Erreur SQL !
SELECT * FROM flux_actu WHERE theme_src="france" and id_flux_actu="507887$article=une-lotoise-de-20-ans-decedee-apres-un-violent-choc-sur-la-route-en-correze" UNION (SELECT * FROM flux_sport WHERE theme_src="france" and id_flux_sport="507887$article=une-lotoise-de-20-ans-decedee-apres-un-violent-choc-sur-la-route-en-correze") UNION (SELECT * FROM flux_tech WHERE theme_src="france" and id_flux_tech="507887$article=une-lotoise-de-20-ans-decedee-apres-un-violent-choc-sur-la-route-en-correze") UNION (SELECT * FROM flux_foot WHERE theme_src="france" and id_flux_foot="507887$article=une-lotoise-de-20-ans-decedee-apres-un-violent-choc-sur-la-route-en-correze")