在PHP中从CSV创建多维关联数组

Question

在PHP中从CSV创建多维关联数组

phpcsvmultidimensional-arrayassociative-array

3

我正在尝试在PHP中创建一个多维数组，其中内部数组对于以下示例CSV字符串$csv是关联的：

# Results from 2015-06-16 to 2015-06-16.
date,time,label,artist,composer,album,title,duration
2015-06-16,12:00 AM,Island,U2,"Clayton- Adam,The Edge,Bono,Mullen- Larry- Jr",Songs Of Innocence,SONG FOR SOMEONE,03:46
2015-06-16,12:04 AM,Lowden Proud,"Fearing & White, Andy White, Stephen Fearing","White- Andy,Fearing- Stephen",Tea And Confidences,SECRET OF A LONG LASTING LOVE,03:10
2015-06-16,12:07 AM,Columbia,The Wallflowers,"Dylan- Jakob,Irons- Jack,Mathis- Stuart,Richling- Greg,Jaffee- Rami",Glad All Over,REBOOT THE MISSION,03:31
2015-06-16,12:10 AM,Distort Light,Bend Sinister,Moxon- Daniel,"Stories Of Brothers, Tales Of Lovers",JIMMY BROWN,03:48

第三行及以上格式的实际数据行数是可变的。我目前所做的是创建一个简单的多维数组：

$resultArray = str_getcsv($csv, PHP_EOL);//parse the rows
array_shift($resultArray);//shift out results first row: date info
array_shift($resultArray);//shift out results new first row: field labels
foreach($resultArray as &$row) {//parse the items in rows
    $row = str_getcsv($row, ",", '"');//removes the '"' field enclosure?
}//foreach

这创建了一个功能性的多维数组，但我无法弄清如何使内部数组关联起来，以便我可以使用来自预期使用的数组中的文本友好键访问它们：

$rowFieldKeysArray = array('date', 'time', 'label', 'artist', 'composer', 'album', 'title', 'duration');

我相信有一种简单的PHP方法可以将关键字数组用作关联数组的键，但我不确定如何实现。我怀疑我需要做类似于以下的事情：

foreach($resultArray as $rowKey => &$row) {
    $row[$rowFieldKeysArray[$rowKey]] = str_getcsv($row, ",", '"');
}//foreach

但是这会产生一个“警告：非法字符串偏移量'date'[...]”的错误。

我应该怎么做？

编辑：根据Andrew评论中提供的链接和我接受的答案中提供的信息，我能够使用以下有效的代码解决这个问题。

    $resultArray = str_getcsv($csv, PHP_EOL);//parse the rows
    array_shift($resultArray);//shift out results first row: date info
    $rowFieldKeysArray = str_getcsv( array_shift($resultArray), "," );//shift out results new first row: field labels into field key name array
    //array('date', 'time', 'label', 'artist', 'composer', 'album', 'title', 'duration');//array of Key field names for associative array
    //       [0]     [1]      [2]      [3]        [4]        [5]      [6]       [7]      //key index
    foreach($resultArray as &$row) {//parse the items in rows
        $row = array_combine($rowFieldKeysArray, str_getcsv($row, ",", '"'));//array_combine replaces numeric indexes with key field labels
    }//foreach

谢谢你！

- BartmanEH

@Andrew：你的参考非常有帮助，我已经用那些信息解决了这个问题。如果你把这个作为答案发布，我会接受它的。 - undefined

请参考类似的主题：https://dev59.com/L4nda4cB1Zd3GeqPEdWd#29711416 - undefined

由于某种原因，无法将其发布为答案。没关系，我很高兴能够帮助到您。 - undefined

1个回答

网页内容由stack overflow 提供, 点击上面的

可以查看英文原文，
原文链接

- Akshay Hegde · Accepted Answer

这可能会对您有所帮助

脚本 - 从文件中将csv转换为数组

[akshay@localhost tmp]$ cat test.php
<?php

function csv_to_array($filename='', $delimiter=',')
{
    if(!file_exists($filename) || !is_readable($filename))
        return FALSE;

    $header = NULL;
    $data = array();
    if (($handle = fopen($filename, 'r')) !== FALSE)
    {
        while (($row = fgetcsv($handle, 0, $delimiter)) !== FALSE)
        {

            if(!$header)
            {
               $header = $row;
            }
            else
            {
                if(count($header)!=count($row)){ continue; }

