How to Code

Add this to your WP custom css

body {overflow:visible;}
table{border-color:black;border-collapse:collapse;mso-padding-alt:0in 5.4pt 0in 5.4pt}
textarea{ font-size:8pt; }
hr.cell_split{color:red;}
tr.alt{background-color:#EEEEEE;}
td{font-family:verdana;font-size:8pt;border:1px solid #000000;}
.navletters {margin:0 7px 0 7px; }
td.code_mod {max-width: 600px;}
div.scroll{overflow:auto;text-align:left;min-width:200px;max-width:600px;max-height:200px; }
input[type="button"],input[type="submit"]{
background-color: #64c9ea;
border: none;
border-radius: 2px;
box-shadow: none;
color: #fff;
cursor: pointer;
padding: 5px 5px;
min-width:10px;margin:5px;}
input[type="text"],input[type="select"] {font-family:verdana;font-size:10pt;margin:5px;padding: 2px 2px;width:70%}

When a user writes a shortcode:

[my_shortcode att1="Attribute 1 value" att2="Attribute 2 value"]

The attributes are passed to the shortcode's callback function as an array as the first argument:

function my_shortcode_callback( $atts ) {
// $atts = array(
// 'att1' => 'Attribute 1 value',
// 'att2' => 'Attribute 2 value',
// );
}
add_shortcode( 'my_shortcode', 'my_shortcode_callback' );

The function shortcode_atts():

Combine user attributes with known attributes and fill in defaults when needed.

So you use shortcode_atts() to create an array with default values all supported attributes, except for any that were provided by the user. To do this you pass an array of all supported attributes and their defaults as the first argument, and the user-provided attributes as the second argument. The second argument will therefore be the same array that is passed to the callback function:

function my_shortcode_callback( $user_atts ) {
// $user_atts = array(
// 'att1' => 'Attribute 1 value',
// 'att2' => 'Attribute 2 value',
// );

$default_atts = array(
'att1' => 'Attribute 1 default',
'att2' => 'Attribute 2 default',
'att3' => 'Attribute 3 default',
);

$atts = shortcode_atts( $default_atts, $user_atts, 'my_shortcode' );

// $atts = array(
// 'att1' => 'Attribute 1 value',
// 'att2' => 'Attribute 2 value',
// 'att3' => 'Attribute 3 default',
// );
}
add_shortcode( 'my_shortcode', 'my_shortcode_callback' );

You do this so that you can do things like use $atts['att3'] without causing a PHP error if the user did not enter att3="Attribute 3 value" when placing the shortcode.

The 3rd argument of shorcode_atts() should be set to the shortcode name. This makes it possible to filter the shortcode attributes like this:

add_filter(
'shortcode_atts_my_shortcode',
function( $atts ) {
$atts['atts2'] = 'Attribute 2 override';

return $atts;
}
);

---

To create a WordPress shortcode with attributes, you need to define a PHP function that accepts an
$atts parameter and use the shortcode_atts() function to parse and manage the attributes.
1. Define the Callback Function
The shortcode handler function accepts three optional parameters:

$atts: An associative array of attributes provided by the user in the post content.
$content: The content enclosed between the opening and closing tags (for enclosing shortcodes).
$tag: The shortcode tag name itself.

The shortcode_atts() helper function merges the user-provided attributes with a set of default values, ensuring all defined attributes exist in the resulting array and unsupported ones are ignored.
function custom_button_shortcode( $atts, $content = null, $tag = '' ) {
// Define default attributes and merge with user-provided attributes
$a = shortcode_atts(
array(
'class' => 'button', // Default class
'href' => '#', // Default URL
'color' => 'blue', // Default color
),
$atts,
'custom_button' // The shortcode name (tag) for filtering
);

// Sanitize and use the attributes
$class = esc_attr( $a['class'] );
$href = esc_url( $a['href'] );
$color = esc_attr( $a['color'] );
$content = sanitize_text_field( $content );

// Return the HTML output
return '' . $content . '';
}

2. Register the Shortcode
Use the add_shortcode() function to register your handler function with a specific shortcode tag. This code is typically placed in your theme's functions.php file or a custom plugin file.

add_shortcode( 'custom_button', 'custom_button_shortcode' );

3. Use the Shortcode in WordPress
You can now use the shortcode in your post or page content with or without attributes.

With attributes:
[custom_button href="https://example.com" color="red" class="my-btn"]Visit Example[/custom_button]
Without attributes (uses defaults):
[custom_button]Learn More[/custom_button]
Self-closing form (if $content is optional):
[custom_button href="https://example.com" /]

Key Points
Return, Don't Echo: Shortcode functions must return their output as a string, not echo it directly.
Attribute Names: Attribute names are converted to lowercase automatically. Use lowercase and underscores for best compatibility.
Security: Always sanitize user input (attributes and content) using functions like esc_attr(), esc_url(), or sanitize_text_field() before outputting to prevent security vulnerabilities.
Spacing: A space is required between the shortcode name and its first attribute, and between each attribute.

---

/*
* Plugin Name: Members Only
* Description: Use short code to check for priveleges and creates Admin access.
* Version: 1.0
* Author: Software Web Design
* Author URI: https://softwarewebdesign.com
*/


$appid="777";
if ( ! defined( 'SWD_PATH' ) ) {
define( 'SWD_PATH', plugin_dir_path( __FILE__ ) );
}
require_once( SWD_PATH."SWD/WPfunctions.php");
$connection=$wpdb->dbh;
function MemberCheck($atts){
global $wpdb; global $appid;global $connection;
//print_r ($atts);exit;
$dis= $_COOKIE["Member"];
//if($dis!="true"){ header("Location:https://www.keepcofree.com/member-login/");exit; }
if(substr($dis,0,4)!="true" || $dis=="true"){
?>^script language="javascript">location.href="https://www.keepcofree.com/member-login/" } else{
//?echo "shoot9".$dis;
$L1=strlen($dis); $dis=substr($dis,4,$L1-4);
//echo "shoot".$dis; exit;
$individualid=(int)$dis;
$r=new mysqli_swd();
$sql="SELECT * FROM individual WHERE individualid = $individualid";$r->dbsql($sql);
if($atts["level"]==1)return;
if($atts["level"]==2 && $r->data1["paid"]==0){ ?>^script language="javascript">location.href="https://www.keepcofree.com/member-login/" //echo "shoot=".$individual;exit;
}

return;
}

//include( plugins_url()."/Membersonly/SWD/WPfunctions.php");
add_shortcode("Members-Only", "MemberCheck");

function my_admin_menu() {
add_menu_page(__( 'Godzilla', 'my-textdomain' ),__( 'SWD Members', 'my-textdomain' ),'manage_options','sample-page','SWD_admin_page_contents','dashicons-schedule',10);
}
add_action( 'admin_menu', 'my_admin_menu' );
function SWD_admin_page_contents() {
?>




}
function register_my_plugin_scripts() {
wp_register_style( 'my-plugin', plugins_url( 'ddd/css/plugin.css' ) );
wp_register_script( 'my-plugin', plugins_url( 'ddd/js/plugin.js' ) );
}
// add_action( 'admin_enqueue_scripts', 'register_my_plugin_scripts' );
function load_my_plugin_scripts( $hook ) {
// Load only on ?page=sample-page
if( $hook != 'toplevel_page_sample-page' ) {
return;
}
// Load style & scripts.
wp_enqueue_style( 'my-plugin' );
wp_enqueue_script( 'my-plugin' );
}
add_action( 'admin_enqueue_scripts', 'load_my_plugin_scripts' );

//END ADMIN

?>