Introduction to using ajax to transfer values ​​between js and php

不言
Release: 2023-04-02 14:02:01
Original
5450 people have browsed it

This article mainly introduces the introduction of using ajax to transfer values ​​between js and php. It has a certain reference value. Now I share it with you. Friends in need can refer to it

  1. Example 1: js passes 3 values ​​​​to php. After processing, the processed values ​​​​are returned to the html page.

    In the picture below, click "Output Return Value" to display the result:

    Introduction to using ajax to transfer values ​​between js and php

    Introduction to using ajax to transfer values ​​between js and php

  2. ##Process: In the HTML page, click "Output Return Value", pointing to the click event of btn, which corresponds to ajax and passes the value to the php corresponding to the url; php uses $_POST to receive the passed value and process it simply The passed value is returned as html.

    Introduction to using ajax to transfer values ​​between js and php

    Introduction to using ajax to transfer values ​​between js and php

    Introduction to using ajax to transfer values ​​between js and php

  3. ##Example 2: Enter "Wang Xiaoming" in the input box, click the "OK" button, and "my name is: Wang Xiaoming" will be displayed. If there is an error, an error pop-up box will pop up.
  4. Introduction to using ajax to transfer values ​​between js and php

    Introduction to using ajax to transfer values ​​between js and php

    Introduction to using ajax to transfer values ​​between js and php

    ##Process: Enter text in the input box and click " OK" button, btn2 executes the click event, and the corresponding ajax below it passes the value to the php corresponding to the corresponding url. Among them, the points of attention regarding ajax have been marked with comments on the picture. Please pay attention when writing.
  5. Introduction to using ajax to transfer values ​​between js and php

    Introduction to using ajax to transfer values ​​between js and php

    ajax The return value is json type. When receiving it on the php side, choose to use php input stream php ://input gets the original input content; the result value needs to be json_encoded to JSON encode the variable.
  6. Introduction to using ajax to transfer values ​​between js and phpEND

$.ajax When passing data, pay attention to the return The type of the value, especially in json format, must be paid attention to when converting
  • When passing the value, be careful not to have too many commas in the data, and there should be no comma at the end
  • The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website!
Related recommendations:

Introduction to curl requesting other interfaces in the php interface


5 ways for php to generate unique order numbers method

The above is the detailed content of Introduction to using ajax to transfer values ​​between js and php. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!