You are looking at the HTML representation of the PHP format.
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 PHP format, set format=php.
See the complete documentation, or
API help for more information.
a:1:{s:5:"query";a:1:{s:10:"namespaces";a:32:{i:-2;a:4:{s:2:"id";i:-2;s:4:"case";s:12:"first-letter";s:1:"*";s:5:"Media";s:9:"canonical";s:5:"Media";}i:-1;a:4:{s:2:"id";i:-1;s:4:"case";s:12:"first-letter";s:1:"*";s:7:"Special";s:9:"canonical";s:7:"Special";}i:0;a:5:{s:2:"id";i:0;s:4:"case";s:12:"first-letter";s:1:"*";s:0:"";s:8:"subpages";s:0:"";s:7:"content";s:0:"";}i:1;a:5:{s:2:"id";i:1;s:4:"case";s:12:"first-letter";s:1:"*";s:4:"Talk";s:8:"subpages";s:0:"";s:9:"canonical";s:4:"Talk";}i:2;a:5:{s:2:"id";i:2;s:4:"case";s:12:"first-letter";s:1:"*";s:4:"User";s:8:"subpages";s:0:"";s:9:"canonical";s:4:"User";}i:3;a:5:{s:2:"id";i:3;s:4:"case";s:12:"first-letter";s:1:"*";s:9:"User talk";s:8:"subpages";s:0:"";s:9:"canonical";s:9:"User talk";}i:4;a:5:{s:2:"id";i:4;s:4:"case";s:12:"first-letter";s:1:"*";s:36:"Guifi - Media-pool Common Repository";s:8:"subpages";s:0:"";s:9:"canonical";s:7:"Project";}i:5;a:5:{s:2:"id";i:5;s:4:"case";s:12:"first-letter";s:1:"*";s:41:"Guifi - Media-pool Common Repository talk";s:8:"subpages";s:0:"";s:9:"canonical";s:12:"Project talk";}i:6;a:4:{s:2:"id";i:6;s:4:"case";s:12:"first-letter";s:1:"*";s:4:"File";s:9:"canonical";s:4:"File";}i:7;a:5:{s:2:"id";i:7;s:4:"case";s:12:"first-letter";s:1:"*";s:9:"File talk";s:8:"subpages";s:0:"";s:9:"canonical";s:9:"File talk";}i:8;a:5:{s:2:"id";i:8;s:4:"case";s:12:"first-letter";s:1:"*";s:9:"MediaWiki";s:8:"subpages";s:0:"";s:9:"canonical";s:9:"MediaWiki";}i:9;a:5:{s:2:"id";i:9;s:4:"case";s:12:"first-letter";s:1:"*";s:14:"MediaWiki talk";s:8:"subpages";s:0:"";s:9:"canonical";s:14:"MediaWiki talk";}i:10;a:4:{s:2:"id";i:10;s:4:"case";s:12:"first-letter";s:1:"*";s:8:"Template";s:9:"canonical";s:8:"Template";}i:11;a:5:{s:2:"id";i:11;s:4:"case";s:12:"first-letter";s:1:"*";s:13:"Template talk";s:8:"subpages";s:0:"";s:9:"canonical";s:13:"Template talk";}i:12;a:5:{s:2:"id";i:12;s:4:"case";s:12:"first-letter";s:1:"*";s:4:"Help";s:8:"subpages";s:0:"";s:9:"canonical";s:4:"Help";}i:13;a:5:{s:2:"id";i:13;s:4:"case";s:12:"first-letter";s:1:"*";s:9:"Help talk";s:8:"subpages";s:0:"";s:9:"canonical";s:9:"Help talk";}i:14;a:4:{s:2:"id";i:14;s:4:"case";s:12:"first-letter";s:1:"*";s:8:"Category";s:9:"canonical";s:8:"Category";}i:15;a:5:{s:2:"id";i:15;s:4:"case";s:12:"first-letter";s:1:"*";s:13:"Category talk";s:8:"subpages";s:0:"";s:9:"canonical";s:13:"Category talk";}i:90;a:4:{s:2:"id";i:90;s:4:"case";s:12:"first-letter";s:1:"*";s:6:"Thread";s:9:"canonical";s:6:"Thread";}i:91;a:4:{s:2:"id";i:91;s:4:"case";s:12:"first-letter";s:1:"*";s:11:"Thread talk";s:9:"canonical";s:11:"Thread talk";}i:92;a:4:{s:2:"id";i:92;s:4:"case";s:12:"first-letter";s:1:"*";s:7:"Summary";s:9:"canonical";s:7:"Summary";}i:93;a:4:{s:2:"id";i:93;s:4:"case";s:12:"first-letter";s:1:"*";s:12:"Summary talk";s:9:"canonical";s:12:"Summary talk";}i:102;a:4:{s:2:"id";i:102;s:4:"case";s:12:"first-letter";s:1:"*";s:8:"Property";s:9:"canonical";s:8:"Property";}i:103;a:5:{s:2:"id";i:103;s:4:"case";s:12:"first-letter";s:1:"*";s:13:"Property talk";s:8:"subpages";s:0:"";s:9:"canonical";s:13:"Property talk";}i:106;a:4:{s:2:"id";i:106;s:4:"case";s:12:"first-letter";s:1:"*";s:4:"Form";s:9:"canonical";s:4:"Form";}i:107;a:5:{s:2:"id";i:107;s:4:"case";s:12:"first-letter";s:1:"*";s:9:"Form talk";s:8:"subpages";s:0:"";s:9:"canonical";s:9:"Form talk";}i:108;a:4:{s:2:"id";i:108;s:4:"case";s:12:"first-letter";s:1:"*";s:7:"Concept";s:9:"canonical";s:7:"Concept";}i:109;a:4:{s:2:"id";i:109;s:4:"case";s:12:"first-letter";s:1:"*";s:12:"Concept talk";s:9:"canonical";s:12:"Concept talk";}i:170;a:4:{s:2:"id";i:170;s:4:"case";s:12:"first-letter";s:1:"*";s:6:"Filter";s:9:"canonical";s:6:"Filter";}i:171;a:5:{s:2:"id";i:171;s:4:"case";s:12:"first-letter";s:1:"*";s:11:"Filter talk";s:8:"subpages";s:0:"";s:9:"canonical";s:11:"Filter talk";}i:1198;a:5:{s:2:"id";i:1198;s:4:"case";s:12:"first-letter";s:1:"*";s:12:"Translations";s:8:"subpages";s:0:"";s:9:"canonical";s:12:"Translations";}i:1199;a:5:{s:2:"id";i:1199;s:4:"case";s:12:"first-letter";s:1:"*";s:17:"Translations talk";s:8:"subpages";s:0:"";s:9:"canonical";s:17:"Translations talk";}}}}