TYPO3 Core

RemoveXSS cannot be used with PHP 5.2.9 as it is defined as this:

class RemoveXSS {

function RemoveXSS($val) {
        // code snipped
    }

}

with the intent to use it like this:

$foo = RemoveXSS::RemoveXSS($some_input);

In PHP 5.2.9 this call issues a warning as a non-static method is used as a static method (I wonder if other /more-critical/ core will be affected too):

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Fatal error: Non-static method RemoveXSS::RemoveXSS() cannot be called statically, assuming $this from incompatible context
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Problem: it is not possible to make it static either:

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Fatal error: Constructor RemoveXSS::RemoveXSS() cannot be static
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Solution: make non-static method RemoveXSS a wrapper for static method process() - same name as in trunk - and mark the former as deprecated.
(issue imported from #M10759)