24 votes
2 answers
php - How can I simplify this array?
Get the solution ↓↓↓
Solution:
You can use array_map.
PHP 5.3 or higher:
$callback = function($value) {
return $value['tag_id'];
};
$result = array_map($callback, $array);
Below 5.3:
function collapseTagIds($value) {
return $value['tag_id'];
}
$result = array_map('collapseTagIds', $array);
Undefined asked
562
votes
Answer
Solution:
Well, you could do this:
$new_array = array();
foreach($array as $key => $value)
{
$new_array[$key] = $value['tag_id'];
}
print_r($new_array);
652
votes
Answer
Solution:
In your case, you have just one index on$value. If you don't want to specify the index name just do it:
$new_array = array();
foreach($array as $key => $value) {
$new_array[$key] = reset($value);
}
print_r($new_array);
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Date the issue was resolved:
Link To Answer People are also looking for solutions of the problem: please make sure the php redis extension is installed and enabled.
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