我在 foreach 回圈中有以下陣列，我想合并陣列值（用逗號附加），其中“鍵值”（column_name，match，coll）相同/重復。簡而言之，我想組合重復的陣列值。我怎樣才能做到這一點？這是我當前的陣列
Array
(
[id] => 86
[column_name] => Accommodation
[text] => hotel
[match] => 2
[coll] => 1
)
Array
(
[id] => 87
[column_name] => Accommodation
[text] => staff
[match] => 2
[coll] => 1
)
Array
(
[id] => 91
[column_name] => Accommodation
[text] => marriot
[match] => 3
[coll] => 1
)
我的預期結果：
Array
(
[id] => 86
[column_name] => Accommodation
[text] => hotel staff
[match] => 2
[coll] => 1
)
Array
(
[id] => 91
[column_name] => Accommodation
[text] => marriot
[match] => 3
[coll] => 1
)
嘗試使用以下代碼：
foreach ($result as $key =>$element) {
if($element['column_name'] == 'Accommodation'){
echo "<pre>";print_R($element);
}
}
uj5u.com熱心網友回復：
對于每個條目，生成鍵（我使用的是零字符連接值），并填充輸出陣列，text如果具有這樣鍵的條目已經存在，則附加：
<?php
$input = [
[
'id' => 86,
'column_name' => 'Accommodation',
'text' => 'hotel',
'match' => 2,
'coll' => 1,
],
[
'id' => 87,
'column_name' => 'Accommodation',
'text' => 'staff',
'match' => 2,
'coll' => 1,
],
[
'id' => 91,
'column_name' => 'Accommodation',
'text' => 'marriot',
'match' => 3,
'coll' => 1,
],
];
$output = [];
foreach( $input as $entry ){
$key = implode("\0",[$entry['column_name'],$entry['match'],$entry['coll']]);
// No such entry yet
if( empty( $output[$key] ) )
$output[ $key ] = $entry;
// This is a duplicate, appending text
else
$output[ $key ]['text'] .= ' ' . $entry['text'];
}
print_r( array_values($output) );
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標籤：php数组多维数组
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