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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
                            [*] => Media
                            [canonical] => Media
                        )

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

                    [100] => Array
                        (
                            [id] => 100
                            [case] => first-letter
                            [*] => Mission
                            [subpages] => 
                            [canonical] => Mission
                            [content] => 
                        )

                    [101] => Array
                        (
                            [id] => 101
                            [case] => first-letter
                            [*] => Mission talk
                            [subpages] => 
                            [canonical] => Mission talk
                        )

                    [102] => Array
                        (
                            [id] => 102
                            [case] => first-letter
                            [*] => Teleporter
                            [subpages] => 
                            [canonical] => Teleporter
                            [content] => 
                        )

                    [103] => Array
                        (
                            [id] => 103
                            [case] => first-letter
                            [*] => Teleporter talk
                            [subpages] => 
                            [canonical] => Teleporter talk
                        )

                    [104] => Array
                        (
                            [id] => 104
                            [case] => first-letter
                            [*] => Event
                            [subpages] => 
                            [canonical] => Event
                            [content] => 
                        )

                    [105] => Array
                        (
                            [id] => 105
                            [case] => first-letter
                            [*] => Event talk
                            [subpages] => 
                            [canonical] => Event talk
                        )

                    [106] => Array
                        (
                            [id] => 106
                            [case] => first-letter
                            [*] => Item
                            [subpages] => 
                            [canonical] => Item
                            [content] => 
                        )

                    [107] => Array
                        (
                            [id] => 107
                            [case] => first-letter
                            [*] => Item talk
                            [subpages] => 
                            [canonical] => Item talk
                        )

                    [110] => Array
                        (
                            [id] => 110
                            [case] => first-letter
                            [*] => Weapon
                            [subpages] => 
                            [canonical] => Weapon
                            [content] => 
                        )

                    [111] => Array
                        (
                            [id] => 111
                            [case] => first-letter
                            [*] => Weapon talk
                            [subpages] => 
                            [canonical] => Weapon talk
                        )

                    [112] => Array
                        (
                            [id] => 112
                            [case] => first-letter
                            [*] => Armor
                            [subpages] => 
                            [canonical] => Armor
                            [content] => 
                        )

                    [113] => Array
                        (
                            [id] => 113
                            [case] => first-letter
                            [*] => Armor talk
                            [subpages] => 
                            [canonical] => Armor talk
                        )

                    [116] => Array
                        (
                            [id] => 116
                            [case] => first-letter
                            [*] => Skill
                            [subpages] => 
                            [canonical] => Skill
                            [content] => 
                        )

                    [117] => Array
                        (
                            [id] => 117
                            [case] => first-letter
                            [*] => Skill talk
                            [subpages] => 
                            [canonical] => Skill talk
                        )

                    [118] => Array
                        (
                            [id] => 118
                            [case] => first-letter
                            [*] => Creature
                            [subpages] => 
                            [canonical] => Creature
                            [content] => 
                        )

                    [119] => Array
                        (
                            [id] => 119
                            [case] => first-letter
                            [*] => Creature talk
                            [subpages] => 
                            [canonical] => Creature talk
                        )

                    [120] => Array
                        (
                            [id] => 120
                            [case] => first-letter
                            [*] => Portal
                            [subpages] => 
                            [canonical] => Portal
                            [content] => 
                        )

                    [121] => Array
                        (
                            [id] => 121
                            [case] => first-letter
                            [*] => Portal talk
                            [subpages] => 
                            [canonical] => Portal talk
                        )

                    [126] => Array
                        (
                            [id] => 126
                            [case] => first-letter
                            [*] => Avatar
                            [subpages] => 
                            [canonical] => Avatar
                            [content] => 
                        )

                    [127] => Array
                        (
                            [id] => 127
                            [case] => first-letter
                            [*] => Avatar talk
                            [subpages] => 
                            [canonical] => Avatar talk
                        )

                    [128] => Array
                        (
                            [id] => 128
                            [case] => first-letter
                            [*] => Society
                            [subpages] => 
                            [canonical] => Society
                            [content] => 
                        )

                    [129] => Array
                        (
                            [id] => 129
                            [case] => first-letter
                            [*] => Society talk
                            [subpages] => 
                            [canonical] => Society talk
                        )

                    [134] => Array
                        (
                            [id] => 134
                            [case] => first-letter
                            [*] => News
                            [subpages] => 
                            [canonical] => News
                            [content] => 
                        )

                    [135] => Array
                        (
                            [id] => 135
                            [case] => first-letter
                            [*] => News talk
                            [subpages] => 
                            [canonical] => News talk
                        )

                    [136] => Array
                        (
                            [id] => 136
                            [case] => first-letter
                            [*] => Achievement
                            [subpages] => 
                            [canonical] => Achievement
                            [content] => 
                        )

                    [137] => Array
                        (
                            [id] => 137
                            [case] => first-letter
                            [*] => Achievement talk
                            [subpages] => 
                            [canonical] => Achievement talk
                        )

                    [140] => Array
                        (
                            [id] => 140
                            [case] => first-letter
                            [*] => Property
                            [subpages] => 
                            [canonical] => Property
                        )

                    [141] => Array
                        (
                            [id] => 141
                            [case] => first-letter
                            [*] => Property talk
                            [subpages] => 
                            [canonical] => Property talk
                        )

                    [142] => Array
                        (
                            [id] => 142
                            [case] => first-letter
                            [*] => Type
                            [subpages] => 
                            [canonical] => Type
                        )

                    [143] => Array
                        (
                            [id] => 143
                            [case] => first-letter
                            [*] => Type talk
                            [subpages] => 
                            [canonical] => Type talk
                        )

                    [144] => Array
                        (
                            [id] => 144
                            [case] => first-letter
                            [*] => Form
                            [subpages] => 
                            [canonical] => Form
                        )

                    [145] => Array
                        (
                            [id] => 145
                            [case] => first-letter
                            [*] => Form talk
                            [subpages] => 
                            [canonical] => Form talk
                        )

                    [146] => Array
                        (
                            [id] => 146
                            [case] => first-letter
                            [*] => Concept
                            [subpages] => 
                            [canonical] => Concept
                        )

                    [147] => Array
                        (
                            [id] => 147
                            [case] => first-letter
                            [*] => Concept talk
                            [subpages] => 
                            [canonical] => Concept talk
                        )

                    [170] => Array
                        (
                            [id] => 170
                            [case] => first-letter
                            [*] => Filter
                            [subpages] => 
                            [canonical] => Filter
                        )

                    [171] => Array
                        (
                            [id] => 171
                            [case] => first-letter
                            [*] => Filter talk
                            [subpages] => 
                            [canonical] => Filter talk
                        )

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

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

                    [420] => Array
                        (
                            [id] => 420
                            [case] => first-letter
                            [*] => Layer
                            [canonical] => Layer
                        )

                    [421] => Array
                        (
                            [id] => 421
                            [case] => first-letter
                            [*] => Layer talk
                            [canonical] => Layer talk
                        )

                )

        )

)