How to check each rows in PHP MySQL ? - php

Question

i have three row of data mysql database and create column timeout and timein . it's VARCHAR type
row 1 :
timeout : 0830 , timein : 1030
row 2 :
timeout : 1230 , timein : 1730
row 3 :
timeout : 1800 , timein : 1900
i want the code check each row in database before display an error "Duplicate" or adding the data into database table
But the problem is, it only read first row in query. second row and third row doesn't work
<?php
$connect = mysqli_connect("localhost", "root", "", "database");
global $connect;
if(isset($_POST['Submit'])){
$timeout = $_POST['timeout'];
$timein = $_POST['timein'];
$sql = "SELECT * FROM table";
$get = mysqli_query($connect, $sql);
$run = mysqli_fetch_array($get);
$timeout_new = $run['timeout'];
$timein_new = $run['timein'];
if(($timeout >= $timeout_new) && ($timeout <= $timein_new))
{
echo "Duplicate !";
}
else
{
$add = "INSERT INTO movement (timeout, timein)
VALUES ('$timeout', '$timein')";
$addDateTime = mysqli_query($connect,$add);
echo "Time added !";
}
}
?>
<form action="dd.php" method="post">
<table>
<tr>
<td><i class="fa fa-unlock-alt"></i> </td>
<td>Time out : </td>
<td><input type ="text" name="timeout" size="30"></td>
</tr>
<tr>
<td><i class="fa fa-unlock-alt"></i> </td>
<td>Time in : </td>
<td><input type ="text" name="timein" size="30"></td>
</tr>
</table>
<p><input class="btnSuccess" type ="submit" name="Submit" value="Submit"> </p>
</form>
Thanks.

Answer 1

I think this line is wrong, isn't it?
if(($timeout >= $timeout_new) && ($timeout <= $timein_new))
Shouldn't it be
if(($timeout >= $timeout_new) && ($timein <= $timein_new))

Answer 2

You can do the control in question
if(isset($_POST['Submit'])){
$timeout = $_POST['timeout'];
$timein = $_POST['timein'];
$sql = "SELECT * FROM table WHERE timeout >= '{$_POST['timeout']}' AND timeout <= '{$_POST['timein']}'";
$get = mysqli_query($connect, $sql);
if(mysql_num_rows($get))
{
echo "Duplicate !";
}
else
{
$add = "INSERT INTO movement (timeout, timein)
VALUES ('$timeout', '$timein')";
$addDateTime = mysqli_query($connect,$add);
echo "Time added !";
}
}

Answer 3

foreach( $run as $row )
{
$timeout_new = $row[ 'timeout' ];
$timein_new = $row[ 'timein' ];
if( ( $timeout >= $timeout_new ) && ( $timein <= $timein_new ) )
{
echo "Duplicate !";
}
else
{
$add = "INSERT INTO movement (timeout, timein) VALUES ('$timeout', '$timein')";
$addDateTime = mysqli_query($connect,$add);
echo "Time added !";
}
}
This is not tested so I can not say for sure it will work first time but it will give you an idea of what you need to look at. You are currently only looking at the first result. You need to loop through the results and check them.