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Alex Rivera
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I have index.php <select id="year_list" name="year_list" onchange="check_year_event('year_list', 'event_list');" > . . . </select> <select id="event_list" name="event_list" onchange="check_year_event('year_list', 'event_list');" > . . . </select> . . . <?php function checkYearandEvent($year, $event) { $year_event = mysql_query("SELECT * FROM year_event WHERE year = '$event' AND event = '$event'") if (mysql_num_rows($year_event) > 0) { // do this } } ?> myscripts.js function check_year_event(year_id, event_id) { var year = document.getElementById(year_id).value; var event = document.getElementById(event_id).value; // call PHP function (but I don't know how): checkYearandEvent(year, event); } My question is how do I call the PHP function every time the user changes the value of any of the select element.
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