Trying use array_unique but this did not help, since not all fields are repeated for me.
My array:
'Rows' =>
array (
0 =>
array (
'HotelId' => 94852,
'OfferId' => 858080496,
'OfferIdStr' => '858080496',
'Price' => 2762,
),
1 =>
array (
'HotelId' => 94852,
'OfferId' => 858080497,
'OfferIdStr' => '858080497',
'Price' => 3000,
),
And my try:
$allHotels['Rows'] = array_unique($allHotels['Rows'], SORT_REGULAR);
Changed flags, didn't help either (SORT_NORMAL, etc...).
It deletes absolutely everything, i need to ignore the HotelId replay, only first need.
If you want to delete duplicated entries based solely on the HotelId value, it's probably easiest just to iterate over the array, storing the seen HotelId values and deleting the current entry if it's HotelId value has already been seen.
$seenHotels = array();
foreach ($allHotels['Rows'] as $key => $hotel) {
if (in_array($hotel['HotelId'], $seenHotels)) {
unset($allHotels['Rows'][$key]);
}
else {
$seenHotels[] = $hotel['HotelId'];
}
}
print_r($allHotels);
Demo on 3v4l.org
Related
I have a large multidimensional array that looks like the below.
I want to remove duplicate arrays based on the ID, however, I am struggling to achieve this.
I want the duplicates to work over the entire array, so you can see that ID 1229873 is a duplicate, in the array 2021-07-07 and 2021-07-09, it should therefore be removed from 2021-07-09
How would I achieve this? array_unique has not worked for me.
$data = array (
'2021-07-07' =>
array (
0 =>
array (
'id' => 5435435,
'homeID' => 8754,
'match_url' => '/usa/reading-united-ac-vs-ocean-city-noreasters-fc-h2h-stats#1229873',
'competition_id' => 5808,
'matches_completed_minimum' => 12,
),
1 =>
array (
'id' => 1229873,
'homeID' => 8754,
'match_url' => '/usa/reading-united-ac-vs-ocean-city-noreasters-fc-h2h-stats#1229873',
'competition_id' => 5808,
'matches_completed_minimum' => 12,
),
),
'2021-07-09' =>
array (
0 =>
array (
'id' => 3243234,
'homeID' => 8754,
'match_url' => '/usa/reading-united-ac-vs-ocean-city-noreasters-fc-h2h-stats#1229873',
'competition_id' => 5808,
'matches_completed_minimum' => 12,
),
1 =>
array (
'id' => 1229873,
'homeID' => 8754,
'match_url' => '/usa/reading-united-ac-vs-ocean-city-noreasters-fc-h2h-stats#1229873',
'competition_id' => 5808,
'matches_completed_minimum' => 12,
),
),
);
This is a perfect case for array_uunique()! No wait, scratch that. The PHP devs refused to implement it for the perfectly valid reason of... [shuffles notes] "the function name looks like a typo".
[sets notes on fire]
Anyhow, you just need to iterate over that data, keep track of the IDs you've seen, and remove entries that you've already seen.
$seen = [];
foreach(array_keys($data) as $i) {
foreach(array_keys($data[$i]) as $j) {
$id = $data[$i][$j]['id'];
if( in_array($id, $seen) ) {
unset($data[$i][$j]);
} else {
$seen[] = $id;
}
}
}
I've opted for the foreach(array_keys(...) as $x) approach as avoiding PHP references is always the sane choice.
Run it.
I am Sure That is the way which you want to get the unique array.
$unique = array_map("unserialize", array_unique(array_map("serialize", $data)));
echo "<pre>";
print_r($unique);
echo "</pre>";
First, I have to say I already checked some answers but neither it wasn't exactly what I was looking for neither I couldn't fully understand the answer and how to use it.
I have this MultiDimensional array:
Array
(
[field_5abcb693a68bc] => Array
(
[0] => Array
(
[field_5abcbb1b51ddf] => mortgage
[field_5ae58a0b58b58] =>
[field_5abcbb1e51de0] => 10
[field_5abcbb2051de1] => הידגלה
[field_5abcbb2351de2] => 45,654,456
[field_5abcbb6251de3] =>
[field_5abcbb6651de4] => 04/2017
[field_5abcbb6851de5] => 4,454,656
[field_5abcbb6b51de6] => 24/07/2018
[field_5abcbbb351de7] => 657
[field_5abcbbb651de8] => 24/07/2018
[field_5abcbbb851de9] => 15
[field_5abcbbbb51dea] => yes
)
)
)
And I want to find values that much the pattern of mm/yyyy. Regex is a good option, I know how to write the condition:
if ( preg_match('/^\d[1-9]\/[1-9][0-9][0-9][0-9]$/',$v) ) {
//do stuff
}
I want to look in the inner part of the array for this pattern, and if it is a match, to change the value in the array to
$value = '01/' . $value;
means the value '04/2017' changes to '01/04/2017'.
note: there can be more than one value to change.
note: the name of the first array within the array [field_5abcb693a68bc] can vary and won't stay the same in other cases.
Thanks.
Use array_walk_recursive with reference to value as argument instead of regular value argument of callback.
It would work like that:
array_walk_recursive(
$array,
function (&$value) {
if (preg_match('/^\d[1-9]\/[1-9][0-9][0-9][0-9]$/',$value)) {
$value = '01/' . $value;
}
}
);
Check result on 3v4l.org
You want to perform a conditional replacement using a regex pattern? preg_replace() seems sensible. preg_replace() is happy to iterate a one-dimensional array, so the lowest level can be directly served to it.
Notice that I've changed the pattern delimiter to avoid escaping the forward slash. I've also made the pattern more brief by using \d and the {3} quantifier. $0 means the "fullstring match". You don't have to write the unset() call to purge those temporary variables, but some developers consider it to be best practice because it avoids potential variable conflict down-script.
Code: (Demo)
$array = [
'field_5abcb693a68bc' => [
0 => [
'field_5abcbb1b51ddf' => 'mortgage',
'field_5ae58a0b58b58' => '',
'field_5abcbb1e51de0' => '10',
'field_5abcbb2051de1' => 'הידגלה',
'field_5abcbb2351de2' => '45,654,456',
'field_5abcbb6251de3' => '',
'field_5abcbb6651de4' => '04/2017',
'field_5abcbb6851de5' => '4,454,656',
'field_5abcbb6b51de6' => '24/07/2018',
'field_5abcbbb351de7' => '657',
'field_5abcbbb651de8' => '24/07/2018',
'field_5abcbbb851de9' => '15',
'field_5abcbbbb51dea' => 'yes'
]
]
];
foreach ($array as &$set) {
foreach ($set as &$subset) {
$subset = preg_replace('~^\d[1-9]/[1-9]\d{3}$~', '01/$0', $subset);
}
}
unset($set, $subset); // avoid future variable interferences
var_export($array);
Output:
array (
'field_5abcb693a68bc' =>
array (
0 =>
array (
'field_5abcbb1b51ddf' => 'mortgage',
'field_5ae58a0b58b58' => '',
'field_5abcbb1e51de0' => '10',
'field_5abcbb2051de1' => 'הידגלה',
'field_5abcbb2351de2' => '45,654,456',
'field_5abcbb6251de3' => '',
'field_5abcbb6651de4' => '01/04/2017',
'field_5abcbb6851de5' => '4,454,656',
'field_5abcbb6b51de6' => '24/07/2018',
'field_5abcbbb351de7' => '657',
'field_5abcbbb651de8' => '24/07/2018',
'field_5abcbbb851de9' => '15',
'field_5abcbbbb51dea' => 'yes',
),
),
)
You can anonymously process down the levels of the array without actually knowing any of the names of the keys like this for example
foreach ($arr as $key => &$outer) {
foreach ($outer as &$inner) {
foreach ($inner as $k => $v) {
if ( preg_match('/^\d[1-9]\/[1-9][0-9][0-9][0-9]$/',$v) ) {
$inner[$k] = '01/' . $v;
}
}
}
}
Working with an array file with following structure. I know there are additional arrays that need to be inserted under each array 'color'.
$items=array (
0 =>
array (
'color' => 'category_a',
),
1 =>
array (
'book' => 'Gone With The Wind',
'movie' => 'GWTW',
'id'=> 'A100'
),
2 =>
array (
'book' => 'Goldfinger',
'movie' => 'GF',
'id'=> 'A103'
),
3 =>
array (
'color' => 'category_b',
),
4 =>
array (
'book' => 'Across The Great Dvide',
'movie' => 'ATGD',
'id'=> 'B102'
),
5 =>
array (
'book' => 'Goldfinger',
'movie' => 'GF',
'id'=> 'B103'
),
);
Once this array is created, I am using a list to loop thru to verify that each value in the list is placed in each 'color' array as follows
foreach ($controllist as $key=>$value){
foreach($items as $item){
if(in_array($value['book'],$item){
echo "PRESENT IN ARRAY"."<BR>";
}else{
echo "INSERT INTO ARRAY HERE"."<BR>";
}
}
}
For simplicity my controllist looks like
Gone With The wind
Across The Great Divide
Goldfinger
Once complete I should end up with the info for Across The Great Divide inserted into 'color'=> 'category a' as the [2] with Goldfinger moving down one. In 'color'=>category_b' the first array should be Gone With The Wind. Any of the 'color' arrays could be missing an array at any position. To sum it up, need to check for the existence of a value from the list, if not present insert into the array. Other than using the foreach loops shown is there an easier way of doing this? If not how can I get the information inserted into the proper position?
Thanks
EDIT:
I believe the question may not be clear. What I need to do is check for the existence of one array in another. If the value in conrollist is not present in the array, insert an array into the array according the position in the conrollist. The inserted array will have the same structure as the others (I can take care of this part). I am having trouble determining if it exist and if not inserting it. Hope this helps
You might want to be using a for loop instead so you have a pointer on each iteration in order to determine where you are in the array.
foreach($items as $item){
for($i = 0; $i < count($controllist); $i++) {
if(in_array($controllist[$i]['book'],$item){
echo "PRESENT IN ARRAY AT POS ".$i."<BR>";
}else{
$controllist[$i]['book'] = $yourvar;
echo "INSERT INTO ARRAY HERE"."<BR>";
}
}
}
I have two associative arrays in PHP that are defined as following:
$this_week[] = array(
"top_song_id" => $row["view_song_id"],
"top_place" => $i,
"top_move" => "0",
"top_last" => $i,
"top_peak" => $i,
"top_rating" => get_song_rating_by_id($row["view_song_id"]),
"top_views" => $row["view_sum"],
"top_start" => $monday,
"top_end" => $sunday
);
and
$last_week[] = array(
"top_song_id" => $row["view_song_id"],
"top_place" => get_song_place_by_id($row["view_song_id"]),
"top_move" => "0",
"top_last" => get_song_last_by_id($row["view_song_id"]),
"top_peak" => get_song_peak_by_id($row["view_song_id"]),
"top_rating" => get_song_rating_by_id($row["view_song_id"]),
"top_views" => $row["view_sum"],
"top_start" => $prev_monday,
"top_end" => $prev_sunday
);
Now here is my question: how can I traverse this two arrays and perform an action if there is any song id in one array that can be found in the other one?
A for() loop doesn't work because there can be common songs for both arrays but not on the same array index.
Any help is appreciated.
An efficient way to do this is to just change the first line of the last snippet this way:
$last_week[$row["view_song_id"]] = array( // Added the song id as the array index
"top_song_id" => $row["view_song_id"],
...
After that you can use a simple for loop this way:
for ($this_week as $item) {
if ( isset ($last_week[ $item["top_song_id"] ]) ) {
// HERE YOU HAVE FOUND A DUPLICATE
}
}
if( in_array( $this_week["top_song_id"], $last_week ) ) {
//do something
}
Why not just hardcode the 5(?) comparisons you need in one if statement? No need to overcomplicate things.
I would like to retrieve the first key from this multi-dimensional array.
Array
(
[User] => Array
(
[id] => 2
[firstname] => first
[lastname] => last
[phone] => 123-1456
[email] =>
[website] =>
[group_id] => 1
[company_id] => 1
)
)
This array is stored in $this->data.
Right now I am using key($this->data) which retrieves 'User' as it should but this doesn't feel like the correct way to reach the result.
Are there any other ways to retrieve this result?
Thanks
There are other ways of doing it but nothing as quick and as short as using key(). Every other usage is for getting all keys. For example, all of these will return the first key in an array:
$keys=array_keys($this->data);
echo $keys[0]; //prints first key
foreach ($this->data as $key => $value)
{
echo $key;
break;
}
As you can see both are sloppy.
If you want a oneliner, but you want to protect yourself from accidentally getting the wrong key if the iterator is not on the first element, try this:
reset($this->data);
reset():
reset() rewinds array 's internal
pointer to the first element and
returns the value of the first array
element.
But what you're doing looks fine to me. There is a function that does exactly what you want in one line; what else could you want?
Use this (PHP 5.5+):
echo reset(array_column($this->data, 'id'));
I had a similar problem to solve and was pleased to find this post. However, the solutions provided only works for 2 levels and do not work for a multi-dimensional array with any number of levels. I needed a solution that could work for an array with any dimension and could find the first keys of each level.
After a bit of work I found a solution that may be useful to someone else and therefore I included my solution as part of this post.
Here is a sample start array:
$myArray = array(
'referrer' => array(
'week' => array(
'201901' => array(
'Internal' => array(
'page' => array(
'number' => 201,
'visits' => 5
)
),
'External' => array(
'page' => array(
'number' => 121,
'visits' => 1
)
),
),
'201902' => array(
'Social' => array(
'page' => array(
'number' => 921,
'visits' => 100
)
),
'External' => array(
'page' => array(
'number' => 88,
'visits' => 4
)
),
)
)
)
);
As this function needs to display all the fist keys whatever the dimension of the array, this suggested a recursive function and my function looks like this:
function getFirstKeys($arr){
$keys = '';
reset($arr);
$key = key($arr);
$arr1 = $arr[$key];
if (is_array($arr1)){
$keys .= $key . '|'. getFirstKeys($arr1);
} else {
$keys = $key;
}
return $keys;
}
When the function is called using the code:
$xx = getFirstKeys($myArray);
echo '<h4>Get First Keys</h4>';
echo '<li>The keys are: '.$xx.'</li>';
the output is:
Get First Keys
The keys are: referrer|week|201901|Internal|page|number
I hope this saves someone a bit of time should they encounter a similar problem.