comment example Multi-line comment example/**This is a multi-line comment*Can comment on multiple lines of code*/Usage of JSP comments JSP comments can be used to comment JSP code to make it easier to read

How to View Command History in Linux In Linux, we use the history command to view the list of all previously executed commands. It has a very simple syntax: history Some options for pairing with the history command include: Option description -c clears the command history for the current session -w writes the command history to a file -r reloads the command history from the history file -n Limit the number of output of recent commands Simply run the history command to see a list of all previously executed commands in a Linux terminal: In addition to viewing command history, you can also manage command history and perform modifications to previously executed commands , reverse search command history or even delete history completely

SPDIFOUT connection line sequence on the motherboard. Recently, I encountered a problem regarding the wiring sequence of the wires. I checked online. Some information says that 1, 2, and 4 correspond to out, +5V, and ground; while other information says that 1, 2, and 4 correspond to out, ground, and +5V. The best way is to check your motherboard manual. If you can't find the manual, you can use a multimeter to measure it. Find the ground first, then you can determine the order of the rest of the wiring. How to connect motherboard VDG wiring When connecting the VDG wiring of the motherboard, you need to plug one end of the VGA cable into the VGA interface of the monitor and the other end into the VGA interface of the computer's graphics card. Please be careful not to plug it into the motherboard's VGA port. Once connected, you can

Glodon Software is a software company focusing on the field of building informatization. Its products are widely used in all aspects of architectural design, construction, and operation. Due to the complex functions and large data volume of Glodon software, it requires high computer configuration. This article will elaborate on the computer configuration recommendations of Glodon Software from many aspects to help readers choose a suitable computer configuration processor. Glodon Software requires a large amount of data calculation and processing when performing architectural design, simulation and other operations. Therefore, the requirements for the processor are higher. It is recommended to choose a multi-core, high-frequency processor, such as Intel i7 series or AMD Ryzen series. These processors have strong computing power and multi-thread processing capabilities, and can better meet the needs of Glodon software. Memory Memory is affecting computing

iPhone lets you add medications to the Health app to track and manage the medications, vitamins and supplements you take every day. You can then log medications you've taken or skipped when you receive a notification on your device. After you log your medications, you can see how often you took or skipped them to help you track your health. In this post, we will guide you to view the log history of selected medications in the Health app on iPhone. A short guide on how to view your medication log history in the Health App: Go to the Health App>Browse>Medications>Medications>Select a Medication>Options&a
