I have a $date array like this:
[1]=> array(11) {
["meetingname"]=> string(33) "win2008connectcurrent0423131"
[0]=> array(3) {
["scoid"]=> string(7) "3557012"
["datecreated"]=> string(19) "2013-05-23 10:02:39"
["numparticipants"]=> string(1) "3"
}
[1]=> array(3) {
["scoid"]=> string(7) "3557012"
["datecreated"]=> string(19) "2013-05-23 14:40:06"
["numparticipants"]=> string(1) "3"
}
}
foreach($date[0] as $key => $meetings){
print "$key = $meetings\n";////yields scoid = 3557012
}
And, as you can see above, I am looping over individual elements. The first element (not indexed) is always meetingname; the rest of the elements are indexed and themselves contain arrays with three elements in each array--in the above code they are [0] and [1].
What I need to do is make the $meetings as an array containing [0] and then [1] etc, depending on the number of elements. So essentially, the output for print should be an array (I can also use var_dump) with key/values of [0] but right not it only outputs individual keys and their values, for example, as you can see above, scoid=3557012. I will need, something all keys/values in the $meetings variable, something like:
{
["scoid"]=> string(7) "3557012"
["datecreated"]=> string(19) "2013-05-23 10:02:39"
["numparticipants"]=> string(1) "3"
}
How can I fix the foreach loop for that?
please Try this. hope it help.
foreach($date as $key => $meetings){
if($key == "meetingname")
continue;
else
print "$meetings\n";
}
You can just create a new array and add the meetings to that one
<?php
$meetings = array();
foreach($date[1] as $key=>$meeting) {
if (!is_int($key))
continue; //only handle numeric keys, incase you ever change the name of the first key 'meetingname'
$meetings[] = $meeting
}
var_dump($meetings);
?>
Related
I have two array and want to merge it by using key of main array;
// $result : main dataset (multidimensional array)
// $referenceData : data related with main dataset and want to merge it into main dataset (multidimensional array)
if ($result) {
foreach ($result as $key => $val) {
foreach ($referenceData[$val['id']] as $refKey => $refVal) {
$result[$key][$refKey] = $refVal;
}
}
}
The thing is, when the result is high (even for 1000 elements on each) it takes more than 5-10 seconds which is quite unexpected for me.
I tried to use array_merge and array_merge_recursive instead of two foreach but I kept failing. Is there any way I could improve the logic? Thanks in advance.
Edit (added sample array);
result :
array(1) {
[0]=>
array(6) {
["id"]=>
string(5) "13020"
["name"]=>
string(23) "Data Stream 1"
["rank"]=>
string(1) "3"
["data_1"]=>
string(2) "63"
["data_2"]=>
string(2) "256"
["data_3"]=>
string(3) "469"
}
}
referenceData:
array(1) {
[13020]=>
array(5) {
["percent"]=>
float(20.987654320988)
["count_min"]=>
string(1) "1"
["count_max"]=>
int(2)
["checked"]=>
bool(false)
["cond_id"]=>
string(1) "0"
}
}
You need to make the first array structure exactly like the second array so that you can easily merge them. To do so you can do like below : (Its a reference code, you need to change it at your end)
$rows = $db->table('<table name>')->get()->getResultArray();
$result = [];
foreach ($rows as $row) {
$result[$row['id']] = $row;
}
Once both arrays have a similar structure, then you can go for a single foreach() and + operator to combine child arrays.
$finalArray = [];
foreach($result as $key=>$value){
$finalArray[$key] = $value+$referenceData[$key];
}
print_r($finalArray);
Output: https://3v4l.org/qBa4V
Note: if you want to re-index this new array (in case you want indexes like 0,1,2... so on) then you can do:
$finalArray = array_values($finalArray);
I'm trying to create an anchor link by extracting specific array values based upon based upon the key. I've tried using a foreach loop inside of a for loop, however that doesn't seem to work.
Based upon the below multidimensional array how can I loop through each subarray to create individual anchor links, such as:
Example:
/* Array Example */
array(3) {
[0]=>
array(2) {
["#attributes"]=>
array(1) {
["id"] => string(1) "2"
}
["name"]=> string(10) "Mark"
}
[1]=>
array(2) {
["#attributes"]=>
array(1) {
["id"]=> string(1) "4"
}
["name"]=> string(8) "John"
}
[2]=>
array(2) {
["#attributes"]=>
array(1) {
["id"]=> string(1) "5"
}
["name"]=> string(10) "Suzy"
}
/* Desired Output */
Mark
John
Suzy
Let's assume the array you posted is the content of a variable called $users. You can walk through it by doing
foreach ($users as $usr)
{
$usr['#attributes']['id'];
$usr['name'];
}
This way, you can go through every node without worrying about the indexes.
