Erreur SQL !
SELECT * FROM flux_actu WHERE theme_src="france" and id_flux_actu="541739$article=handicap-familles-et-associations-restent-sceptiques-face-aux-annonces" UNION (SELECT * FROM flux_sport WHERE theme_src="france" and id_flux_sport="541739$article=handicap-familles-et-associations-restent-sceptiques-face-aux-annonces") UNION (SELECT * FROM flux_tech WHERE theme_src="france" and id_flux_tech="541739$article=handicap-familles-et-associations-restent-sceptiques-face-aux-annonces") UNION (SELECT * FROM flux_foot WHERE theme_src="france" and id_flux_foot="541739$article=handicap-familles-et-associations-restent-sceptiques-face-aux-annonces")