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troubleshooting [2014/10/17 23:08]
Christoph M. Becker [Debug Mode] linked to white_screen
troubleshooting [2018/10/26 15:33]
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-====== Troubleshooting ====== 
-===== Debug Mode ===== 
-Sometimes it's necessary to debug CMSimple_XH and the installed plugins, particularly if you're facing a "​[[White Screen]]"​. This can be done easily without changing any PHP scripts -- not even FTP access is absolutely necessary. 
-To do so, just upload a file _XHdebug.txt to the configured downloads folder of your installation. The contents of this file have to be a single digit between 0 and 6 (the debug level). The meaning of this digit is given in the following list: 
-  *   0 - Turn off all error reporting 
-  *   1 - Display Runtime errors except warnings 
-  *   2 - Display Runtime errors 
-  *   3 - Display Runtime errors + notices 
-  *   4 - Display all errors except notices and warnings 
-  *   5 - Display all errors except notices 
-  *   6 - Display all errors 
-If the file is empty, debug level 1 is set. Since CMSimple_XH 1.5 there'​s already a file XHdebug.txt in the download folder. To activate debug mode you just have to rename this file (i.e. prepend an underscore to the name). 
-As soon as the file exists a message is shown in the back-end, that debug mode is enabled, and errors will be reported in the (X)HTML output directly below it. The debug output is only displayed in admin mode (("​fatal"​ PHP errors, i.e. those causing a "blank screen",​ however, will be displayed always)), but due to a bug some of it was actually shown to visitors in CMSimple_XH versions before 1.5.4, so it's best to turn debug mode off, when you've finished debugging. 
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