php 数组合并未给出 expected/desired 结果
php array merge not giving expected/desired results
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] =>
)
)
我试图将这些数组与..
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wanted/expected..
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] =>
)
)
因此，将订单 ID（在 1 arr1 中始终为 [24]，在 arr2 中始终为 [2]）作为键，然后将匹配键的内容添加到 $arr1 中匹配键的末尾来自 $arr2，紧随其后的是数字。
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。
或者另一种表达方式是检查 [24] 和 [2] 是否匹配，然后附加到末尾
使用array_merge_recursive代替array_merge
$merged = array_merge_recursive($arr,$arr2);
最好边读边合并数据。我打算更改您的读取，以便它在创建数组时读取 CSV，但我保留了 readCSV() 原样 - 除了添加 array_filter() 以删除空元素。
我没有创建两个数组然后合并它们，而是更改了第二个 CSV 循环以检查 $arr 并在此时添加数据...
function readCSV($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);
$line_of_text = array_filter($line_of_text);
return $line_of_text;
}
$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]],$value);
}
foreach($csv2 as $key => $value){
if(!array_key_exists($value[1],$arr)){
$arr[$value[1]] = [];
}
$arr[$value[1]] = array_merge($arr[$value[1]],$value);
}
echo '<pre>';
print_r($arr);
echo '</pre>';
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 ($arr2)
Array
(
[1593608448] => Array
(
[0] => 03/25/20
[1] => 1593608448
[2] =>
[3] => John Smith
[4] => John
[5] => Smith
[6] => 1
[7] => Credit Card
[8] => 03/25/20
[9] => Any Street
[10] =>
[11] => Somewhere
[12] => Someplace
[13] => PC 0DE
[14] => United Kingdom
[15] => GBP
[16] => 2.85
[17] =>
[18] =>
[19] => 0.00
[20] => 0.00
[21] => 2.49
[22] => 0
[23] => 5.88
[24] =>
[25] => 0.44
[26] => 4.9
[27] =>
[28] =>
[29] =>
[30] => John Smith
[31] => online
[32] => online_cc
[33] =>
[34] =>
)
)
我试图将这些数组与..
合并$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wanted/expected..
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] =>
)
)
因此，将订单 ID（在 1 arr1 中始终为 [24]，在 arr2 中始终为 [2]）作为键，然后将匹配键的内容添加到 $arr1 中匹配键的末尾来自 $arr2，紧随其后的是数字。
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。 或者另一种表达方式是检查 [24] 和 [2] 是否匹配，然后附加到末尾
使用array_merge_recursive代替array_merge
$merged = array_merge_recursive($arr,$arr2);
最好边读边合并数据。我打算更改您的读取，以便它在创建数组时读取 CSV，但我保留了 readCSV() 原样 - 除了添加 array_filter() 以删除空元素。
我没有创建两个数组然后合并它们，而是更改了第二个 CSV 循环以检查 $arr 并在此时添加数据...
function readCSV($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);
$line_of_text = array_filter($line_of_text);
return $line_of_text;
}
$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]],$value);
}
foreach($csv2 as $key => $value){
if(!array_key_exists($value[1],$arr)){
$arr[$value[1]] = [];
}
$arr[$value[1]] = array_merge($arr[$value[1]],$value);
}
echo '<pre>';
print_r($arr);
echo '</pre>';