Question

我处理的csv文件在标头之前的行数不同。我需要根据文件自动设置标题。

以下是文件的示例：

            Wine Directory List



            Wine Title  Vintage Country Region  Sub region  Appellation Color   Bottle Size Price   URL FORMAT
Chateau Petrus Pomerol  2011    France  Bordeaux    Pomerol     Red 750ML   2799.99 HTTP://holbrookliquors.com/sku218758.html   1x750ML
Pappy Van Winkle's Bourbon 15 Year Family Reserve       United States   Kentucky                0ML 999.99      1x0ML
Shipping Fee                            0ML 999.99  1x0ML
Heineken Holland Beer       Netherlands                 0ML 999.99  1x0ML

这是我的转换器：

UPDATE：第一个解决方案：getHeaderLine（）。只有挫折：当我开始使用getHeaderLine（）解析文件时，由于已经读取了getHeaderLine中的行，因此无法从HeaderLine获取数据。拜托，外面有人帮我。

public function convert($filePath, $feedColumnsMatch)
{

    //this array will contain the elements from the file
    $articles = [];

    $headerRecord = [];

        //if we can open the file on mode "read"
        if (($handle = fopen($filePath, 'r')) !== FALSE) {
            //represents the line we are reading
            $rowCounter = 0;
            $nb = $feedColumnsMatch->getNumberOfColumns();

            $headerLine = $this->getHeaderLine($handle, $nb, $delimiter);

            //as long as there are lines
            while (($rowData = fgetcsv($handle, 5000, $delimiter)) !== FALSE) {
//todo enlever le vilain 9
                if ($nb===count($rowData)) {

                    //At x line, are written the keys so we record them in $headerRecord
 //What I had first     if (9 === $rowCounter) {
//What I now have
                        if(0 === $rowCounter) {
                        //trim the titles of columns
                        for ($i = 0; $i < $nb; $i++) {
                            $rowData[$i] = trim($rowData[$i]);
                        }

                        $headerRecord = $rowData;
                    }
                    elseif(9<$rowCounter )
                    {      //for every other lines...
                        foreach ($rowData as $key => $value) {       //in each line, for each value
                            // we set $value to the cell ($key) having the same horizontal position than $value
                            // but where vertical position = 0 (headerRecord[]
                            $articles[$rowCounter][$headerRecord[$key]] = mb_convert_encoding($value, "UTF-8");

                        }
                    }
                }
                $rowCounter++;
            }
            fclose($handle);
        }

    return $articles;
}

 public function getHeaderLine($handle, $nbColumns, $delimiter){
        $rowCounter = 0;
        while (($rowData = fgetcsv($handle, 5000, $delimiter)) !== FALSE) {
            $rowCounter++;
            if ($nbColumns===count($rowData)){
                return $rowCounter;
            }

        }
        return -1;
    }

如您所见，我必须在if（）中写入“ 9”才能正确解析数据并为每个文件进行更改。

Answer 1

当您有以不同数量的无效行（空白，标题或标签等）开头的csv / tsv文件时，获得此标头的解决方案是使用side函数来首次解析该文件。具有正确单元格数量的第一行（您应该知道csv文件具有多少列）是您的标头，这样您就可以将标头的数据返回到main函数并继续从您的位置进行解析在辅助功能中停止读取。

整个代码：

public function convert($filePath, $feedColumnsMatch)
    {

        if(!file_exists($filePath) ) {
            return "existe pas";
        }
        if(!is_readable($filePath)) {
            return "pas lisible";
        }

        //this array will contain the elements from the file
        $articles = [];

        if($feedColumnsMatch->getFeedFormat()==="tsv" | $feedColumnsMatch->getFeedFormat()==="csv"){
            if($feedColumnsMatch->getFeedFormat()==="csv"){
                $delimiter = $feedColumnsMatch->getDelimiter();
            }else{
                $delimiter = "\t";
            }

            //if we can open the file on mode "read"
            if (($handle = fopen($filePath, 'r')) !== FALSE) {
                //represents the line we are reading

                $nb = $feedColumnsMatch->getNumberOfColumns();
                $headerRecord = $this->getHeader($handle, $nb, $delimiter);           // With this function, I start parsing the file till line === $headerLine
                $rowCounter = 0;
                //if there is no header
                if (null!==$headerRecord || false!==$headerRecord) {
                    //as long as there are lines
                    while (($rowData = fgetcsv($handle, 5000, $delimiter)) !== FALSE) {

                        //if it is a line with valid number of cells
                        if ($nb === count($rowData)) {

                            foreach ($rowData as $key => $value) {       //in each line, for each value
                                // we set $value to the cell ($key) having the same horizontal position than $value
                                // but where vertical position = 0 (headerRecord[]
                                $articles[$rowCounter][$headerRecord[$key]] = mb_convert_encoding($value, "UTF-8");
                            }
                        }
                        $rowCounter++;
                    }
                }
                else{
                    new \Exception();
                }
                fclose($handle);
            }
        }
        return $articles;
    }


    /**
     * is used to get the data of the row containing the header of the csv file or null if no header
     * @param $handle
     * @param $nbColumns
     * @param $delimiter
     * @return array|false|null
     */
    public function getHeader($handle, $nbColumns, $delimiter){
        $rowCounter = 0;
        while (($rowData = fgetcsv($handle, 5000, $delimiter)) !== FALSE) {
            $rowCounter++;
            if ($nbColumns===count($rowData)){
                //trim the titles of columns
                for ($i = 0; $i < $nbColumns; $i++) {
                    $rowData[$i] = trim($rowData[$i]);
                }

                return $rowData;
            }
        }
        return null;
    }

但是，我不知道这是否是正确的方法。这只是一种工作方式。

如果文件头不在文件的第一行，该如何自动设置头文件？

1 个答案: