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HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the TXT format, set format=txt.
See the complete documentation, or API help for more information.
Array
(
    [query] => Array
        (
            [namespaces] => Array
                (
                    [-2] => Array
                        (
                            [id] => -2
                            [case] => first-letter
                            [*] => Medium
                            [canonical] => Media
                        )

                    [-1] => Array
                        (
                            [id] => -1
                            [case] => first-letter
                            [*] => Spezial
                            [canonical] => Special
                        )

                    [0] => Array
                        (
                            [id] => 0
                            [case] => first-letter
                            [*] => 
                            [content] => 
                        )

                    [1] => Array
                        (
                            [id] => 1
                            [case] => first-letter
                            [*] => Diskussion
                            [subpages] => 
                            [canonical] => Talk
                        )

                    [2] => Array
                        (
                            [id] => 2
                            [case] => first-letter
                            [*] => Kamel
                            [subpages] => 
                            [canonical] => User
                        )

                    [3] => Array
                        (
                            [id] => 3
                            [case] => first-letter
                            [*] => Kamel Diskussion
                            [subpages] => 
                            [canonical] => User talk
                        )

                    [4] => Array
                        (
                            [id] => 4
                            [case] => first-letter
                            [*] => Kamelopedia
                            [subpages] => 
                            [canonical] => Project
                        )

                    [5] => Array
                        (
                            [id] => 5
                            [case] => first-letter
                            [*] => Kamelopedia Diskussion
                            [subpages] => 
                            [canonical] => Project talk
                        )

                    [6] => Array
                        (
                            [id] => 6
                            [case] => first-letter
                            [*] => Datei
                            [canonical] => File
                        )

                    [7] => Array
                        (
                            [id] => 7
                            [case] => first-letter
                            [*] => Datei Diskussion
                            [subpages] => 
                            [canonical] => File talk
                        )

                    [8] => Array
                        (
                            [id] => 8
                            [case] => first-letter
                            [*] => MediaWiki
                            [subpages] => 
                            [canonical] => MediaWiki
                        )

                    [9] => Array
                        (
                            [id] => 9
                            [case] => first-letter
                            [*] => MediaWiki Diskussion
                            [subpages] => 
                            [canonical] => MediaWiki talk
                        )

                    [10] => Array
                        (
                            [id] => 10
                            [case] => first-letter
                            [*] => Vorlage
                            [canonical] => Template
                        )

                    [11] => Array
                        (
                            [id] => 11
                            [case] => first-letter
                            [*] => Vorlage Diskussion
                            [subpages] => 
                            [canonical] => Template talk
                        )

                    [12] => Array
                        (
                            [id] => 12
                            [case] => first-letter
                            [*] => Hilfe
                            [subpages] => 
                            [canonical] => Help
                        )

                    [13] => Array
                        (
                            [id] => 13
                            [case] => first-letter
                            [*] => Hilfe Diskussion
                            [subpages] => 
                            [canonical] => Help talk
                        )

                    [14] => Array
                        (
                            [id] => 14
                            [case] => first-letter
                            [*] => Kategorie
                            [canonical] => Category
                        )

                    [15] => Array
                        (
                            [id] => 15
                            [case] => first-letter
                            [*] => Kategorie Diskussion
                            [subpages] => 
                            [canonical] => Category talk
                        )

                    [100] => Array
                        (
                            [id] => 100
                            [case] => first-letter
                            [*] => Projekt
                            [canonical] => Projekt
                        )

                    [101] => Array
                        (
                            [id] => 101
                            [case] => first-letter
                            [*] => Projekt Diskussion
                            [canonical] => Projekt Diskussion
                        )

                    [102] => Array
                        (
                            [id] => 102
                            [case] => first-letter
                            [*] => Forum
                            [canonical] => Forum
                        )

                    [103] => Array
                        (
                            [id] => 103
                            [case] => first-letter
                            [*] => Forum Diskussion
                            [canonical] => Forum Diskussion
                        )

                    [104] => Array
                        (
                            [id] => 104
                            [case] => first-letter
                            [*] => Archiv
                            [canonical] => Archiv
                        )

                    [105] => Array
                        (
                            [id] => 105
                            [case] => first-letter
                            [*] => Archiv Diskussion
                            [canonical] => Archiv Diskussion
                        )

                    [106] => Array
                        (
                            [id] => 106
                            [case] => first-letter
                            [*] => Kamelionary
                            [canonical] => Kamelionary
                        )

                    [107] => Array
                        (
                            [id] => 107
                            [case] => first-letter
                            [*] => Kamelionary Diskussion
                            [canonical] => Kamelionary Diskussion
                        )

                    [108] => Array
                        (
                            [id] => 108
                            [case] => first-letter
                            [*] => News
                            [canonical] => News
                        )

                    [109] => Array
                        (
                            [id] => 109
                            [case] => first-letter
                            [*] => News Diskussion
                            [canonical] => News Diskussion
                        )

                    [110] => Array
                        (
                            [id] => 110
                            [case] => first-letter
                            [*] => Commons
                            [canonical] => Commons
                        )

                    [111] => Array
                        (
                            [id] => 111
                            [case] => first-letter
                            [*] => Commons Diskussion
                            [canonical] => Commons Diskussion
                        )

                    [112] => Array
                        (
                            [id] => 112
                            [case] => first-letter
                            [*] => Kamelobooks
                            [canonical] => Kamelobooks
                        )

                    [113] => Array
                        (
                            [id] => 113
                            [case] => first-letter
                            [*] => Kamelobooks Diskussion
                            [canonical] => Kamelobooks Diskussion
                        )

                    [114] => Array
                        (
                            [id] => 114
                            [case] => first-letter
                            [*] => Frage
                            [canonical] => Frage
                        )

                    [115] => Array
                        (
                            [id] => 115
                            [case] => first-letter
                            [*] => Frage Diskussion
                            [canonical] => Frage Diskussion
                        )

                    [116] => Array
                        (
                            [id] => 116
                            [case] => first-letter
                            [*] => Idee
                            [canonical] => Idee
                        )

                    [117] => Array
                        (
                            [id] => 117
                            [case] => first-letter
                            [*] => Idee Diskussion
                            [canonical] => Idee Diskussion
                        )

                    [192] => Array
                        (
                            [id] => 192
                            [case] => first-letter
                            [*] => Attribut
                            [canonical] => Attribut
                        )

                    [193] => Array
                        (
                            [id] => 193
                            [case] => first-letter
                            [*] => Attribut Diskussion
                            [subpages] => 
                            [canonical] => Attribut Diskussion
                        )

                    [194] => Array
                        (
                            [id] => 194
                            [case] => first-letter
                            [*] => Type
                            [canonical] => Type
                        )

                    [195] => Array
                        (
                            [id] => 195
                            [case] => first-letter
                            [*] => Type talk
                            [subpages] => 
                            [canonical] => Type talk
                        )

                    [196] => Array
                        (
                            [id] => 196
                            [case] => first-letter
                            [*] => Formular
                            [canonical] => Form
                        )

                    [197] => Array
                        (
                            [id] => 197
                            [case] => first-letter
                            [*] => Formular Diskussion
                            [subpages] => 
                            [canonical] => Form talk
                        )

                    [198] => Array
                        (
                            [id] => 198
                            [case] => first-letter
                            [*] => Konzept
                            [canonical] => Konzept
                        )

                    [199] => Array
                        (
                            [id] => 199
                            [case] => first-letter
                            [*] => Konzept Diskussion
                            [subpages] => 
                            [canonical] => Konzept Diskussion
                        )

                    [274] => Array
                        (
                            [id] => 274
                            [case] => first-letter
                            [*] => Widget
                            [canonical] => Widget
                        )

                    [275] => Array
                        (
                            [id] => 275
                            [case] => first-letter
                            [*] => Widget Diskussion
                            [subpages] => 
                            [canonical] => Widget talk
                        )

                )

        )

)