When I upgraded a site to a new version of WordPress, I was unable to update the theme because it has not been updated in several years. How to define an array as constant with define? It then treats the text as though it was a quoted string, so the code will still work correctly in this case. Anyone see what the issue is? Thanks for you answer, Andrew. Given its rare usage, and the problems it causes with internal optimisations, it has now been deprecated. This can often be avoided by identifying and closely inspecting before posting.
For instance, if you're reading a large file into a variable or are fetching many records from a database and are storing them all in an array, that may use a lot of memory. Hi hslee Thanks for posting. If you google, you will get sample config. Move any header sending code before that code. That said, there are situations where legacy code may not get updated right away, if ever, so this package will pick up the load and keep that legacy code from breaking. The concept is quite simple. Given the security implications of this, using without a second argument has now been deprecated.
Example Customer getting a blank page after upgrading to a newer version of OpenCart. It means that you have a typo, or are using a constant that isn't defined. Then pass it as a parameter, store it as property, or share it via the global scope. Not the answer you're looking for? I use Vantage theme in my wordpress. You'll see what's actually in it then. I've found this especially useful for storing the constant string i. However, doing so is not recommended.
Sometimes it might be more straightforward to temporarily enable the display of errors. Browse other questions tagged or. The white page will then display the error message. If you have error logging enabled, you will find the concrete error message in your error log. You may also be able to enable or install the extension using your package manager e.
Sometimes the wrong file or directory names are used, the fix is then to use the right ones. You're still allowed to define other constants with the same name but capitalized differently except for all lowercase. Alternatively you can also use the online file management, such as the File Manager in cPanel, to edit the file directly online. In case of missing includes, make sure to include the file declaring the function before calling the function. Hence, this list tries to explain the solution in a general way to apply. So i figured there was an encoding issue. The undefined constant is in your child theme so the management of that line of code would be up to you.
Yeah that's a pretty strange behavior. Best regards Constant name must not written as string. The source is then patched with the script file changes, and saved to a temp file. The original source file is never altered. Common causes include missing extensions and includes, conditional function declaration, function in a function declaration or simple typos. Also known as the White Page Of Death or White Screen Of Death. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 on this site the.
Parameters name The name of the constant. The page is empty and white. I found the below message in the above log-in screen. We have just upgraded an OpenCart shop store from version 1. Off-topic, not a programming question. So this is typically not a code problem, but a server configuration issue.
Validate that an object is actually an object before calling its methods. This is a huge drawback in my opinion. You'll see what's actually in it then. Also, where is success coming from anyways? This does require a bit of a conceptual awareness of what's going on behind the scenes and when data is stored in memory vs. Constants are like variables except that once they are defined they cannot be changed or undefined.
Likewise, another common cause for this warning is when the opening code block in it, you should not have any spaces in between them. You could replace empty here with! To get rid of the messages, simply quote your associative keys. Intersting to note: I found this in php5 on windows If you try to unset a constant which you cant but maybe you have a Jr. As a matter of fact, I can't think of another case where you would want a case-insensitive constant. That is sad because once you understood the root cause, fixing the error is trivial.