Question

我一直在网上搜索关于使用PHP将数据从textarea导出到CSV ...

我想让我的页面上的按钮生成CSV文件，并在按下时提供下载。

我所能找到的只是从html表或mysql导出而我不需要...

基本上textarea包含一些数据，一旦按下按钮，我希望能够将该数据下载为CSV文件......

以下是我尝试自定义的课程：

<?php 
class textarea_2_csv{

    var $arrLines;
    var $data;
    var $divider;

    function __construct($postedData){

        $this->arrLines = explode("\r\n",$postedData['xls']);
        $this->data = NULL;

    }

    // process the posted data
    function set_data(){

        if(is_array($this->arrLines)){

            if($this->divider == NULL) $this->set_divider(); // default divider setting if no other option is passed

            foreach($this->arrLines as $key=>$line){

                // if more than 1 field
                if(strpos($line, chr(9)) !== FALSE){

                    $arrFields = explode(chr(9),$line);

                    foreach($arrFields as $c=>$val){

                        $this->data .= $val.$this->divider;

                    }

                    $this->data = trim($this->data,$this->divider);
                    $this->data .= "\r\n";

                }
                // if only 1 field
                else{

                    $this->data .= $line."\r\n";

                }

            }       

        }

    }

    // saves the data as file or returns it back
    function save_data($write = false){

        $this->set_data();

        if(!$write == false){

            // write file (.txt if divider is tab)
            ($this->divider == chr(9)) ? $ext = '.txt' : $ext = '.csv';
            if(file_put_contents($write.$ext, $this->data)) echo('<h3>Data saved in file: '.$write.$ext.'</h3>');
            return(NULL);

        }
        else{

            // return de data
            return($this->data);

        }

    }   

    // set the divider as default to a comma
    function set_divider($opt=','){

        $this->divider = $opt;

    }

}

以下是实际页面：

<?php
require_once('class.textarea2csv.php');
/*
 * 1) initiate the class passing the $_POST data
 * 2) optional: set a different divider than comma (default) with function set_divider(';') or set_divider(chr(9)); options are: ; and tab
 * 3) call the function save_data() without parameter to get the data returned OR call the function save_data('filename') with a parameter to save the data with the given filename
 */

if(isset($_POST['xls']) && trim($_POST['xls']) != ''){

    $csv = new textarea_2_csv($_POST);

    // possibility to set the divider to another format
    // $xls->set_divider(';');
    // $xls->set_divider(chr(9));

    // process data and save it with filename output
    $data = $csv->save_data('output');

}
?>
<html>
    <h2>Example of class "Textarea 2 csv"</h2>
    <p>Copy the the content of an excel sheet, paste it in the textarea and click on "Send".</p>
    <form method="post">
        <p><textarea name="xls" style="width: 800px; height: 400px"></textarea></p>
        <p><input type="submit" value="Send" /></p>
    </form> 
</html>

我无法按照我的意愿自定义它......

再一次，textarea已经填充了一些数据，当有人点击按钮时，他/她应该将这些数据导出为CSV文件。

谢谢。

Answer 1

您可以尝试：

if($bdd = mysqli_connect('localhost', 'root', '', 'checkport'))
{
    if(isset($_POST['sub']))
    {
        $drp = "delete from listeadresse";
        mysqli_query($bdd, $drp);
        $filename=$_FILES["file"]["tmp_name"];
        $file = fOpen($filename, "r");

        $count=0;
        while(($emapdata = fgetcsv($file, 100, ";")) !== FALSE )
        {

使用PHP从textarea导出到CSV文件

1 个答案: