国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

Home CMS Tutorial WordPress Responsive, Real-Time Graphs in WordPress: Form Processing

Responsive, Real-Time Graphs in WordPress: Form Processing

Feb 20, 2025 am 09:19 AM

This tutorial shows how to build a WordPress form for data collection, using a workout tracker as an example. The form collects pushups, workout date, and user login details. A database connection script improves database credential management across multiple files. A PHP file processes form data, preparing it for database insertion. Troubleshooting tips and resources are provided.

Key Takeaways:

  • Creates a WordPress form for data entry (pushups, date, user).
  • Develops a reusable database connection script.
  • Builds a PHP file to process and insert form data into a database.
  • Offers troubleshooting guidance for common errors.

Part 1 Recap:

  1. Loaded a base plugin containing graphing libraries.
  2. Uploaded a blank PHP file via FTP.
  3. Configured WordPress to locate custom PHP files.
  4. Introduced basic WordPress admin functions.

Part 2 Recap:

  1. Created a blank post with a placeholder shortcode.
  2. Registered the shortcode with WordPress.
  3. Created a database table for data storage.

This section focuses on creating the data collection form. Even with existing database data, reviewing this section is beneficial before proceeding to database querying and data formatting for the graph plugin. This is particularly helpful for beginners. While the example uses a workout tracker, the principles are adaptable to other applications.

Step 1: Building the Pushup Form

This step builds a simple form for recording pushup workouts. Open custom-workout.php (in Plugins > Editor) and replace its contents with the following PHP code:

<?php
function pushups() {
    get_currentuserinfo();
    $current_user = wp_get_current_user();
    $wpuser = $current_user->user_login;
    $currentpage = $_SERVER['REQUEST_URI'];
    echo '[Login]('.$currentpage.') to start adding pushups!';
    echo '[Register]('.$currentpage.') if you have not already.';
    echo '<form method="get" action="add_pushups.php">';
    echo '<label>Number of Pushups: <input type="number" name="pushups_count"></label><br>';
    echo '<label>Date of Workout: <input type="date" name="pushups_date"></label><br>';
    echo '<input type="hidden" name="pushups_wpuser" value="'.$wpuser.'">';
    echo '<input type="hidden" name="current_page" value="'.$currentpage.'">';
    echo '<input type="submit" value="Submit">';
    echo '</form>';
    echo '---';
}
add_shortcode('pushups_sc', 'pushups');
?>

This code uses echo to output the form's HTML. The form is added to the "Add Pushups" post created earlier (containing only the [pushups_sc] shortcode). After adding the code, clear your WP cache to see the changes.

Responsive, Real-Time Graphs in WordPress: Form Processing

Submitting the form (though it won't yet function) demonstrates data transmission to the next processing step. Styling can be added later.

Step 2: Creating the Database Information Script

Best practice dictates separating database credentials from scripts. This speeds up access across multiple files. Create connect_to_db.php with the following code, replacing the bracketed values with your database credentials (obtainable from your hosting provider):

<?php
/* Database connection details */
function connect_to_db() {
    $username = "{username}";
    $password = "{password}";
    $hostname = "{hostname}";
    $dbname = "{database_name}";
    mysql_connect($hostname, $username, $password) or die(mysql_error());
    mysql_select_db($dbname);
}
?>

Upload this file to the plugins/flot-for-wp/flot folder.

Step 3: Processing Form Data with PHP

Create add_pushups.php and paste this code:

<?php
function pushups() {
    get_currentuserinfo();
    $current_user = wp_get_current_user();
    $wpuser = $current_user->user_login;
    $currentpage = $_SERVER['REQUEST_URI'];
    echo '[Login]('.$currentpage.') to start adding pushups!';
    echo '[Register]('.$currentpage.') if you have not already.';
    echo '<form method="get" action="add_pushups.php">';
    echo '<label>Number of Pushups: <input type="number" name="pushups_count"></label><br>';
    echo '<label>Date of Workout: <input type="date" name="pushups_date"></label><br>';
    echo '<input type="hidden" name="pushups_wpuser" value="'.$wpuser.'">';
    echo '<input type="hidden" name="current_page" value="'.$currentpage.'">';
    echo '<input type="submit" value="Submit">';
    echo '</form>';
    echo '---';
}
add_shortcode('pushups_sc', 'pushups');
?>

This file uses $_GET to retrieve form data, converts the date to a Unix timestamp, and inserts the data into the database. The commented-out echo statements are useful for debugging database connection issues. Upload this file to plugins/flot-for-wp/flot.

Checking Your Work and Troubleshooting

Test the form. If redirection doesn't work, check your code carefully. Use the debugging echo statements to identify problems. Common issues include typos and incorrect database connection details or header location syntax. After successful data insertion, verify the data in phpMyAdmin.

Responsive, Real-Time Graphs in WordPress: Form Processing

Remember, troubleshooting is a normal part of development. Use online resources (Stack Overflow, Google) and the comments section for assistance.

Recap:

This part created a form, a database connection script, a data processing script, and provided thorough testing and troubleshooting instructions. The next part will integrate a graphing library to visualize the collected data.

The above is the detailed content of Responsive, Real-Time Graphs in WordPress: Form Processing. For more information, please follow other related articles on the PHP Chinese website!

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

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to use the WordPress testing environment How to use the WordPress testing environment Jun 24, 2025 pm 05:13 PM

Use WordPress testing environments to ensure the security and compatibility of new features, plug-ins or themes before they are officially launched, and avoid affecting real websites. The steps to build a test environment include: downloading and installing local server software (such as LocalWP, XAMPP), creating a site, setting up a database and administrator account, installing themes and plug-ins for testing; the method of copying a formal website to a test environment is to export the site through the plug-in, import the test environment and replace the domain name; when using it, you should pay attention to not using real user data, regularly cleaning useless data, backing up the test status, resetting the environment in time, and unifying the team configuration to reduce differences.

How to use Git with WordPress How to use Git with WordPress Jun 26, 2025 am 12:23 AM

When managing WordPress projects with Git, you should only include themes, custom plugins, and configuration files in version control; set up .gitignore files to ignore upload directories, caches, and sensitive configurations; use webhooks or CI tools to achieve automatic deployment and pay attention to database processing; use two-branch policies (main/develop) for collaborative development. Doing so can avoid conflicts, ensure security, and improve collaboration and deployment efficiency.

How to create a simple Gutenberg block How to create a simple Gutenberg block Jun 28, 2025 am 12:13 AM

The key to creating a Gutenberg block is to understand its basic structure and correctly connect front and back end resources. 1. Prepare the development environment: install local WordPress, Node.js and @wordpress/scripts; 2. Use PHP to register blocks and define the editing and display logic of blocks with JavaScript; 3. Build JS files through npm to make changes take effect; 4. Check whether the path and icons are correct when encountering problems or use real-time listening to build to avoid repeated manual compilation. Following these steps, a simple Gutenberg block can be implemented step by step.

How to set up redirects in WordPress htaccess How to set up redirects in WordPress htaccess Jun 25, 2025 am 12:19 AM

TosetupredirectsinWordPressusingthe.htaccessfile,locatethefileinyoursite’srootdirectoryandaddredirectrulesabovethe#BEGINWordPresssection.Forbasic301redirects,usetheformatRedirect301/old-pagehttps://example.com/new-page.Forpattern-basedredirects,enabl

How to flush rewrite rules programmatically How to flush rewrite rules programmatically Jun 27, 2025 am 12:21 AM

In WordPress, when adding a custom article type or modifying the fixed link structure, you need to manually refresh the rewrite rules. At this time, you can call the flush_rewrite_rules() function through the code to implement it. 1. This function can be added to the theme or plug-in activation hook to automatically refresh; 2. Execute only once when necessary, such as adding CPT, taxonomy or modifying the link structure; 3. Avoid frequent calls to avoid affecting performance; 4. In a multi-site environment, refresh each site separately as appropriate; 5. Some hosting environments may restrict the storage of rules. In addition, clicking Save to access the "Settings>Pinned Links" page can also trigger refresh, suitable for non-automated scenarios.

How to send email from WordPress using SMTP How to send email from WordPress using SMTP Jun 27, 2025 am 12:30 AM

UsingSMTPforWordPressemailsimprovesdeliverabilityandreliabilitycomparedtothedefaultPHPmail()function.1.SMTPauthenticateswithyouremailserver,reducingspamplacement.2.SomehostsdisablePHPmail(),makingSMTPnecessary.3.SetupiseasywithpluginslikeWPMailSMTPby

How to make a WordPress theme responsive How to make a WordPress theme responsive Jun 28, 2025 am 12:14 AM

To implement responsive WordPress theme design, first, use HTML5 and mobile-first Meta tags, add viewport settings in header.php to ensure that the mobile terminal is displayed correctly, and organize the layout with HTML5 structure tags; second, use CSS media query to achieve style adaptation under different screen widths, write styles according to the mobile-first principle, and commonly used breakpoints include 480px, 768px and 1024px; third, elastically process pictures and layouts, set max-width:100% for the picture and use Flexbox or Grid layout instead of fixed width; finally, fully test through browser developer tools and real devices, optimize loading performance, and ensure response

How to integrate third-party APIs with WordPress How to integrate third-party APIs with WordPress Jun 29, 2025 am 12:03 AM

Tointegratethird-partyAPIsintoWordPress,followthesesteps:1.SelectasuitableAPIandobtaincredentialslikeAPIkeysorOAuthtokensbyregisteringandkeepingthemsecure.2.Choosebetweenpluginsforsimplicityorcustomcodeusingfunctionslikewp_remote_get()forflexibility.

See all articles