我想加上金额 + 服务费 + 更换费用 + 块费 + 其他费用
但它不起作用请帮我解决这个问题谢谢
$sql="SELECT CONCAT(monthdate,' ','(',drivernamefuel,')') as drivernamefuel,sum(amount) + 'servicecharges' + 'replacecharges' + 'blockcharges' + 'othercharges' AS amount,drivernamefuel FROM $tablename where carno='$c' AND monthdate BETWEEN '$a' AND '$b' GROUP BY monthdate";
请参阅 ScreenShort 文件 #1:http ://www.koolfree.com/ImageUpload/uploads/1381252318.jpg
文件#2:http ://www.koolfree.com/ImageUpload/uploads/1381228480.jpg
它显示这些错误警告:在第 51 行的 indexssds.php 中除以零
警告:mysql_fetch_array():提供的参数不是第 73 行 indexssds.php 中的有效 MySQL 结果资源
这是完整的代码,请检查我的更新谢谢............
<?php
include 'config.php';
$link=mysql_connect("$hostname","$username","$password")or
die('Could not connect: ' . mysql_error());
mysql_select_db("$dbname",$link);
function formatMoney($number, $fractional=false) {
if ($fractional) {
$number = sprintf('%.2f', $number);
}
while (true) {
$replaced = preg_replace('/(-?\d+)(\d\d\d)/', '$1,$2', $number);
if ($replaced != $number) {
$number = $replaced;
} else {
break;
}
}
return $number;
}
$a=$_POST['from'];
$b=$_POST['to'];
$c=$_POST['to2'];
echo " <p align='center' class='style1'>Vehicle No: $c </p>";
echo "<span align='center' class='style1'>Report For The Period Of $a to $b </span>";
include 'create.php';
$sql="SELECT CONCAT(monthdate,' ','(',drivernamefuel,')') as drivernamefuel,
SUM(ifnull(amount,0) +
ifnull(servicecharges,0) +
ifnull(replacecharges,0) +
ifnull(blockcharges,0) +
ifnull(othercharges,0) ) AS amount,
drivernamefuel
FROM $tablename where carno='$c'
AND monthdate BETWEEN '$a' AND '$b'
GROUP BY monthdate";
$result = mysql_query($sql);
$graphtitle="For The month of $a to $b";//Graph Title
$xname="BarChart Report By Vehicle No : $c";
$yname='VALUE';//y-axis name
$img_width=900;//image height
$img_height=700;//image width
$margins=70;
$ymargin=6;
$count=mysql_affected_rows();
$graph_width=$img_width - $margins * 2;
$graph_height=$img_height - $margins * 2;
$bar_width=25;
$total_bars=$count;
$gap= ($graph_width- $total_bars * $bar_width ) / ($total_bars +1);
$img=imagecreate($img_width,$img_height);
include 'barcolor.php';
imagefilledrectangle($img,0,0,0,0,$bag_color);
imageline($img,$margins,$img_height-45,$img_width-20,$img_height-45,$xyline_color);
imageline($img,$margins,$ymargin,$margins,$img_height-45,$xyline_color);
$maxvalue="select max(monthdate) as amount from $tablename";//Give your field name for Y axis
$max=mysql_query($maxvalue);
while($inf1= mysql_fetch_array($max))
{
$ratio=$graph_height/$inf1[0];
}
$horizontal_lines=8;
$horizontal_gap=($img_height+20)/$horizontal_lines;
for($j=1;$j<=$horizontal_lines;$j++)
{
$y=($img_height-48) - $horizontal_gap * $j ;
//imageline($img,$margins+1,$y,$img_width-20,$y,$hline_color);
$v=intval($horizontal_gap * $j /$ratio);
imagestring($img,2,$margins-30,$y-5,$v,$values_color);
}
$i=0;
while($inf = mysql_fetch_array($result))
{
$x1=($margins+10) + ($gap+5) + $i * ($gap+$bar_width) ;
$x2=$x1+$bar_width;
$y1=($img_height-46)- ceil($inf[1] * $ratio) ;
$y2=($img_height-46);
imagestring($img,2,$x1+1,$y1-15,$inf[1],$values_color);
imagestring($img,2,$x2-23,$img_height-43,$inf[0],$values_color);
imagefilledrectangle($img,$x1,$y1,$x2,$y2,$bar_color); // Draw bar
$i++;
}
imagestring($img,8, ($img_width-$margin)/2, 0, $graphtitle, $txt_color);
imagestring($img,5, ($img_width-$margin)/2, $img_height-($ymargin+10), $xname, $txt_color);
imagestringup($img,5,10,($img_height-$ymargin)/2, $yname, $txt_color);
//header('Content-type: image/png');
imagepng($img, 'barchart.jpg');
echo "<div style='border:1px solid #d8d8d8;width:$img_width'><img src='barchart.jpg'></div>";
?>