enriquerene

Didn’t work too. I changed everything to call by absolute path but this enqueue doesn’t work.

Lemme point out some things:

1) I’m developing in localhost;
2) I’m using the twenty-sisxteen theme;
3) The unique plugin installed is my own one;
4) I went to Appearance >> Editor >> header.php and put wp_head();,
do_action('wp_head');, together and separated there;

With above items, nothing happened.
I tried these:

https://developer.www.ads-software.com/reference/functions/wp_enqueue_style/#source-code

https://stackoverflow.com/questions/3472087/how-to-use-wp-enqueue-style-in-my-wordpress-theme

In this last link, I tried the answer pointed as solution and the post bellow… nothing.

My code is now as follow:

In my main file

add_action( ‘wp_head’, ‘easydm_add_link_tag_to_head’ );

In my functions file:

function easydm_add_link_tag_to_head() {
wp_enqueue_style( ‘style’, plugins_url( ‘/css/style.css’, __FILE__ ), false, ‘1.0’, ‘all’ );
}

I tried many possibilities like ‘/wp-contents/plugins/css’, ‘/wp-contents/plugins/css/’, ‘wp-contents/plugins/css’, ‘/wp-contents/plugins/css/style.css’, ‘wordpress/wp-contents/plugins/css/style.css’…

If makes clearer, the absolute path to my WP installation is ‘/var/www/wordpress’ and I access ‘localhost/wordpress’.

I forgot at the above post…I’d like to share a video what helped me to solve this:

Nice, you really help me to understand some stuff around this question. I’m doing some more tests but to my aim I got it.
Your last answer assumes I’m developing in server, but I’m in localhost… after I’ll test in my own site and try publish to WP repositories.

What I need that happens when someone activate my plugin is to create a directory to upload files. So in my main page of plugin I have

define( ‘EASYDM_SETTINGS_PATH’, ‘settings/’ );

require_once EASYDM_SETTINGS_PATH.’easydm-functions.php’;

register_activation_hook( __FILE__, ‘easydm_activation’);

Then inside my easydm_functions.php

function easydm_activation() {
$path = easydm_root_directory( EASYDM_PLUGIN_DIR );
mkdir( $path, 0777, true );
}

Clearly my plugin prefix is easydm (Easy Downloader Manager) and mkdir is here “https://php.net/manual/pt_BR/function.mkdir.php”. (I’m saying this because some people who comes here may be novice in PHP too.)

At the final of this discussion I’m still not sure why simple things like print_r() or echo don’t work. For me, it seems like register_activation_hook() just accept activate back-end stuff.

Thanks for everything

I tried and nothing happens :/
I tried four ways:

1)

add_action( __FILE__, ‘easydm_activation’ );
– – – – – – – –
function easydm_activation_hook() {
error_log(‘Notice: Plugin Easy DM was activated’);
}

function easydm_activation() {
register_activation_hook( __FILE__, ‘easydm_activation_hook’);
}

2)

register_activation_hook( __FILE__, ‘easydm_activation’);
– – – – – – – – – – – –
function easydm_activation() {
error_log(‘Notice: Plugin Easy DM was activated’);
}

3)

add_action( __FILE__, ‘easydm_activation’ );
– – – – – – – – –
function easydm_activation() {
error_log(‘Notice: Plugin Easy DM was activated’);
}

4)

add_action( ‘activate_’.__FILE__, ‘easydm_activation’ );
– – – – – – – – – –
function easydm_activation_hook() {
error_log(‘Notice: Plugin Easy DM was activated’);
}

function easydm_activation() {
register_activation_hook( __FILE__, ‘easydm_activation_hook’);
}

In none of them, nothing happens. I open my wp-content directory and error log isn’t there (I tried hidden files too).
My wp-config has:

define(‘WP_DEBUG’, true);
define(‘WP_DEBUG_LOG’, true);
define(‘SCRIPT_DEBUG’, true);
define(‘SAVEQUERIES’, true);

ok. But I don’t understand how to use this in practice. I can’t use this when I’m coding, I don’t see any difference. I put some echos and JS alerts to tell me where and how this happens, but nothing happens.
For example:

define( ‘EASYDM__PLUGIN_URL’, plugin_dir_url( __FILE__ ) );

function easydm_js_alert(){
echo ‘<p>’.__FILE__.’
‘.__DIR__.'</p>’;
}

register_activation_hook( EASYDM__PLUGIN_URL, ‘easydm_js_alert’);

This is in my ‘index’ plugin. Is it right? Is it working? How can I check these things?