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Trouble with (Next Page) * (Previous Page)

Discussion in 'PHP' started by LongshotMP, Apr 26, 2017.

0
  1. #1
    Hi everyone.

    I'm trying very hard to add some sort of pagination on my script, but it seems to be going horribly. I've been trying for hours, and although I feel I am close, it just seems to not be working so I thought I'd ask for help.
    SEMrush
    Without the pagination script I have inserted, there is a list of cars.
    When I add it, the list complete disappears.

    The row that I have inserted is abour 3/4 of the way down, starting with
    <?php
    //check if the starting row variable was passed in the URL or not
    if (!isset($_GET['startrow']) or !is_numeric($_GET['startrow'])) {

    Please help me!


    <?php include"mainmenu.php"; ?>
<?php
if ($_POST['sell'] && $_POST['car']){

$sell = $_POST['car'];
    foreach($sell as $checkboxid)
    {
        $sql="SELECT * from cars WHERE id='$checkboxid'";
$result=mysql_query($sql);
while($rows=mysql_fetch_array($result)){ // Start looping table row
$id= $rows['id'];
$cprice= $rows['price'];
$carname= $rows['name'];
}
mysql_query("DELETE FROM cars WHERE id='$checkboxid'");
mysql_query("UPDATE users SET `cash`=`cash`+'$cprice' WHERE username='$username'");
}
echo "You sold your car(s)!";   

}

?>

<?php
if ($_POST['rcar'] && $_POST['car']){

$rcar = $_POST['car'];
    foreach($rcar as $checkboxid)
    {
   
$sql="SELECT * from cars WHERE id='$checkboxid'";
$result=mysql_query($sql);

while($rows=mysql_fetch_array($result)){ // Start looping table row


$id= $rows['id'];
$carname= $rows['name'];

?>

<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=topleft NOWRAP>
</td>
<td class=leftbar NOWRAP>
</td>
<td class=bar NOWRAP>

</td>
<td class=rightbar NOWRAP>
</td>
<td class=topright NOWRAP>
</td>
</tr>
</tbody>
</table>
<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=left NOWRAP>
</td>
<td class=main>
<div align="left">

<?php echo "This car already has 0% damage!"; ?>


</div>
</td>
<td class=right NOWRAP>
</td>
</tr>
</Tbody>
</table>


<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=bottomleft NOWRAP>
</td>
<td class=bottom NOWRAP>
</td>
<td class=bottomright NOWRAP>
</td>
</tr>
</tbody>
</table>

<?php
}//loop
}//loop

}//if submit
?>

<?php

if ($_POST['drop'] && $_POST['car']){

$dcar = $_POST['car'];

    foreach($dcar as $dropcar)
    {
      mysql_query("DELETE FROM cars WHERE id='$dropcar' AND owner='$username'");

    }

echo "<b>Selected cars have been dropped!</b>";
}//if submit
?>


<?php

if ($_POST['rcar'] && $_POST['car']){

$rcar = $_POST['car'];

    foreach($rcar as $checkboxid)
    {
   
$sql="SELECT * from cars WHERE id='$checkboxid'";
$result=mysql_query($sql);

while($rows=mysql_fetch_array($result)){ // Start looping table row

$id= $rows['id'];
$damage= $rows['damage'];
$type= $rows['type'];

if($type=="1"){$carname = $car_1;}
if($type=="2"){$carname = $car_2;}
if($type=="3"){$carname = $car_3;}
if($type=="4"){$carname = $car_4;}
if($type=="5"){$carname = $car_5;}
if($type=="6"){$carname = $car_6;}
if($type=="7"){$carname = $car_7;}
if($type=="8"){$carname = $car_8;}
if($type=="9"){$carname = $car_9;}
if($type=="10"){$carname = $car_10;}
if($type=="11"){$carname = $car_11;}
if($type=="12"){$carname = $car_12;}
if($type=="13"){$carname = $car_13;}

if ($damage ==0){

?>

<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=topleft NOWRAP>
</td>
<td class=leftbar NOWRAP>
</td>
<td class=bar NOWRAP>

</td>
<td class=rightbar NOWRAP>
</td>
<td class=topright NOWRAP>
</td>
</tr>
</tbody>
</table>
<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=left NOWRAP>
</td>
<td class=main>
<div align="left">


<?php echo "This car allready has 0% damage!"; ?>

</div>
</td>
<td class=right NOWRAP>
</td>
</tr>
</Tbody>
</table>


<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=bottomleft NOWRAP>
</td>
<td class=bottom NOWRAP>
</td>
<td class=bottomright NOWRAP>
</td>
</tr>
</tbody>
</table>



   

<?php

}else{
$c = rand(9,110);

if($repaircar>=1){


mysql_query("UPDATE cars SET damage='0' WHERE id='$checkboxid' AND owner='$username'");
?>


<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=topleft NOWRAP>
</td>
<td class=leftbar NOWRAP>
</td>
<td class=bar NOWRAP>

</td>
<td class=rightbar NOWRAP>
</td>
<td class=topright NOWRAP>
</td>
</tr>
</tbody>
</table>
<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=left NOWRAP>
</td>
<td class=main>
<div align="left">


<?php echo "You successfully fixed your $carname with $damage% damage!"; ?>


</div>
</td>
<td class=right NOWRAP>
</td>
</tr>
</Tbody>
</table>


<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=bottomleft NOWRAP>
</td>
<td class=bottom NOWRAP>
</td>
<td class=bottomright NOWRAP>
</td>
</tr>
</tbody>
</table>



   
<?php
mysql_query("UPDATE users SET `repaircar`=`repaircar`-'1' WHERE username='$username'");

}else{

if ($c < $damage){

mysql_query("DELETE FROM cars WHERE id='$checkboxid'");

?>

<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=topleft NOWRAP>
</td>
<td class=leftbar NOWRAP>
</td>
<td class=bar NOWRAP>

</td>
<td class=rightbar NOWRAP>
</td>
<td class=topright NOWRAP>
</td>
</tr>
</tbody>
</table>
<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=left NOWRAP>
</td>
<td class=main>
<div align="left">

<?php echo "You failed to repair your $carname with $damage% damage."; ?>


</div>
</td>
<td class=right NOWRAP>
</td>
</tr>
</Tbody>
</table>


<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=bottomleft NOWRAP>
</td>
<td class=bottom NOWRAP>
</td>
<td class=bottomright NOWRAP>
</td>
</tr>
</tbody>
</table>


   

<?php


}else{

mysql_query("UPDATE cars SET damage='0' WHERE id='$checkboxid' AND owner='$username'");
?>

<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=topleft NOWRAP>
</td>
<td class=leftbar NOWRAP>
</td>
<td class=bar NOWRAP>

</td>
<td class=rightbar NOWRAP>
</td>
<td class=topright NOWRAP>
</td>
</tr>
</tbody>
</table>
<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=left NOWRAP>
</td>
<td class=main>
<div align="left">

<?php echo "You successfully fixed your $carname with $damage% damage!"; ?>


</div>
</td>
<td class=right NOWRAP>
</td>
</tr>
</Tbody>
</table>


<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=bottomleft NOWRAP>
</td>
<td class=bottom NOWRAP>
</td>
<td class=bottomright NOWRAP>
</td>
</tr>
</tbody>
</table>


   

<?php

}//fail else
}//damage not zero

}//repair car successfully
}//loop
}//loop



}//if submit
?>








<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=topleft NOWRAP>
</td>
<td class=leftbar NOWRAP>
</td>
<td class=bar NOWRAP>

</td>
<td class=rightbar NOWRAP>
</td>
<td class=topright NOWRAP>
</td>
</tr>
</tbody>
</table>
<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=left NOWRAP>
</td>
<td class=main>
<div align="center">

<script language="javascript">
checked = false;
      function checkAll () {
        if (checked == false){checked = true}else{checked = false}
    for (var i = 0; i < document.getElementById('crimes').elements.length; i++) {
      document.getElementById('crimes').elements[i].checked = checked;
    }
      }