                $data[] = array_combine($header, $row);
            }
        }
        fclose($handle);
    }
    return $data;
}

print_r(csv_to_array("/tmp/test.csv"));

?>

[akshay@localhost tmp]$ cat test.php
<?php

function str_to_csv_to_array($string, $delimiter=',')
{
        $header = NULL;
        $data = array();
        $rows = explode(PHP_EOL, $string); 
        foreach($rows as $row_str)
        {
            $row = str_getcsv($row_str);
            if(!$header)
            {
               $header = $row;
            }
            else
            {
                if(count($header)!=count($row)){ continue; }

                $data[] = array_combine($header, $row);
            }
        }

    return $data;
}


$string = <<<EOF
date,time,label,artist,composer,album,title,duration
2015-06-16,12:00 AM,Island,U2,"Clayton- Adam,The Edge,Bono,Mullen- Larry- Jr",Songs Of Innocence,SONG FOR SOMEONE,03:46
2015-06-16,12:04 AM,Lowden Proud,"Fearing & White, Andy White, Stephen Fearing","White- Andy,Fearing- Stephen",Tea And Confidences,SECRET OF A LONG LASTING LOVE,03:10
2015-06-16,12:07 AM,Columbia,The Wallflowers,"Dylan- Jakob,Irons- Jack,Mathis- Stuart,Richling- Greg,Jaffee- Rami",Glad All Over,REBOOT THE MISSION,03:31
2015-06-16,12:10 AM,Distort Light,Bend Sinister,Moxon- Daniel,"Stories Of Brothers, Tales Of Lovers",JIMMY BROWN,03:48
EOF;

print_r(str_to_csv_to_array($string));
?>

输入文件

[akshay@localhost tmp]$ cat test.csv
date,time,label,artist,composer,album,title,duration
2015-06-16,12:00 AM,Island,U2,"Clayton- Adam,The Edge,Bono,Mullen- Larry- Jr",Songs Of Innocence,SONG FOR SOMEONE,03:46
2015-06-16,12:04 AM,Lowden Proud,"Fearing & White, Andy White, Stephen Fearing","White- Andy,Fearing- Stephen",Tea And Confidences,SECRET OF A LONG LASTING LOVE,03:10
2015-06-16,12:07 AM,Columbia,The Wallflowers,"Dylan- Jakob,Irons- Jack,Mathis- Stuart,Richling- Greg,Jaffee- Rami",Glad All Over,REBOOT THE MISSION,03:31
2015-06-16,12:10 AM,Distort Light,Bend Sinister,Moxon- Daniel,"Stories Of Brothers, Tales Of Lovers",JIMMY BROWN,03:48

两个脚本的输出结果相同

[akshay@localhost tmp]$ php test.php
Array
(
    [0] => Array
        (
            [date] => 2015-06-16
            [time] => 12:00 AM
            [label] => Island
            [artist] => U2
            [composer] => Clayton- Adam,The Edge,Bono,Mullen- Larry- Jr
            [album] => Songs Of Innocence
            [title] => SONG FOR SOMEONE
            [duration] => 03:46
        )

    [1] => Array
        (
            [date] => 2015-06-16
            [time] => 12:04 AM
            [label] => Lowden Proud
            [artist] => Fearing & White, Andy White, Stephen Fearing
            [composer] => White- Andy,Fearing- Stephen
            [album] => Tea And Confidences
            [title] => SECRET OF A LONG LASTING LOVE
            [duration] => 03:10
        )

    [2] => Array
        (
            [date] => 2015-06-16
            [time] => 12:07 AM
            [label] => Columbia
            [artist] => The Wallflowers
            [composer] => Dylan- Jakob,Irons- Jack,Mathis- Stuart,Richling- Greg,Jaffee- Rami
            [album] => Glad All Over
            [title] => REBOOT THE MISSION
            [duration] => 03:31
        )

    [3] => Array
        (
            [date] => 2015-06-16
            [time] => 12:10 AM
            [label] => Distort Light
            [artist] => Bend Sinister
            [composer] => Moxon- Daniel
            [album] => Stories Of Brothers, Tales Of Lovers
            [title] => JIMMY BROWN
            [duration] => 03:48
        )

)