如何解析csv文件以首先获取列名，然后获取与其相关的行？

php csv fgetcsv

2022-08-30 17:22:42

这是我的csv

column1,column2,column3,column4,column5
column1_row1,column2_row1,column3_row1,column4_row1,column5_row1
column1_row2,column2_row2,column3_row2,column4_row2,column5_row2
column1_row3,column2_row3,column3_row3,column4_row3,column5_row3
column1_row4,column2_row4,column3_row4,column4_row4,column5_row4
column1_row5,column2_row5,column3_row5,column4_row5,column5_row5
column1_row6,column2_row6,column3_row6,column4_row6,column5_row6
column1_row7,column2_row7,column3_row7,column4_row7,column5_row7
column1_row8,column2_row8,column3_row8,column4_row8,column5_row8
column1_row9,column2_row9,column3_row9,column4_row9,column5_row9

第一行当然是列名。我尝试了fgetcsv（），但所有要做的就是显示所有行。而不是我想要的。我该怎么做？

因此，如果我在最后将数据放入数组中，我将能够打印出数据的表格格式，就像Excel中显示的一样。

谢谢

这是我的样本：

$filename = "upload/sample.csv";
if (($handle = fopen($filename, 'r')) !== FALSE)
{
    while (($row = fgetcsv($handle, 1000, ",")) !== FALSE) 
    {
       print_r($row);
     }
}

这是我的输出：（我把$row放到一个pre中，这样我就可以展示它）

Array
(
    [0] => column1
    [1] => column2
    [2] => column3
    [3] => column4
    [4] => column5
column1_row1
    [5] => column2_row1
    [6] => column3_row1
    [7] => column4_row1
    [8] => column5_row1
column1_row2
    [9] => column2_row2
    [10] => column3_row2
    [11] => column4_row2
    [12] => column5_row2
column1_row3
    [13] => column2_row3
    [14] => column3_row3
    [15] => column4_row3
    [16] => column5_row3
column1_row4
    [17] => column2_row4
    [18] => column3_row4
    [19] => column4_row4
    [20] => column5_row4
column1_row5
    [21] => column2_row5
    [22] => column3_row5
    [23] => column4_row5
    [24] => column5_row5
column1_row6
    [25] => column2_row6
    [26] => column3_row6
    [27] => column4_row6
    [28] => column5_row6
column1_row7
    [29] => column2_row7
    [30] => column3_row7
    [31] => column4_row7
    [32] => column5_row7
column1_row8
    [33] => column2_row8
    [34] => column3_row8
    [35] => column4_row8
    [36] => column5_row8
column1_row9
    [37] => column2_row9
    [38] => column3_row9
    [39] => column4_row9
    [40] => column5_row9
)

答案 1

要一次阅读所有内容，您可以使用：

$csv = array_map("str_getcsv", file("file1.csv",FILE_SKIP_EMPTY_LINES));
$keys = array_shift($csv);

要将所有行转换为一个漂亮的关联数组，您可以应用：

foreach ($csv as $i=>$row) {
    $csv[$i] = array_combine($keys, $row);
}

答案 2

// Opening the file for reading...
$fp = fopen('path_to_your_file.csv', 'r');

// Headrow
$head = fgetcsv($fp, 4096, ';', '"');

// Rows
while($column = fgetcsv($fp, 4096, ';', '"'))
{
    // This is a great trick, to get an associative row by combining the headrow with the content-rows.
    $column = array_combine($head, $column);

    echo $column['column1'];
}