【发布时间】：2020-03-25 16:43:16
【问题描述】：
使用以下代码，我可以生成 2 个数组..
function readCSV($csvFile){
$file_handle = fopen($csvFile, 'r');
//ignores first line of csv
fgetcsv($file_handle);
while (!feof($file_handle) ) {
$line_of_text[] = fgetcsv($file_handle, 1024);
}
fclose($file_handle);
return $line_of_text;
}
// Set path to CSV file
$csvFile = 'csv1.csv';
$csvFile2 = 'csv2.csv';
$csv = readCSV($csvFile);
$csv2 = readCSV($csvFile2);
echo '<pre>';
$arr = [];
//$csv is your array
foreach($csv as $key => $value){
if(!array_key_exists($value[24],$arr)){
$arr[$value[24]] = [];
}
$arr[$value[24]] = array_merge($arr[$value[24]],$value);
}
//ignores last item in array
array_pop($arr);
$arr2 = [];
//$csv2 is your array
foreach($csv2 as $key => $value){
if(!array_key_exists($value[1],$arr2)){
$arr2[$value[1]] = [];
}
$arr2[$value[1]] = array_merge($arr2[$value[1]],$value);
}
echo '<pre>';
print_r($arr);
print_r($arr2);
echo '</pre>';
这将输出数组如下.. 数组 1 ($arr)
Array
(
[1593608448] => Array
(
[0] => 03/25/20
[1] => Vinyl Decal Sticker
[2] =>
[3] => 1
[4] => 2.85
[5] =>
[6] =>
[7] => 0.00
[8] => 0.00
[9] => 2.49
[10] => 0
[11] => 2.85
[12] => GBP
[13] => 1829006957
[14] => 627718667
[15] => 03/25/2020
[16] => 03/25/2020
[17] => John Smith
[18] => Any Street
[19] =>
[20] => Somewhere
[21] => Someplace
[22] => PC0 DE
[23] => United Kingdom
[24] => 1593608448
[25] => Colour:Yellow
[26] => online
[27] => listing
[28] => online_cc
[29] =>
[30] =>
[31] => 0
)
)
和数组 2 ($arr2)
Array
(
[1593608448] => Array
(
[0] => 03/25/20
[1] => 1593608448
[2] =>
[3] => John Smith
[4] => John
[5] => Smith
[6] => 1
[7] => Credit Card
[8] => 03/25/20
[9] => Any Street
[10] =>
[11] => Somewhere
[12] => Someplace
[13] => PC 0DE
[14] => United Kingdom
[15] => GBP
[16] => 2.85
[17] =>
[18] =>
[19] => 0.00
[20] => 0.00
[21] => 2.49
[22] => 0
[23] => 5.88
[24] =>
[25] => 0.44
[26] => 4.9
[27] =>
[28] =>
[29] =>
[30] => John Smith
[31] => online
[32] => online_cc
[33] =>
[34] =>
)
)
我已尝试将这些数组与..合并。
$merged = array_merge($arr,$arr2);
print_r($merged);
这输出为..
Array
(
[0] => Array
(
[0] => 03/25/20
[1] => Vinyl Decal Sticker
[2] =>
[3] => 1
[4] => 2.85
[5] =>
[6] =>
[7] => 0.00
[8] => 0.00
[9] => 2.49
[10] => 0
[11] => 2.85
[12] => GBP
[13] => 1829006957
[14] => 627718667
[15] => 03/25/2020
[16] => 03/25/2020
[17] => John Smith
[18] => Any Street
[19] =>
[20] => Somewhere
[21] => Someplace
[22] => PC0 DE
[23] => United Kingdom
[24] => 1593608448
[25] => Colour:Yellow
[26] => online
[27] => listing
[28] => online_cc
[29] =>
[30] =>
[31] => 0
)
[1] => Array
(
[0] => 03/25/20
[1] => 1593608448
[2] =>
[3] => John Smith
[4] => John
[5] => Smith
[6] => 1
[7] => Credit Card
[8] => 03/25/20
[9] => Any Street
[10] =>
[11] => Somewhere
[12] => Someplace
[13] => PC 0DE
[14] => United Kingdom
[15] => GBP
[16] => 2.85
[17] =>
[18] =>
[19] => 0.00
[20] => 0.00
[21] => 2.49
[22] => 0
[23] => 5.88
[24] =>
[25] => 0.44
[26] => 4.9
[27] =>
[28] =>
[29] =>
[30] => John Smith
[31] => online
[32] => online_cc
[33] =>
[34] =>
)
)
当我想要/期望时..
Array
(
[1593608448] => Array
(
[0] => 03/25/20
[1] => Vinyl Decal Sticker
[2] =>
[3] => 1
[4] => 2.85
[5] =>
[6] =>
[7] => 0.00
[8] => 0.00
[9] => 2.49
[10] => 0
[11] => 2.85
[12] => GBP
[13] => 1829006957
[14] => 627718667
[15] => 03/25/2020
[16] => 03/25/2020
[17] => John Smith
[18] => Any Street
[19] =>
[20] => Somewhere
[21] => Someplace
[22] => PC0 DE
[23] => United Kingdom
[24] => 1593608448
[25] => Colour:Yellow
[26] => online
[27] => listing
[28] => online_cc
[29] =>
[30] =>
[31] => 0
[32] => 03/25/20
[33] => 1593608448
[34] =>
[35] => John Smith
[36] => John
[37] => Smith
[38] => 1
[39] => Credit Card
[40] => 03/25/20
[41] => Any Street
[42] =>
[43] => Somewhere
[44] => Someplace
[45] => PC 0DE
[46] => United Kingdom
[47] => GBP
[48] => 2.85
[49] =>
[50] =>
[51] => 0.00
[52] => 0.00
[53] => 2.49
[54] => 0
[55] => 5.88
[56] =>
[57] => 0.44
[58] => 4.9
[59] =>
[60] =>
[61] =>
[62] => John Smith
[63] => online
[64] => online_cc
[65] =>
[66] =>
)
)
所以保持订单 id（在 1 arr1 中始终为 [24]，在 arr2 中始终为 [2]）作为键，然后在 $arr1 中匹配键的末尾添加来自 $ 的匹配键的内容arr2 后面跟着数字。
我在这里查看了许多类似的问题和答案，但没有得到我需要的结果。 或者另一种说法是它会检查 [24] 和 [2] 是否匹配，然后追加到末尾
【问题讨论】：
-
对于未来的任何问题，请尝试生成minimal 示例。您的观点可以用不超过 2 或 3 个值的示例数组来说明。
-
@El_Vanja 注意到。
-
array_merge不是您想要的，如果您正确阅读了documentation。看起来您需要使用循环编写自定义函数。 -
您的最终结果是 2 个数组还是只是 1 个合并数组？
-
我认为它与使用的 previ 相似。类似于 foreach($csv, $csv2 as $key => $value){ if(!array_key_exists($value[1],$arr2)){ $arr2[$value[1]] = []; } $arr2[$value[1]] = array_merge($arr2[$value[1]],$value); } 但我真的不知道要改变什么。
标签： php arrays array-merge