Question

我正在尝试将上传的CSV文件处理成PHP中的数组。我有这个工作正常，但用户的一些文件最终有一堆空白行与分隔符。这通常发生在他们在现有文件上使用Excel时。突出显示旧细胞并清除它们。

示例CSV文件

lineNo,date,vendor,amount
1,5/2/2012,V000236,3727.21
2,5/2/2012,V003432,4826.19
,,,
,,,

成为以下数组

Array
(
    [0] => Array
        (
            [0] => lineNo
            [1] => date
            [2] => vendor
            [3] => amount
        )

    [1] => Array
        (
            [0] => 1
            [1] => 5/2/2012
            [2] => V000236
            [3] => 3727.21
        )

    [2] => Array
        (
            [0] => 2
            [1] => 5/2/2012
            [2] => V003432
            [3] => 4826.19
        )

    [3] => Array
        (
            [0] => 
            [1] => 
            [2] => 
            [3] => 
        )

    [4] => Array
        (
            [0] => 
            [1] => 
            [2] => 
            [3] => 
        )
)

我不想删除任何空行，我想在数组索引后停止2.轻松实现我的功能我是新的：P

function csvToArray($csvFile, $specialChars = FALSE) {
$arrayCSV = array();

if (($csvHandle = fopen($csvFile, "r")) !== FALSE) { // Open the CSV
    $csvKey = 0; // Set the parent array key to 0

    while (($csvData = fgetcsv($csvHandle)) !== FALSE) {
        $c = count($csvData); // Count the total keys in each row

        //need something to stop on blank delimiter rows ,,,

        for ($x = 0; $x < $c; $x++) { //Populate the array
            if ($specialChars === TRUE) {
                $arrayCSV[$csvKey][$x] = htmlspecialchars($csvData[$x]);
            } else {
                $arrayCSV[$csvKey][$x] = $csvData[$x];
            }
        }
        $csvKey++;
    }

    fclose($csvHandle);
}

return $arrayCSV;
}

最终，我希望这个回归

Array
(
    [0] => Array
        (
            [0] => lineNo
            [1] => date
            [2] => vendor
            [3] => amount
        )

    [1] => Array
        (
            [0] => 1
            [1] => 5/2/2012
            [2] => V000236
            [3] => 3727.21
        )

    [2] => Array
        (
            [0] => 2
            [1] => 5/2/2012
            [2] => V003432
            [3] => 4826.19
        )
)

Answer 1

一旦找到空值，你不能break;你的while循环吗？

if (($csvHandle = fopen($csvFile, "r")) !== FALSE) { // Open the CSV
    $csvKey = 0; // Set the parent array key to 0

    while (($csvData = fgetcsv($csvHandle)) !== FALSE) {
        $c = count($csvData); // Count the total keys in each row

        // ## Flag variable ##########
        $empty = true;

        for ($x = 0; $x < $c; $x++) { //Populate the array

            // ## Test each value ##########
            $empty = $empty && (empty($csvData[$x]));

            if ($specialChars === TRUE) {
                $arrayCSV[$csvKey][$x] = htmlspecialchars($csvData[$x]);
            } else {
                $arrayCSV[$csvKey][$x] = $csvData[$x];
            }
        }

        // ## Stop loop if all empty ##########
        if ($empty) {
             unset($arrayCSV[$csvKey]);
             break;
        }
        $csvKey++;

    }

    fclose($csvHandle);
}

Answer 2

注意：

CSV文件中的空白行将作为包含单个 null 字段的数组返回，并且不会被视为错误。

    if ($c == 1 && current($csvData) === null) {
        break;
    }

Answer 3

您可以运行一个额外的循环以检查是否为空

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Answer 4

我推荐这个完全符合你想要的php功能

http://www.php.net/manual/es/function.file.php

PHP CSV文件停止在空白行

4 个答案: