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
It’s not a core behaviour to overwrite the global $_GET array, which means it’s likely that something else then WordPress itself is the issue here. I would suggest the following steps to debug the issue: Disable all active plugins and revert to standard theme, see if the problem persists. If the problem is still there, … Read more
Setting Cookie Using a Variable from the URL
I recommend you to store it in WordPress options table using function add_option() function as this is site specific data and not post/category specific.
Those are the Mustache-inspired syntax you are talking about. That can be acheived using wp.template WordPress function. The script you showing is javascript templating in WordPress wp.template() is a cool little JavaScript utility method WordPress uses this utility to load templates for all of the backbone views, but backbone is not required to use it. … Read more
Just check if the variable is set, using the code from your link: add_action( ‘init’, ‘set_agent_cookie’ ); function set_agent_cookie() { if (isset($_GET[‘code’])) { $name=”agent”; $id = $_GET[‘code’]; setcookie( $name, $id, time() + 3600, “https://wordpress.stackexchange.com/”, COOKIE_DOMAIN ); } }
Why do you need this? In wp-config you can set defines. They will be accesible everywhere without needing to use globals. Define something: define(‘MY_DEFINE_NAME’, ‘THE_VALUE’);. Then in your templates you can show the value like this: echo MY_DEFINE_NAME; Or set the value to a variable: $var = MY_DEFINE_NAME;.
Your installation might be … less than optimal. Using my Mini Theme, no plugins and the following code on the front page right after the opening body tag … print count( $GLOBALS ) . ‘ $GLOBALS<br>’; print @count( get_defined_vars(), 1 ) . ‘ variables<br>’; print count( get_defined_constants( TRUE )[‘user’] ) . ‘ constants’; … I … Read more
This is perhaps too broad a question to answer well. The $post global could be used in all sorts of ways. Whether or not it should be used depends on each circumstance. However, as I understand it, the main intended purpose of the $post global is its use in theme template files. When you use … Read more
I’ve defined a variable – let’s call it $header_var, which is placed in the header.php file. I would like this variable to be passed onto my template file (in this case taxonomy.php). global is not a very recommended way to do the trick, but it works if you use it properly: put it before to … Read more