Can you keep session data for visitors?

I would recommend using $_GET or $_POST variables … the same way you submit the form. This has nothing to do with session. Basically, when the user fills out the form, you’re populating $_POST with information. When the user submits the form, you process the information in $_POST and display a thank you page … … Read more

Use to track referrals

Try using add_query_arg(). For example, if your query key is “ref”, and your query key value is “AFFILIATEID”: <?php add_query_arg( ‘ref’, ‘AFFILIATEID’ ); ?> If you need to retrieve your query arg value, use get_query_var(): <?php get_query_var( ‘ref’ ); ?>

Variable scope producing undefined variable notices in included files

I have found the answer in another thread. Passing variables through locate_template Essentially the WordPress function get_template_part changes the scope of the variable $user_choice. PHP default behaviour when using include() is that the variable from the current script is still available in the included file. However because get_template_part() is a function any variables in that … Read more

Replacing string with a variable in php

There are 4 valid ways of defining a string, see this question for more details. However in your case there is a special exception provided by PHP. Most users are unaware of it however, and it does leave ambiguities, as it’s no longer possible to tell a string literal, a constant, or a define apart, … Read more

How to pass data around?

I have different menu items. When the user clicks on a menu item, I want them to go to a particular destination. Each menu’s destination has a different background color. When you say destination I assume you mean page or post. If you use WordPress’s built in body class and post class you can target … Read more

Print string to footer using wp_footer option

Do you have to use a variable for you script? I have done this in the past and has worked… // add script to the footer and break out of PHP function slider_option(){ ?> <script>script function data</script> <?php } ?> add_action(‘wp_footer’,’slider_option’); If this does not work make sure you have the footer hook in you … Read more

What is the $current_screen global variable?

$current_screen is a global variable in admin screens. It holds the result of WP_Screen::get( $hook_name )->set_current_screen();. WP_Screen is a class, get() is a static method that returns a real object – an instance of WP_Screen with some predefined properties: $screen->base = $base; $screen->action = $action; $screen->post_type = (string) $post_type; $screen->taxonomy = (string) $taxonomy; $screen->is_user = … Read more

Using variable in two functions

As a matter of good coding practice, global variables are problematic at best, dangerous at worst. They should be avoided if at all possible. Why? Because what if some other plugin developer also decides to define$a as a global? Whatever that plugin is doing will now overwrite your global $a and yours has the potential … Read more

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