我有一个 php 页面，其中包含一个按钮，假设将 MySql 数据导出到 excel。在页面上导出用户之前选择“To”和“From”日期。我放置了一个 check() javascript 函数来验证用户何时选择了两个日期。
问题陈述是在按钮上单击下载开始而不检查日期。请帮忙。这是代码。
<?
include("adminlogin.php");
include("classes/tc_calendar.php");
$myCalendar = new tc_calendar("stdt", true, false);
$myCalendar->setIcon("images/iconCalendar.gif");
$myCalendar->setPath("./");
$myCalendar->setYearInterval(2000, 2015);
$myCalendar->dateAllow('2000-01-01', '2015-12-31');
$myCalendar->setDateFormat('j F Y');
//$myCalendar->setHeight(350);
//$myCalendar->autoSubmit(true, "form1");
$myCalendar2 = new tc_calendar("enddt", true, false);
$myCalendar2->setIcon("images/iconCalendar.gif");
$myCalendar2->setPath("./");
$myCalendar2->setYearInterval(2000, 2015);
$myCalendar2->dateAllow('2000-01-01', '2015-12-31');
$myCalendar2->setDateFormat('j F Y');
//$myCalendar2->setHeight(350);
//$myCalendar2->autoSubmit(true, "form1");
$stdt1=$_POST['stdt'];
$enddt1=$_POST['enddt'];
echo "dates are";
echo $stdt1;
echo $enddt1;
// function to download report
function export_excel_csv()
{
$init_sql = "select distinct(proj_id) from timeshiftentry_master where dt>='$stdt1' and dt<='$enddt1'";
$init_res=mysql_query($init_sql);
//header info for browser
$filename = "WP_List_" . date('Ymd') . ".xls";
header("Content-Type: application/vnd.ms-excel; name='excel'");
header("Content-Disposition: attachment; filename=\"$filename\"");
header("Pragma: no-cache");
header("Expires: 0");
/*******Start of Formatting for Excel*******/
//define separator (defines columns in excel & tabs in word)
$sep = "\t"; //tabbed character
ob_end_clean();
//start of printing column names as names of MySQL fields
/*for ($i = 0; $i < mysql_num_fields($result); $i++)
{
if($i == 0)
{
echo "S. No." . "\t";
}
echo mysql_field_name($result,$i) . "\t";
}
echo "Employee Name" . "\t";
echo "Hours Booked" . "\t";
print("\n");*/
$SerialNum = 0;
while($init_row=mysql_fetch_array($init_res))
{
$sql = "SELECT * FROM project_master where proj_id='$init_row[0]'";
//execute query
$result = mysql_query($sql) or die (mysql_error());
//end of printing column names
//start while loop to get data
while($row = mysql_fetch_array($result))
{
// get the emplyoee details
$projid=$row[0];
$projnm=$row[1];
$sql_emp="Select distinct(emp_no),emp_name from timeshiftentry_master where proj_id='$projnm' and dt>='$stdt1' and dt<='$enddt1'";
$res_emp=mysql_query($sql_emp);
while($row_emp=mysql_fetch_array($res_emp))
{
$sql_hrs="select sum(wrkhrs) from timeshiftentry_master where proj_name='$projnm' and emp_no='$row_emp[0]' and dt>='$stdt1' and dt<='$enddt1'";
$res_hrs=mysql_query($sql_hrs);
$row_hrs=mysql_fetch_array($res_hrs);
if($row_hrs[0] >= 0)
{
$SerialNum++;
// insert to excel
$schema_insert = "";
for($j=0; $j<mysql_num_fields($result);$j++)
{
if($j==0)
{
$schema_insert .= "$SerialNum".$sep;
}
if(!isset($row[$j]))
$schema_insert .= "NULL".$sep;
elseif ($row[$j] != "")
$schema_insert .= "$row[$j]".$sep;
else
$schema_insert .= "".$sep;
}
$schema_insert .= "$row_emp[1]".$sep;
$schema_insert .= "$row_hrs[0]".$sep;
$schema_insert = str_replace($sep."$", "", $schema_insert);
$schema_insert = preg_replace("/\r\n|\n\r|\n|\r/", " ", $schema_insert);
$schema_insert .= "\t";
print(trim($schema_insert));
print "\n";
// inserted one row
}
}
}
}
exit();
}
/*if(!isset($_POST))
{
export_excel_csv();
}*/
if($_SERVER['REQUEST_METHOD']=="POST")
{
$chk1= $_POST['download'];
if($chk1=='Download')
{
export_excel_csv();
}
}
else
{
}
?>
<script language="javascript">
<!--
function check()
{
if(show)
{
if(document.f1.stdt.value=="0000-00-00")
{
alert("Please Enter Start Date")
show=false;
return false;
}
if(document.f1.enddt.value=="0000-00-00")
{
alert("Please Enter the End Date")
show=false;
return false;
}
if(document.f1.stdt.value>document.f3.enddt.value)
{
alert("Dates not allowed.")
show=false;
return false;
}
}
return true;
}
//-->
</script>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Bombardier TSM System</title>
<style type="text/css">
<!--
.style1 {font-size: small}
.style2 {color: #FFFFFF}
.style3 {font-size: x-small}
-->
</style>
</head>
<body>
<form name="f1" method="POST" action="" onClick="return check()">
<script language="javascript" src="calendar.js"></script>
<br>
<table align="center" cellspacing="5">
<tr>
<th colspan="2"><font color="#993300" size="4">Download Hours Booking Report</font></th>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td align="right"><font color="#993300">From : </font></td>
<td><?$myCalendar->writeScript();?></td>
</tr>
<tr>
<td align="right"><font color="#993300">To : </font></td>
<td><?$myCalendar2->writeScript();?></td>
</tr>
<tr>
<td> </td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" name="download" value="Download" id="download" onclick="download=true"/></td
</tr>
</table>
<p> </p>
<p> </p>
<p> </p>
<?include("footer.php");?>
</form>
</body>
</html>