You may output the link on each foreach iteration in several ways. A complete example (which allows to use HTML without escaping every special character) could be:
<?php
foreach ($users as $usr)
{ ?>
<?php echo $usr['name']; ?>
<?php } ?>
While it looks complex, with a lot of PHP opening and closing tags, it makes it easier on the markup with almost no performance penalty
You can use either ways: ($array is your array)
$names = array_column($array, 'name');
$ids = array_map(function($ele){return $ele['#attributes']['id'];}, $array);
I've got this array:
array(1) {
["sensory-evaluation"]=> array(6) {
["name"]=> string(18) "Sensory Evaluation"
["value"]=> string(43) "10/22/2015 at 6:00pm | 11/25/2015 at 6:00pm"
["position"]=> string(1) "3"
["is_visible"]=> int(1)
["is_variation"]=> int(1)
["is_taxonomy"]=> int(0)
}
}
I need to be able to get the data from ["value"]. If I do $arr["sensory-evaluation"]["value"] I can get it but the problem is ["sensory-evaluation"] will be different for each element in my array so I need a way to abstract that part but I haven't been able to figure it out.
If you have only one item in the array as you show then:
echo current($arr)['value'];
If you don't know if it exists:
if(isset(current($arr)['value'])) {
echo current($arr)['value'];
}
You could also do:
echo array_values($arr)[0]['value'];
why not use a for each
function getValue($arr){
foreach ($arr as $key => $value) {
var $subArray=$arr[$key];
if( array_key_exists ('value' ,$subArray))
return $arr[$key]['value'];
}
}
Hello I am looking for some help with removing an element from an array. My array $rooms holds events per rooms. Each room has its own array and each event has its own array within the room array. I loop through $rooms and display the room ID and within this loop I loop through the events for that room and display their contents. I would like to remove the array for the event that has been displayed so I don't have spend time comparing it when I repeat the same loop.
Below is an example of the process I am describing. I know it makes no sense to delete the element in this logic as I am using foreach, but within my application the logic of the function requires it..
$rooms
array(3)
{
[1]=> array(2)
{
["rid"]=> string(1) "1"
["events"]=> array(0)
{ }
}
[2]=> array(2)
{
["rid"]=> string(1) "2"
["events"]=> array(0)
{ }
}
[3]=> array(2)
{
["rid"]=> string(1) "3"
["events"]=> array(2)
{
[0]=> array(7)
{
["lname"]=> string(20) "xxxxxxxxxxxxxxxxxxxx"
}
[1]=> array(7)
{
["lname"]=> string(10) "yyyyyyyyyy"
}
}
}
}
loop
foreach ($rooms as $room):
echo $room['rid'];
foreach ($room['events'] as $event):
echo $event['lname'];
If you could tell me where within the foreach I should put the code and how should the code look like that would be really great. I think it should be right after echo $event['lname'], but I can't figure out how to locate the element that is displayed so I can unset it..
Thank you all for reading,
looking forward to your replies.
You can simply unset the event after echoing it, but you'll need to reference it from $rooms, so you need to use the key's at each level. Try this:
foreach($rooms as $i => $room) {
echo $room['rid'];
foreach($room['events'] as $j => $event) {
echo $event['lname'];
unset($rooms[$i]['events'][$j]);
}
}
You can see an example of it working here.
So I need to modify the array in a memcached key-value pair. I need to remove one of the arrays inside the array. An example of what it looks like:
array(2) { [0]=> array(3) { ["username"]=> string(3) "Bob" ["id"]=> string(5) "14537" ["comment"]=> string(4) "cool"} [1]=> array(3) { ["username"]=> string(3) "Tom" ["id"]=> string(5) "14538" ["comment"]=> string(3) "yes"}}
If I know the values of username, id, and comment, how can I delete it? The generic queston: How can I delete array 0?
Considering the answer of doing a foreach loop, I tried
foreach($memcachedarray as $f){
if ($f['id'] == '14537'){
echo key($f);
}
}
But it spits out username
Edit- Ok
I searched some more and found I need to do this:
foreach($memcachedarray as $key => $f){
if ($f['id'] == '14537'){
echo $key;
}
}
That works!
If the Id's are unique across the system then you could use an associative array to store you data then unset the key, otherwise you would want to use a foreach loop to get the array key, then unset that key and recommit your new array back into memcache.