如何验证 csv 文件在 php 中有空行？

Question

我有这个脚本能够读取完全运行的 csv 文件，但现在我想先验证它。 在上传之前，我想检查行上的每个数据。 如果数据在行上发现为空，它将抛出错误。 我尝试了很多验证，但似乎缺乏。

这是我的上传脚本：

if(!empty($_FILES["charge_file"]["name"])){

        $file = explode('.', $_FILES['charge_file']['name']);
        $csvfile = end($file);
        $csvfile_ext = array('csv');

        if(in_array($csvfile, $csvfile_ext)){                       


        $handle = fopen($_FILES["charge_file"]["tmp_name"],"r");

        while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {


                $chrg_empid = $data[0];
                $chrg_empname = $data[1];
                $chrgemp_name = utf8_encode($chrg_empname);
                $chrg_cvf = $data[2];
                $chrg_amount = $data[3];
                $chrg_store = $data[4];
                $chrg_date = $data[5];                          
                $chrg_installment = $data[6];
                $chrg_ded_type = $data[7];

                charges_individual_entry($chrg_empid, $chrg_empname, $chrg_cvf, $chrg_amount, $chrg_store, $ent_date, $chrg_ded_type, $chrg_installment);



            }

            // echo "success";

            fclose($handle);

        }
        else{   
            echo 'invalid';
        }
    }
    else{
        echo 'select';
    }

这是我插入的功能：

function charges_individual_entry($chrg_empid, $chrg_empname, $chrg_cvf, $chrg_amount, $chrg_store, $ent_date, $chrg_ded_type, $chrg_installment){

    $db = database2();
    $query = "INSERT INTO CFV_ENTRY (EMP_NO, EMP_NAME, REF_NO, AMOUNT, STORES, TRXN_DATE, DED_TYPE, NO_INSTALLMENT, DATE_INSERTED, ENTRY_TYPE, ENTRY_DESC) VALUES ('$chrg_empid', '$chrg_empname', '$chrg_cvf', '$chrg_amount', '$chrg_store', '$ent_date', '$chrg_ded_type', '$chrg_installment', SYSDATE, '1', 'CHARGE')";
    $cmd = $db->prepare($query);
    $cmd->execute();
    $db = null;

}

这是我的验证：

function isEmptyFields($csv_file){

$handle = fopen($csv_file,"r");

    $counter = 0;

    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {

        $counter = $counter + 1;

        if ($data[0] != null) {

            if ($data[1] != null) {

                if($data[2] != null){

                    if ($data[3] != null) {

                        if($data[4] != null){

                            if($data[5] != null){

                                if($data[6] != null){

                                    if($data[7] != null){



                                        // echo $chrg_empid = $data[0];
                                        echo 'success';

                            //          echo $chrg_empid = $data[0]."\n";
                                        // $chrg_empname = $data[1]."\n";
                                        // echo $chrgemp_name = utf8_encode($chrg_empname)."\n";
                                        // echo $chrg_cvf = $data[2]."\n";
                                        // echo $chrg_amount = $data[3]."\n";
                                        // echo $chrg_store = $data[4]."\n";
                                        // echo $chrg_date = $data[5]."\n";
                                        // echo $chrg_installment = $data[6]."\n";
                                        // echo $chrg_ded_type = $data[7]."\n";


                                    }else{
                                        echo 'Empty field is in line: '.$counter; 
                                    }

                                }else{
                                    echo 'Empty field is in line: '.$counter;
                                }

                            }else{
                                echo 'Empty field is in line: '.$counter;
                            }

                        }else{
                            echo 'Empty field is in line: '.$counter;
                        }

                    }else{
                        echo 'Empty field is in line: '.$counter;
                    }

                }else{
                    echo 'Empty field is in line: '.$counter;
                }

            }else{

                echo 'Empty field is in line: '.$counter;
            }

        }else{
            echo 'Empty field is in line: '.$counter;
        }

    }


    // fclose($handle);

// return $handle;

}

Answer 1

这是一个遍历行并检查是否有任何元素为空的函数。

function hasEmptyField(array $data)
{
    for ($i = 0; $i <= 7; $i++) {
        // Make sure that the key exists, isn't null or an empty string
        if (!isset($data[$i]) || $data[$i] === '') {
            return true;
        }
    }

    return false;
}

您可以在while循环中使用该函数：

$counter = 0;

while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {        

    $counter++;    

    if (hasEmptyField($data)) {
        // It has an empty field. Echo an error and skip to next row
         echo 'Empty field is in line: ' . $counter; 
         continue;
    }

    $chrg_empid       = $data[0];
    $chrg_empname     = $data[1];
    $chrgemp_name     = utf8_encode($chrg_empname);
    $chrg_cvf         = $data[2];
    $chrg_amount      = $data[3];
    $chrg_store       = $data[4];
    $chrg_date        = $data[5];                          
    $chrg_installment = $data[6];
    $chrg_ded_type    = $data[7];

    charges_individual_entry($chrg_empid, $chrg_empname, $chrg_cvf, $chrg_amount, $chrg_store, $ent_date, $chrg_ded_type, $chrg_installment);
}

Answer 2

尝试以下 -

while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
    $counter++;
    foreach($data as $entry) {
        if(!$entry) {
            echo "Error on line $counter";
            break;
        }
    }
    //other code goes here
}

Answer 3

以下检查任何空行并跳过它

$file_path="path/to/csvfile.csv";
if (($handle = fopen($file_path , "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
        if (array(null) !== $data) {
            //process lines which are not blank
        }
    }
}