I have this array structure:
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
[0] => 3005874934
[1] => 849804558
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
[0] => 1146384946984079360
[1] => 1006718040
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
[0] => 322672692
[1] => 590166675
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
Array
(
[ids] => Array
(
)
[next_cursor] => 0
[next_cursor_str] => 0
[previous_cursor] => 0
[previous_cursor_str] => 0
[total_count] =>
)
I'd like to take all of the values within the [ids] nested arrays and put them in a single separate array, so it looks like this:
Array
(
[0] => 3005874934
[1] => 849804558
[2] => 1146384946984079360
[3] => 1006718040
[4] => 322672692
[5] => 590166675
)
Here's my current attempt:
$retweeter_ids = array(); // create new empty array
foreach ($retweeters as $row) { // N.B. $retweeters contains the data in the first snippet
if (!empty($row)) {
$retweeter_ids[] = $row;
}
}
However, this outputs in three separate arrays:
Array
(
[0] => Array
(
[0] => 3005874934
[1] => 849804558
)
[1] => Array
(
[0] => 1146384946984079360
[1] => 1006718040
)
[2] => Array
(
[0] => 322672692
[1] => 590166675
)
)
Where am I going wrong?
CodePudding user response：
array_column will get everything from the ids columns, then just merge them (if they are empty it won't matter):
$retweeter_ids = array_merge(...array_column($retweeters, 'ids'));
To use your loop, just merge them:
$retweeter_ids = [];
foreach ($retweeters as $row) {
$retweeter_ids = array_merge($retweeter_ids, $row['ids']);
}
CodePudding user response：
Not tested but $row is an array, so you might use
foreach ($retweeters as $row) { // N.B. $retweeters contains the data in the first snippet
if (!empty($row)) {
foreach ($row as $item)
$retweeter_ids[] = $item;
}
}
CodePudding user response：
In case you are using PHP 7.4 , you could solve it with a mix of array_merge and spread operator on array
https://www.php.net/manual/ro/function.array-merge.php https://wiki.php.net/rfc/spread_operator_for_array
$retweeters = [
[
'ids' => [
3005874934,
849804558
],
'next_cursor' => 0,
'next_cursor_str' => 0,
'previous_cursor' => 0,
'previous_cursor_str' => 0,
'total_count' => 0
],
[
'ids' => [
1146384946984079360,
1006718040
],
'next_cursor' => 0,
'next_cursor_str' => 0,
'previous_cursor' => 0,
'previous_cursor_str' => 0,
'total_count' => 0
]
];
$ids = array_merge(...array_map(function($set) {
return $set['ids'] ?? [];
}, $retweeters));
print_r($ids);
This will result in:
Array
(
[0] => 3005874934
[1] => 849804558
[2] => 1146384946984079360
[3] => 1006718040
)