I am using php 7.1 and have the following array:
However, I would simply like to have the following array:
array(3808, 3807, 3806, 3805)
Any suggestions how to convert it to array?
Appreciate your replies!
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1please provide the code you try toJulyano Felipe– Julyano Felipe2019-11-25 14:59:49 +00:00Commented Nov 25, 2019 at 14:59
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3Possible duplicate of php stdClass to arrayShardj– Shardj2019-11-25 15:00:12 +00:00Commented Nov 25, 2019 at 15:00
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1array_column($lastPostIDs, 'ID')splash58– splash582019-11-25 15:01:10 +00:00Commented Nov 25, 2019 at 15:01
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2 Answers
array_column() function will help:
$ids = array_column($records, 'ID');
print_r($ids);
Will output just array of ID's.
Check docs for it Docs
3 Comments
Carol.Kar
Thx! Any suggestion how to disassociate the array. I still get
0 => 3385 etc.
Misha Akopov
array_values() will return just array of values. Check it: php.net/manual/en/function.array-values.php . But 0=>3385 is ok because it is array and it should have indexes
mighty_dev
@Anna.Klee That's how an array is shown. It just says at 0th index you have 3385.
Convert the Object to an Array and use array_column to return an array of values from a specific key.
$a = (object) [
0 => [ 'ID' => 3808],
1 => [ 'ID' => 3807],
2 => [ 'ID' => 3806],
3 => [ 'ID' => 3805],
];
$b = array_column((array)$a, 'ID');
// $b = [3808,3807,3806,3805]
Note: (array)$a enforces Array conversion. Conversely, (object)$a will convert an Array to a stdClass Object.
5 Comments
mighty_dev
Apparently, the
(array)$a seems redundant in PHP's context.
seantunwin
@vivek_23 If the first parameter in
array_column is an Object you will get the error, 'array_column() expects parameter 1 to be array, object given in...'. You must convert an Object to an Array to use array_column.mighty_dev
I do know that. I said from OP's point of view and since he has an array of objects, the conversion again to an array is not needed. I meant more in terms of array_column() functioning since it usually deals with array of arrays instead of array of objects and correctly understands that
ID is a property of an object that exists and not some key in an array.mighty_dev
Bingo. It does check that via a switch case as shown here.
seantunwin
@vivek_23 I get you now. My mistake -- I misread the image as the other way around -- Object of Arrays, not Array of Objects as stated in the question.