我必须创建一个脚本，该脚本接受mySQL表，并将其导出为.XLS格式，然后将该文件保存到Web主机上的指定文件夹中。
我得到了它的工作，但现在我似乎无法让它自动将文件保存到该位置而不提示用户。
它需要在指定时间每天运行，因此它可以将前几天导致保存到Web主机上的.XLS文件中。
以下是代码：
<?php
// DB TABLE Exporter
//
// How to use:
//
// Place this file in a safe place, edit the info just below here
// browse to the file, enjoy!
// CHANGE THIS STUFF FOR WHAT YOU NEED TO DO
$dbhost = "-";
$dbuser = "-";
$dbpass = "-";
$dbname = "-";
$dbtable = "-";
// END CHANGING STUFF
$cdate = date("Y-m-d"); // get current date
// first thing that we are going to do is make some functions for writing out
// and excel file. These functions do some hex writing and to be honest I got
// them from some where else but hey it works so I am not going to question it
// just reuse
// This one makes the beginning of the xls file
function xlsBOF() {
echo pack("ssssss", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
return;
}
// This one makes the end of the xls file
function xlsEOF() {
echo pack("ss", 0x0A, 0x00);
return;
}
// this will write text in the cell you specify
function xlsWriteLabel($Row, $Col, $Value ) {
$L = strlen($Value);
echo pack("ssssss", 0x204, 8 + $L, $Row, $Col, 0x0, $L);
echo $Value;
return;
}
// make the connection an DB query
$dbc = mysql_connect( $dbhost , $dbuser , $dbpass ) or die( mysql_error() );
mysql_select_db( $dbname );
$q = "SELECT * FROM ".$dbtable." WHERE date ='$cdate'";
$qr = mysql_query( $q ) or die( mysql_error() );
// Ok now we are going to send some headers so that this
// thing that we are going make comes out of browser
// as an xls file.
//
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
//this line is important its makes the file name
header("Content-Disposition: attachment;filename=export_".$dbtable.".xls ");
header("Content-Transfer-Encoding: binary ");
// start the file
xlsBOF();
// these will be used for keeping things in order.
$col = 0;
$row = 0;
// This tells us that we are on the first row
$first = true;
while( $qrow = mysql_fetch_assoc( $qr ) )
{
// Ok we are on the first row
// lets make some headers of sorts
if( $first )
{
foreach( $qrow as $k => $v )
{
// take the key and make label
// make it uppper case and replace _ with ' '
xlsWriteLabel( $row, $col, strtoupper( ereg_replace( "_" , " " , $k ) ) );
$col++;
}
// prepare for the first real data row
$col = 0;
$row++;
$first = false;
}
// go through the data
foreach( $qrow as $k => $v )
{
// write it out
xlsWriteLabel( $row, $col, $v );
$col++;
}
// reset col and goto next row
$col = 0;
$row++;
}
xlsEOF();
exit();
?>
我尝试使用，fwrite来实现这一目标，但它看起来并不顺利，我也删除了标题信息，但没有任何效果。
这是原始代码，正如我发现的那样，任何帮助都将不胜感激。 ： - ）
提前完成。 ： - ）
答案 0 :(得分：3)
首先，由于您通过cron将其保存到磁盘，因此您应该删除所有可疑的header（）调用。为了尽可能少地重写代码，我建议使用输出缓冲（http://www.php.net/manual/en/ref.outcontrol.php）。要完成此操作，请在文件输出开始之前调用ob_start（）：
ob_start();
// start the file
xlsBOF();
输出结束后，关闭输出缓冲区，捕获其内容并将其写入文件：
xlsEOF();
// $filename should be set to some writeable location
file_put_contents($filename, ob_get_clean());
答案 1 :(得分：3)
这是最终的代码，它就像一个魅力。
<?php
// DB TABLE Exporter
//
// How to use:
//
// Place this file in a safe place, edit the info just below here
// browse to the file, enjoy!
// CHANGE THIS STUFF FOR WHAT YOU NEED TO DO
$cdate = date("Y-m-d");
$dbhost = "-";
$dbuser = "-";
$dbpass = "-";
$dbname = "-";
$dbtable = "-";
$filename = "exported_on_$cdate.xls";
// END CHANGING STUFF
// first thing that we are going to do is make some functions for writing out
// and excel file. These functions do some hex writing and to be honest I got
// them from some where else but hey it works so I am not going to question it
// just reuse
// This one makes the beginning of the xls file
function xlsBOF() {
echo pack("ssssss", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
return;
}
// This one makes the end of the xls file
function xlsEOF() {
echo pack("ss", 0x0A, 0x00);
return;
}
// this will write text in the cell you specify
function xlsWriteLabel($Row, $Col, $Value ) {
$L = strlen($Value);
echo pack("ssssss", 0x204, 8 + $L, $Row, $Col, 0x0, $L);
echo $Value;
return;
}
// make the connection an DB query
$dbc = mysql_connect( $dbhost , $dbuser , $dbpass ) or die( mysql_error() );
mysql_select_db( $dbname );
$q = "SELECT * FROM ".$dbtable." WHERE date ='$cdate'";
$qr = mysql_query( $q ) or die( mysql_error() );
//start the object
ob_start();
// start the file
xlsBOF();
// these will be used for keeping things in order.
$col = 0;
$row = 0;
// This tells us that we are on the first row
$first = true;
while( $qrow = mysql_fetch_assoc( $qr ) )
{
// Ok we are on the first row
// lets make some headers of sorts
if( $first )
{
foreach( $qrow as $k => $v )
{
// take the key and make label
// make it uppper case and replace _ with ' '
xlsWriteLabel( $row, $col, strtoupper( ereg_replace( "_" , " " , $k ) ) );
$col++;
}
// prepare for the first real data row
$col = 0;
$row++;
$first = false;
}
// go through the data
foreach( $qrow as $k => $v )
{
// write it out
xlsWriteLabel( $row, $col, $v );
$col++;
}
// reset col and goto next row
$col = 0;
$row++;
}
xlsEOF();
//write the contents of the object to a file
file_put_contents($filename, ob_get_clean());
?>
Thanx为所有帮助人员!!!
答案 2 :(得分：1)
是xls还是xsl文件格式？ 让我困惑。
首先：你需要设置字体样式，使用多个标签，使用公式吗？ 如果是这样的话，试着去找一个像phpwriteexcel这样的excel库。
否则，一个简单的csv文件就足够了（逗号分隔值，很容易从数组中创建，与excel和其他电子表格软件完美匹配）。
然后，在不提示的情况下自动保存：转到计划任务/ cron任务，调用脚本。