</script>

 
  <?php       
//check if the starting row variable was passed in the URL or not
if (!isset($_GET['startrow']) or !is_numeric($_GET['startrow'])) {
  //we give the value of the starting row to 0 because nothing was found in URL
  $startrow = 0;
//otherwise we take the value from the URL
} else {
  $startrow = (int)$_GET['startrow'];
}
//this part goes after the checking of the $_GET var
$fetch = mysql_query("SELECT * FROM cars WHERE owner='".mysql_real_escape_string($username)."' ORDER BY type ASC LIMIT $startrow, 10")or
die(mysql_error());


while($row = mysql_fetch_array( $result )) {

$id = $row['id'];
$type = $row['type'];
$damage = $row['damage'];
$sale = $row['sale'];
$price = number_format($row['price']);

if($type=="1"){$carname = $car_1;}
if($type=="2"){$carname = $car_2;}
if($type=="3"){$carname = $car_3;}
if($type=="4"){$carname = $car_4;}
if($type=="5"){$carname = $car_5;}
if($type=="6"){$carname = $car_6;}
if($type=="7"){$carname = $car_7;}
if($type=="8"){$carname = $car_8;}
if($type=="9"){$carname = $car_9;}
if($type=="10"){$carname = $car_10;}
if($type=="11"){$carname = $car_11;}
if($type=="12"){$carname = $car_12;}
if($type=="13"){$carname = $car_13;}

   $num=Mysql_num_rows($fetch);
        if($num>0)
        {
        echo "<table>";
        echo "<tr><td>Car name</td><td>Car damage</div></td><td>Repair chance</td><td>Price</td></tr>";
        for($i=0;$i<$num;$i++)
        {

        $row=mysql_fetch_row($fetch);    
        ?>


<tr>
<td class="header" colspan="4">
<div align="center" class="unnamed1">Cars</div>
</td>
</tr>


<form action='' id=crimes method='post'>


            

<tr>           

<td width="40%" height="6" align="left" bgcolor="<?php echo "$tabcolor"; ?>" class="tabA">
<label for="<?php echo $row['id']; ?>">
<input name="car[]" type="checkbox" value="<? echo $id; ?>">
<a href="viewcar.php?carid=<? echo $id; ?>"><?php echo $carname; ?></a>
</label>
</td>

<td width="20%" height="6" align="left" bgcolor="<?php echo "$tabcolor"; ?>" class="tabA"><label>
<?php echo $row['damage']."%"; ?>
</label>
</td>


<td width="20%" height="6" align="left" bgcolor="<?php echo "$tabcolor"; ?>" class="tabA"><label>
<?php
if ($damage==0){ echo "100"; }else{echo 100-$damage;}
?>
%</label>
</td>

<td width="20%" hight="6" align="left" bgcolor="<?php echo "$tabcolor"; ?>" class="tabA"><label>
$ <?php
echo $price;
?>
</label>
</td>

       
</tr>

   <?php }// while loop ?>


<?PHP      
        }//for
        echo"</table>";
        }
//now this is the link..
echo '<div class="pagination"><ul><li class="next"><a href="'.$_SERVER['PHP_SELF'].'?startrow='.($startrow+10).'">Next</a></li>';

$prev = $startrow - 10;

//only print a "Previous" link if a "Next" was clicked
if ($prev >= 0)
    echo '<li class="prev"><a href="'.$_SERVER['PHP_SELF'].'?startrow='.$prev.'">Previous</a></li></ul></div>';
?>

<input type='submit' name='rcar' class='tbox' value='Repair Cars'>

<input type='submit' name='sell' class='tbox' value='Sell Cars'>

</center>
</form>




</div>
</td>
<td class=right NOWRAP>
</td>
</tr>
</Tbody>
</table>


<table cellSpacing=0 cellPadding=0 style="WIDTH: 100%">
<Tbody>
<tr>
<td class=bottomleft NOWRAP>
</td>
<td class=bottom NOWRAP>
</td>
<td class=bottomright NOWRAP>
</td>
</tr>
</tbody>
</table>
<br>
<br>


<?php include"rightside.php"; ?>
    PHP:
     
    LongshotMP, Apr 26, 2017 IP
    SEMrush
  2. davcheong

    davcheong Well-Known Member

    Messages:
    1,148
    Likes Received:
    51
    Best Answers:
    0
    Trophy Points:
    155
    #2
    Hi,

    The problems might be link to this :
    1. $username where or when user press link next it will be navigating to another page and it is not consider post to another page, unless the $username were actually store at the back memory such as session or cookies.
     
    Last edited: Jun 14, 2017
    davcheong, Jun 14, 2017 IP