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:30:{i:-2;a:4:{s:2:"id";i:-2;s:4:"case";s:12:"first-letter";s:1:"*";s:6:"Média";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:8:"Spécial";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:10:"Discussion";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:11:"Utilisateur";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:22:"Discussion utilisateur";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:18:"Projetgentilsvirus";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:29:"Discussion Projetgentilsvirus";s:8:"subpages";s:0:"";s:9:"canonical";s:12:"Project talk";}i:6;a:5:{s:2:"id";i:6;s:4:"case";s:12:"first-letter";s:1:"*";s:7:"Fichier";s:8:"subpages";s:0:"";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:18:"Discussion fichier";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:20:"Discussion MediaWiki";s:8:"subpages";s:0:"";s:9:"canonical";s:14:"MediaWiki talk";}i:10;a:5:{s:2:"id";i:10;s:4:"case";s:12:"first-letter";s:1:"*";s:7:"Modèle";s:8:"subpages";s:0:"";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:18:"Discussion modèle";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:"Aide";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:15:"Discussion aide";s:8:"subpages";s:0:"";s:9:"canonical";s:9:"Help talk";}i:14;a:5:{s:2:"id";i:14;s:4:"case";s:12:"first-letter";s:1:"*";s:10:"Catégorie";s:8:"subpages";s:0:"";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:21:"Discussion catégorie";s:8:"subpages";s:0:"";s:9:"canonical";s:13:"Category talk";}i:90;a:5:{s:2:"id";i:90;s:4:"case";s:12:"first-letter";s:1:"*";s:6:"Thread";s:8:"subpages";s:0:"";s:9:"canonical";s:6:"Thread";}i:91;a:5:{s:2:"id";i:91;s:4:"case";s:12:"first-letter";s:1:"*";s:11:"Thread talk";s:8:"subpages";s:0:"";s:9:"canonical";s:11:"Thread talk";}i:92;a:5:{s:2:"id";i:92;s:4:"case";s:12:"first-letter";s:1:"*";s:7:"Summary";s:8:"subpages";s:0:"";s:9:"canonical";s:7:"Summary";}i:93;a:5:{s:2:"id";i:93;s:4:"case";s:12:"first-letter";s:1:"*";s:12:"Summary talk";s:8:"subpages";s:0:"";s:9:"canonical";s:12:"Summary talk";}i:102;a:5:{s:2:"id";i:102;s:4:"case";s:12:"first-letter";s:1:"*";s:8:"Attribut";s:8:"subpages";s:0:"";s:9:"canonical";s:8:"Attribut";}i:103;a:5:{s:2:"id";i:103;s:4:"case";s:12:"first-letter";s:1:"*";s:19:"Discussion attribut";s:8:"subpages";s:0:"";s:9:"canonical";s:19:"Discussion attribut";}i:106;a:5:{s:2:"id";i:106;s:4:"case";s:12:"first-letter";s:1:"*";s:10:"Formulaire";s:8:"subpages";s:0:"";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:21:"Discussion formulaire";s:8:"subpages";s:0:"";s:9:"canonical";s:9:"Form talk";}i:108;a:5:{s:2:"id";i:108;s:4:"case";s:12:"first-letter";s:1:"*";s:7:"Concept";s:8:"subpages";s:0:"";s:9:"canonical";s:7:"Concept";}i:109;a:5:{s:2:"id";i:109;s:4:"case";s:12:"first-letter";s:1:"*";s:18:"Discussion concept";s:8:"subpages";s:0:"";s:9:"canonical";s:18:"Discussion concept";}i:274;a:5:{s:2:"id";i:274;s:4:"case";s:12:"first-letter";s:1:"*";s:6:"Widget";s:8:"subpages";s:0:"";s:9:"canonical";s:6:"Widget";}i:275;a:5:{s:2:"id";i:275;s:4:"case";s:12:"first-letter";s:1:"*";s:11:"Widget talk";s:8:"subpages";s:0:"";s:9:"canonical";s:11:"Widget talk";}}}}