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I recently just moved servers with a multisite install and kept the same domain.
I can access all the backend features and logins for each subdomain but when trying to visit each subdomain site, it just loads a blank white page.
I have setup wildcard subdomains in cpanel and checked the wp options and wp config.
Has anyone else ever had this issue when migrating servers?
Your comments state that the line in question that gives the fatal error causing your white pages is this line:
<div id="whatstrending"><h1><?php echo get_option('radio_options')['blog-header'];?></h1></div>
Most notably:
get_option('radio_options')['blog-header'];
Or more specifically:
functioncall()[]
This is invalid PHP up until recently, and your new host doesn't run a version of PHP that supports this.
You can fix it by refactoring it from:
echo get_option('radio_options')['blog-header'];
to:
$options = get_option('radio_options');
echo $options['blog-header'];
Rinse repeat in any other situation that follows the same pattern. As a sidenote, the function()['arrayaccess'] pattern is an anti-pattern, a single line should do a single thing, and calling a function then accessing its return value is 2 things. Not to mention that it will fail if the function doesn't return an array.
