I have built a simple html form that has input boxs and text areas, which are then inserted into a mysql database with the help of php script. Not all the fields have to be filling in and l want to be able to search the database for NULL fields. My problem is that when the form submits, even entries that have no information are having something inserted like an empty space which means l then can't search the DB for NULL fields as returns everything.
This is the php script that sends the MYSQL insert query to the DB
<?php
/*Av Tech Name*/
$techNam = $_POST['techNam'];
/* Building */
$building = $_POST['building'];
/* Room */
$roomNum = $_POST['roomNum'];
/* Day */
$day = $_POST['day'];
/*Month*/
$month = $_POST['month'];
/*Projector Power */
$projPower = $_POST['projPower'];
/* Screen decends and retracts */
$screenUpDown = $_POST['screenUpDown'];
/* Power to buton control */
$controlPower = $_POST['controlPower'];
/* Lamp working */
$projLamp = $_POST['projLamp'];
/* Rips and tears to the screen */
$rips = $_POST['rips'];
/* Control Functions */
$controlFunctions = $_POST['controlFunctions'];
/* Projector image */
$projImage = $_POST['projImage'];
/* Screen Notes */
$screenNotes = $_POST['screenNotes'];
/* Control Notes */
$controlNotes = $_POST['controlNotes'];
/* Monitor power */
$monitorPower = $_POST['monitorPower'];
/* Network connection */
$networkConnect = $_POST['networkConnect'];
/* PC Power */
$pcPower = $_POST['pcPower'];
/* PC image */
$pcImage = $_POST['pcImage'];
/* PC audio */
$pcAudio = $_POST['pcAudio'];
/* PC DVD playback */
$pcDvd = $_POST['pcDvd'];
/* BluRay Player power */
$BluRayPower = $_POST['BluRayPower'];
/* Laptop VGA connection */
$laptopVga = $_POST['laptopVga'];
/* Visualiser Power */
$visPower = $_POST['visPower'];
/* bluRay Play back */
$BluRayPlay = $_POST['BluRayPlay'];
/* Laptop audio */
$laptopAudio = $_POST['laptopAudio'];
/* Visualiaser lamp */
$visLamp = $_POST['visLamp'];
/* BluRay Audio */
$BluRayAudio = $_POST['BluRayAudio'];
/* laptop HDMI */
$laptopHdmi = $_POST['laptopHdmi'];
/* Visualiser image */
$visImage = $_POST['visImage'];
/* Laptop Network Connection */
$laptopNetwork = $_POST['laptopNetwork'];
/* Visualiser automatic and manual zoom */
$visZoom = $_POST['visZoom'];
/* Lectern mic working */
$micLec = $_POST['micLec'];
/* Video conference power */
$vcPower = $_POST['vcPower'];
/* Condition of lectern Condition */
$lecternCondition = $_POST['lecternCondition'];
/* Radio mics working */
$audioRadioMics = $_POST['audioRadioMics'];
/* VC unit dials and connects */
$vcConnect = $_POST['vcConnect'];
/* General condition of cables Good */
$cableCondition = $_POST['cableCondition'];
/* Visualiser audio */
$vcAudio = $_POST['vcAudio'];
/* Condition of wall connections */
$wall = $_POST['wall'];
/* Visualiser laptop connection */
$vcLaptop = $_POST['vcLaptop'];
/* White board condition */
$whiteB = $_POST['whiteB'];
/* Video conference notes */
$vcNotes = $_POST['vcNotes'];
$sql = "INSERT INTO avChecklist (techNam, building, roomNum, day, month,
projPower, screenUpDown, controlPower, projLamp, rips, controlFunctions,
projImage, screenNotes, controlNotes, monitorPower, networkConnect,
pcPower, pcImage, pcAudio, pcDvd, BluRayPower, laptopVga, visPower,
BluRayPlay, laptopAudio, visLamp, BluRayAudio, laptopHdmi, visImage,
laptopNetwork, visZoom, micLec, vcPower, lecternCondition,
audioRadioMics, vcConnect, cableCondition, vcAudio, wall, vcLaptop,
whiteB, vcNotes) VALUES ('$techNam', '$building', '$roomNum', '$day',
'$month', '$projPower', '$screenUpDown', '$controlPower', '$projLamp',
'$rips', '$controlFunctions', '$projImage', '$screenNotes',
'$controlNotes', '$monitorPower', '$networkConnect', '$pcPower',
'$pcImage', '$pcAudio', '$pcDvd', '$BluRayPower', '$laptopVga',
'$visPower', '$BluRayPlay', '$laptopAudio', '$visLamp', '$BluRayAudio',
'$laptopHdmi', '$visImage', '$laptopNetwork', '$visZoom', '$micLec',
'$vcPower', '$lecternCondition', '$audioRadioMics', '$vcConnect',
'$cableCondition', '$vcAudio', '$wall', '$vcLaptop', '$whiteB',
'$vcNotes')";
if (!mysql_query($sql)) {
die('Error: ' . mysql_error());
}
echo 'Thanks '. $techNam .' your completed maintenance check for room '.
$roomNum .' has been added to the database.';
echo "<br /><br /><br />";
echo 'This page will redirect in 5 seconds';
mysql_close();
?>
Table Structure
Database a9404870_heAv
Table structure for table avChecklist
Field Type Null Default
submitDate timestamp Yes CURRENT_TIMESTAMP
techNam varchar(255) Yes NULL
building varchar(255) Yes NULL
roomNum varchar(255) Yes NULL
day varchar(255) Yes NULL
month varchar(255) Yes NULL
projPower varchar(255) Yes NULL
screenUpDown varchar(255) Yes NULL
controlPower varchar(255) Yes NULL
projLamp varchar(255) Yes NULL
rips varchar(255) Yes NULL
controlFunctions varchar(255) Yes NULL
projImage varchar(255) Yes NULL
screenNotes varchar(255) Yes NULL
controlNotes varchar(255) Yes NULL
monitorPower varchar(255) Yes NULL
networkConnect varchar(255) Yes NULL
pcPower varchar(255) Yes NULL
pcImage varchar(255) Yes NULL
pcAudio varchar(255) Yes NULL
pcDvd varchar(255) Yes NULL
BluRayPower varchar(255) Yes NULL
laptopVga varchar(255) Yes NULL
visPower varchar(255) Yes NULL
BluRayPlay varchar(255) Yes NULL
laptopAudio varchar(255) Yes NULL
visLamp varchar(255) Yes NULL
BluRayAudio varchar(255) Yes NULL
laptopHdmi varchar(255) Yes NULL
visImage varchar(255) Yes NULL
laptopNetwork varchar(255) Yes NULL
visZoom varchar(255) Yes NULL
micLec varchar(255) Yes NULL
vcPower varchar(255) Yes NULL
lecternCondition varchar(255) Yes NULL
audioRadioMics varchar(255) Yes NULL
vcConnect varchar(255) Yes NULL
cableCondition varchar(255) Yes NULL
vcAudio varchar(255) Yes NULL
wall varchar(255) Yes NULL
vcLaptop varchar(255) Yes NULL
whiteB varchar(255) Yes NULL
vcNotes varchar(255) Yes NULL
mysql_*functions. These extensions have been removed in PHP 7. Learn about prepared statements for PDO and MySQLi and consider using PDO, it's really pretty easy.