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I try to style the admin area with a dynamic css. I need to configure some elements regarding the frontend user defines. He can choose a color and this color should reflected in some elements in the admin area (e.g. buttons in admin area). My approach: Setting up a evacolor.css, but let apache interpret this as a php file. This works so fare:

.htaccess in the same dir, as my color.css:

<FilesMatch "\.css$">
    SetHandler application/x-httpd-php
    Header set Content-type "text/css"
</FilesMatch>

My evacolor.css looks like:

<?php
 $absolute_path = explode('wp-content', $_SERVER['SCRIPT_FILENAME']);
 $wp_load = $absolute_path[0] . 'wp-load.php';
  header("Content-type: text/css; charset: UTF-8");
  header('Cache-control: must-revalidate');

    $test = "#ff00ff";
?>
 
body {
  background: <?php echo $test;?>;
}
.... and so on

This works fine. Now I need to pull my color out from the wp_options table and all the problems starts.

  1. I tried $color_items = get_option( 'cornerstone_color_items' ); => Uncaught Error: Call to undefined function get_option() I tried to include include_once('wp-includes\option.php'); But this ends in => Call to undefined function wp_installing() Ok, let's includ this also include_once('wp-includes\load.php'); => Call to undefined function apply_filters()

Hence. Next try:

global $wpdb;    
$result = $wpdb->get_results( "SELECT * FROM wpeva_options WHERE option_name = 'cornerstone_color_items'");
print_r($result)

=> Uncaught Error: Call to a member function get_results()

I include require_once($wp_load); => Your PHP installation appears to be missing the MySQL extension which is required by WordPress.

I give up. No more ideas.

Does anyone has an idea, how to use a dynamic css (for admin, resp. backend) and use inside this css a color value, which is stored in wp_option table? Even my attempt to define a global variable has had no success: $GLOBALS['color'] = '#ff00ff'; and also define('CICOLOR', '#ff00ff'); are empty in my dynamic css;

Any ideas? Any help? Thank you :)

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  • 5
    This seems like overkill. You'd have a much easier time just using CSS variables in the CSS file and defining those variables in an inline style block added by the plugin. Apr 21 at 10:15
  • Thank you Jacob. But how to do this? I have a color value stored in my wp-table. This value can change. Now I need this value in my color.css from an admin color scheme. I don't know.... how can I setup this with css-variable. Any more advice? Thank you.
    – mickna
    Apr 21 at 10:19
1

Thank you @Jacob for pointing me in the right direction. This was an overkill!

=> in function php I call my values, set this in a global css variable. Pick this variable in my admin css.

Again: Thank you! Lifesaver :))

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