我正在为laravel的控制台命令处理CSV文件。我知道有一些用于导入CSV文件的库,但是我遇到了一个奇怪的未定义索引错误,希望有人可以提供更多信息。没有此专栏,我可以达到我所需要的,但是我很好奇为什么会发生此错误。
public function handle()
{
$file = Storage::disk('local')->get('upload.csv');
$lines = explode("\r\n", $file);
$keys = [];
foreach ($lines as $key => $line)
{
$outputLine = [];
if($key == 0)
{
// Get header columns
$keys = str_getcsv($line); continue;
}
// Get row contents
$items = str_getcsv($line);
foreach ($items as $k => $item)
{
// Rename keys to match headers
$outputLine[$keys[$k]] = $item;
}
// try to access $outputLine['id']
// error: Undefined Index: id
$csv[$key] = $outputLine;
}
}
但是$csv[$key]
的输出清楚地显示了csv中所有条目的键['id']。在这里尝试访问也会引发同样的问题。访问数组中的任何其他任意键都可以正常工作。无论名称如何,它始终是第一把钥匙。
更新:提供CSV导入的示例
id,name,email,membership_id
1,John,John@example.com,1
2,Jane,Jane@example.com,2
3,Brian,Brian@example.com,3
更新2:提供$ items的转储
array:4 [
0 => "1"
1 => "John"
2 => "john@example.com"
3 => "1"
]
array:4 [
0 => "2"
1 => "Jane"
2 => "jane@example.com"
3 => "2"
]
array:4 [
0 => "3"
1 => "Brian"
2 => "brian@example.com"
3 => "3"
]
array:4 [
0 => "4"
1 => "Adam"
2 => "adam@example.com"
3 => "4"
]
array:4 [
0 => "5"
1 => "Frank"
2 => "frank@example.com"
3 => "5"
]
array:4 [
0 => "6"
1 => "Phil"
2 => "phil@example.com"
3 => "6"
]
$outputLine
的转储
array:4 [
"id" => "1"
"name" => "John"
"email" => "john@example.com"
"membership_id" => "1"
]
array:4 [
"id" => "2"
"name" => "Jane"
"email" => "jane@example.com"
"membership_id" => "2"
]
array:4 [
"id" => "3"
"name" => "Brian"
"email" => "brian@example.com"
"membership_id" => "3"
]
array:4 [
"id" => "4"
"name" => "Adam"
"email" => "adam@example.com"
"membership_id" => "4"
]
array:4 [
"id" => "5"
"name" => "Frank"
"email" => "frank@example.com"
"membership_id" => "5"
]
array:4 [
"id" => "6"
"name" => "Phil"
"email" => "phil@example.com"
"membership_id" => "6"
]
答案 0 :(得分:0)
我认为您没有在CSV中使用默认的定界符,
https://www.php.net/manual/en/function.str-getcsv.php
尝试根据输入文件中的内容设置正确的
str_getcsv($line, ';') // example with ';' delimiter