This paper presents a system utilizing PHP open source scripting language to create dynamic web pages that communicate interactively with existing databases, held in reserve in Educational Institutions, regarding student’s registration for individual courses at any current semester. The student’s application is evaluated on line, according to given complex restrictions regarding previously passed courses, pre-requisites to subject-clusters, total allowed registration hours and separation in the direction of studies in case of multiple directions courses. Furthermore the student can write any comments in free text concerning his records. The proposed system is simple, easily configurable and highly secure.