Prepare your apps to PHP7, which is soon to become the “current” version.
One of the problems might be the usage of preg_replace() function with “/e” modifiers. You might get this error message:
Deprecated function: preg_replace(): The /e modifier is deprecated, use preg_replace_callback instead
The solution is, as suggested, the preg_replace_callback() function. Here is one example:
$pattern = “my_pattern”;
$new_str = preg_replace(“/($pattern)/e”, “‘$1′”, $new_str);
will become
$new_str = preg_replace_callback(“/($pattern)/”, function($matches){return $matches[0];},$new_str);
Move applications to PHP7