Erreur SQL !
SELECT * FROM flux_actu WHERE theme_src="politique" and id_flux_actu="556588$article=un-elu-du-rassemblement-national-provoque-un-tolle-en-demandant-a-une-femme-d-enlever-son-voile" UNION (SELECT * FROM flux_sport WHERE theme_src="politique" and id_flux_sport="556588$article=un-elu-du-rassemblement-national-provoque-un-tolle-en-demandant-a-une-femme-d-enlever-son-voile") UNION (SELECT * FROM flux_tech WHERE theme_src="politique" and id_flux_tech="556588$article=un-elu-du-rassemblement-national-provoque-un-tolle-en-demandant-a-une-femme-d-enlever-son-voile") UNION (SELECT * FROM flux_foot WHERE theme_src="politique" and id_flux_foot="556588$article=un-elu-du-rassemblement-national-provoque-un-tolle-en-demandant-a-une-femme-d-enlever-son-voile")