Concentrated issues

Here is the list of the lines that generated the most issues.

File	Count	Analysis
/ARC2_Class.php:20	8	Don't Change Incomings Make Global A Property Variable Is Not A Condition Wrong Type For Native PHP Function Global Usage Preprocessable
/extractors/ARC2_RdfaExtractor.php:183	7	Used Once Variables (In Scope) Iffectations Buried Assignation Written Only Variables Nested Ifthen Merge If Then Used Once Variables
/extractors/ARC2_RdfaExtractor.php:270	7	Used Once Variables (In Scope) list() May Omit Variables Iffectations Uses Default Values Buried Assignation Written Only Variables Wrong Type For Native PHP Function
/parsers/ARC2_SPARQLParser.php:764	7	Used Once Variables (In Scope) Iffectations Buried Assignation Written Only Variables Drop Else After Return No Need For Else
/parsers/ARC2_TurtleParser.php:95	7	Used Once Variables (In Scope) Forgotten Visibility Never Used Parameter No Boolean As Default Use Named Boolean In Argument Definition Max Level Of Nesting Method Signature Must Be Compatible
/parsers/ARC2_TurtleParser.php:636	7	Used Once Variables (In Scope) Iffectations Buried Assignation Written Only Variables Drop Else After Return No Need For Else
/sparqlscript/ARC2_SPARQLScriptProcessor.php:573	7	Uses Default Values Drop Else After Return Bail Out Early No Need For Else Wrong Type For Native PHP Function @ Operator Strpos()-like Comparison
/parsers/ARC2_LegacyXMLParser.php:279	6	Used Once Variables (In Scope) Forgotten Visibility Methods Without Return PHP Keywords As Names Unused Arguments Mismatched Default Arguments
/parsers/ARC2_SPARQLParser.php:29	6	Used Once Variables (In Scope) Forgotten Visibility Methods Without Return Never Used Parameter Mismatched Default Arguments Method Signature Must Be Compatible
/sparqlscript/ARC2_SPARQLScriptParser.php:25	6	Used Once Variables (In Scope) Forgotten Visibility Methods Without Return Never Used Parameter Mismatched Default Arguments Method Signature Must Be Compatible
/store/ARC2_Store.php:236	6	Used Once Variables (In Scope) Uses Default Values Buried Assignation Written Only Variables Useless Instructions Cast To Boolean
/store/ARC2_StoreLoadQueryHandler.php:279	6	Uses Default Values Unknown Pcre2 Option Nested Ifthen Wrong Type For Native PHP Function Invalid Regex Possible Missing Subpattern