Chris Val Kef Posted November 16, 2006 Share Posted November 16, 2006 i want to check if a checkbox was checked or not. if (isset($_POST["check"]["$cnt"] works fine but it seems that elseif (!isset($_POST["check"]["$cnt"])) is being skipped.i use this in the form <input type="checkbox" name="check[]" value="id">does anyone knows if the check[] table POSTs only the checked checkboxes?any ideas to check the unchecked checkboxes? ;) Link to comment https://forums.phpfreaks.com/topic/27512-isset_postcheckcnt/ Share on other sites More sharing options...
roopurt18 Posted November 16, 2006 Share Posted November 16, 2006 Only checked boxes will appear in $_POST, unchecked boxes will not.If you want to determine if the box was checked:if(isset($_POST['check_name'])){ // checked}else{ // unchecked} Link to comment https://forums.phpfreaks.com/topic/27512-isset_postcheckcnt/#findComment-125825 Share on other sites More sharing options...
Chris Val Kef Posted November 17, 2006 Author Share Posted November 17, 2006 <?phpsession_start();include '../config.php';$con = mysql_connect($dbServer,$dbUser,$dbPass) or exit("Error Connecting to Database");$sqlSTUDENT = "SELECT id FROM students WHERE user_id = '".$_SESSION["user_id"]."' ";$resSTUDENT = mysql_db_query ("elearning",$sqlSTUDENT);$resultSTUDENT = mysql_fetch_array ($resSTUDENT);for ($cnt=0; $cnt<count($_POST["check"]); $cnt++){ if ( isset($_POST["check"]["$cnt"]) ) { $sqlREGISTERED = "SELECT id FROM student_attends_class WHERE student_id = '".$resultSTUDENT["id"]."' AND class_id = '".$_POST["check"]["$cnt"]."' AND active = 1 "; $resREGISTERED = mysql_db_query ("elearning", $sqlREGISTERED); //$resultREGISTERED = mysql_fetch_array ($resREGISTERED); if ( mysql_num_rows ($resREGISTERED) == 0 ) { $sqlSEMESTER = "SELECT semester FROM classes WHERE id = '".$_POST["check"]["$cnt"]."' "; $resSEMESTER = mysql_db_query ("elearning",$sqlSEMESTER); $resultSEMESTER = mysql_fetch_array ($resSEMESTER); $sqlREQUEST = "INSERT INTO student_attends_class VALUES ( '', '".$_POST["check"]["$cnt"]."', '".$resultSTUDENT["id"]."', '0', '".$resultSEMESTER["semester"]."' )"; $resREQUEST = mysql_db_query ("elearning", $sqlREQUEST); } } else { $sqlREGISTERED = "SELECT id FROM student_attends_class WHERE student_id = '".$resultSTUDENT["id"]."' AND class_id = '".$_POST["check"]["$cnt"]."' AND active = 1 "; $resREGISTERED = mysql_db_query ("elearning", $sqlREGISTERED); $resultREGISTERED = mysql_fetch_array ($resREGISTERED); if ( mysql_num_rows ($resREGISTERED) == 1) { $sqlUNREGISTER = "DELETE FROM student_attends_class WHERE id = '".$resultREGISTERED["id"]."' "; $resUNREGISTER = mysql_db_query ("elearning", $sqlUNREGISTER); } }}header ('Location: main.php?message=updated_lessons');}?>this is my code! it seems fine to me but when i submit i get a white screen... after some tries i found that it doesn't like the outer if...else Link to comment https://forums.phpfreaks.com/topic/27512-isset_postcheckcnt/#findComment-126059 Share on other sites More sharing options...
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