Summary of html form knowledge

The form is mainly responsible for the data collection function in the web page. A form has three basic components: Form tag: This contains the URL of the CGI program used to process the form data and the method for submitting the data to the server. Form fields: include text boxes, password boxes, hidden fields, multi-line text boxes, check boxes, radio button boxes, drop-down selection boxes, file upload boxes, etc. Form buttons: include submit buttons, reset buttons and general buttons; used to transfer data to CGI scripts on the server or cancel input. Form buttons can also be used to control other processing tasks with defined processing scripts.

1. html form knowledge collection

Form mark

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Form attributes:

◆ action: The server program used to specify the form, stipulates where to send the form data when the form is submitted. The value of action is: first, a URL (absolute URL/relative URL), generally pointing to a program on the server side. The program receives the data submitted by the form (that is, the form element value) and processes it accordingly

2. PHP workflow custom form solution

requires a system that can customize the form, and then there can be a process, such as applying for office supplies, I can send it after filling in the form Give it to my supervisor, and then he signs it, and then sends it to other people, and finally it comes back to me.
It’s a system similar to OA, but generally OA systems are too complicated. I only want a simple one and don’t want other functions. Just one process

3. HTML form (form) study notes

A web form can send the data entered by the user to the server for processing. Because Internet users fill out forms using checkboxes, radio buttons, or text fields, WebForms form resemble files or databases. For example, WebForms can be used to enter shipping or credit card information to order products, or can be used to retrieve data (e.g., search on a search engine)

4. Some basic usage and techniques of forms

Use images instead of submit buttons
When there is only one submit button, it can be easily implemented without adding an event function. The code is:

<input type="image" name="..." src="url" width="" height="..." border="...">

Except the label is changed to input type= Except for "image", other attributes are the same as those of the tag.

5. Detailed introduction to HTML forms

HTML forms are used to collect different types of user input. HTML5 Input, with multiple new form input types, provides better input control and validation.

6. Detailed explanation of php form submission to database

Generally when friends visit some websites and want to use the website or see more content on the website, the website will Users are required to register as new users. The website will store the new user's registration information in the database and retrieve it when needed.

In this way, the website will first create its own database and corresponding tables. Here we use php to create a simple database and table, and use phpMyAdmin to create the MySql database and table.

7. About the specific introduction of form components in HTML

What is in the form tag, the following is a detailed introduction to its specific use through examples.

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