在mysql中打印表后导出到csv

时间:2014-12-11 17:02:53

标签: php mysql forms csv

自从很长时间以来一直试图解决这个问题,但没有结果。用户可以在表单中选择一些过滤器,从而在屏幕上打印一个唯一的表格。

然后我想要一个按钮将这个特定的表导出到存储在用户计算机上的csv文件。

if(isset($_POST["askReport"])){ 
//all the variables
//...
$myQuery = ""SELECT *, TIME_TO_SEC(stopwerkdagU) - TIME_TO_SEC(startwerkdagU) - pauzetijdU AS totaalurenU, TIME_TO_SEC(stopwerkdagU) - TIME_TO_SEC(startwerkdag) - pauzetijd AS totaaluren FROM `newRegister` $u $aP $pD $uF $sD"";

$result = $mysqli->query($myQuery);
  if($result->num_rows >0){
    print '<table><tr><th>.....'; //and all the headers
    print '<td>'.$row["user"].'</td>';
    ..... //and all the other columns and end of row
  }

到目前为止,非常好,我得到了一张包含我想要的结果的好桌子。但接下来是棘手的部分 - 如何获得下载此表的按钮?这是我尝试的:(这段代码是在isset中的stil($ _ POST [“askReport”])if语句)

// DOWNLOAD TABEL
    print '<form method="POST"><button name=download>download</button></form>';

    if(isset($_POST["download"])){
        $select = "SELECT *, TIME_TO_SEC(stopwerkdagU) - TIME_TO_SEC(startwerkdagU) - pauzetijdU AS totaalurenU, TIME_TO_SEC(stopwerkdagU) - TIME_TO_SEC(startwerkdag) - pauzetijd AS totaaluren FROM `newRegister` $u $aP $pD $uF $sD";

        $export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( ) );

        $fields = mysql_num_fields ( $export );

        for ( $i = 0; $i < $fields; $i++ )
        {
            $header .= mysql_field_name( $export , $i ) . "\t";
        }

        while( $row = mysql_fetch_row( $export ) )
        {
            $line = '';
            foreach( $row as $value )
            {                                            
                if ( ( !isset( $value ) ) || ( $value == "" ) )
                {
                    $value = "\t";
                }
                else
                {
                    $value = str_replace( '"' , '""' , $value );
                    $value = '"' . $value . '"' . "\t";
                }
                $line .= $value;
            }
            $data .= trim( $line ) . "\n";
        }
        $data = str_replace( "\r" , "" , $data );

        if ( $data == "" )
        {
            $data = "\n(0) Records Found!\n";                        
        }

        header("Content-type: application/octet-stream");
        header("Content-Disposition: attachment; filename=download  .xls");
        header("Pragma: no-cache");
        header("Expires: 0");
        print "$header\n$data";         
    };

}   

这不会给出任何错误。它只是重新加载页面。所以我无法弄清楚它为什么不起作用。我感谢你的帮助。

1 个答案:

答案 0 :(得分:0)

部分解决方案

以下代码(您的代码,只是为了测试目的而注释掉的MySQL)运行正常。我正在运行Apache / 2.4.9(Unix)PHP / 5.5.14

使我下载<?php?>代码的工作就是下载工作。试试这段代码,让我知道它是否有效。

<?php
// DOWNLOAD TABEL
    print '<form method="POST"><button name=download>download</button></form>';

    if(isset($_POST["download"])){
        $select = "SELECT *, TIME_TO_SEC(stopwerkdagU) - TIME_TO_SEC(startwerkdagU) - pauzetijdU AS totaalurenU, TIME_TO_SEC(stopwerkdagU) - TIME_TO_SEC(startwerkdag) - pauzetijd AS totaaluren FROM `newRegister` $u $aP $pD $uF $sD";

/*        $export = mysql_query ( $select ) or die ( "Sql error : " . mysql_error( ) );

        $fields = mysql_num_fields ( $export );

        for ( $i = 0; $i < $fields; $i++ )
        {
            $header .= mysql_field_name( $export , $i ) . "\t";
        }

        while( $row = mysql_fetch_row( $export ) )
        {
            $line = '';
            foreach( $row as $value )
            {   
                if ( ( !isset( $value ) ) || ( $value == "" ) )
                {
                    $value = "\t";
                }
                else
                {
                    $value = str_replace( '"' , '""' , $value );
                    $value = '"' . $value . '"' . "\t";
                }
                $line .= $value;
            }
            $data .= trim( $line ) . "\n";
        }
        $data = str_replace( "\r" , "" , $data );
*/

        if ( $data == "" )
        {
            $data = "\n(0) Records Found!\n";
        }

$header="abc,123";

        header("Content-type: application/octet-stream");
        header("Content-Disposition: attachment; filename=download  .xls");
        header("Pragma: no-cache");
        header("Expires: 0");
        echo "$header\n$data";
    };

?>