The error Illegal string offset ‘whatever’ in… generally means: you’re trying to use a string as a full array. That is actually possible since strings are able to be treated as arrays of single characters in php. So you’re thinking the $var is an array with a key, but it’s just a string with standard … Read more
This comes up in Java 5 and later if you’re using collections without type specifiers (e.g., Arraylist() instead of ArrayList<String>()). It means that the compiler can’t check that you’re using the collection in a type-safe way, using generics. To get rid of the warning, just be specific about what type of objects you’re storing in … Read more
Display errors could be turned off in the php.ini or your Apache configuration file. You can turn it on in the script: error_reporting(E_ALL); ini_set(‘display_errors’, ‘1’); You should see the same messages in the PHP error log.
Why should I enable warnings? C and C++ compilers are notoriously bad at reporting some common programmer mistakes by default, such as: forgetting to initialise a variable forgetting to return a value from a function arguments in printf and scanf families not matching the format string a function is used without being declared beforehand (C … Read more
Notice / Warning: Undefined variable From the vast wisdom of the PHP Manual: Relying on the default value of an uninitialized variable is problematic in the case of including one file into another which uses the same variable name. It is also a major security risk with register_globals turned on. E_NOTICE level error is issued … Read more