Hey guys I'm confused about how to create an array using specific keys from my pre-existing array.
Laravel controller
public function index()
{
$content = Page::find(1)->content->toArray();
return View::make('frontend.services', compact('content'));
}
$content is an array that looks similar to
array (
0 => array (
'id' => '1',
'page_id' => '1',
'name' => 'banner_heading',
'content' => 'some content', ),
1 => array (
'id' => '2',
'page_id' => '1',
'name' => 'banner_text',
'content' => 'some other content' )
)
And I want it recreate this array to look like this
array (
0 => array (
'banner_heading' => 'some content'
),
1 => array (
'banner_text' => 'some other content'
)
)
How can I move the keys name and content to equal their values as a single row in the array?
I greatly appreciate any advice.
PHP >= 5.5.0:
$result = array_column($content, 'content', 'name');
PHP < 5.5.0:
foreach($content as $key => $array) {
$result[$key] = array($array['name'] => $array['content']);
}
You mean
$newContent = array();
foreach ($content as $record) {
$newContent[] = array($record['name'] => $record['content']);
}
?
I don't know Laravel, but i believe that your solutions should be similar to this :
$newArray= array();
foreach($content as $key => $value)
{
$newArray[] = $value["banner_heading"];
}
return View::make('frontend.services', compact('newArray'));
Or at least it should be something similar with this.
Related
My problem is i have a multidimensional array posting from form to php, now i want to checking if duplicate values of some indexes exist in multi dimensional array or not?
e.g:
$data=Array
(
0 => Array
(
uid => '100',
name => 'Sandra Shush',
type => 'abc'
),
1 => Array
(
uid => '101',
name => 'Sandra Shushtext',
type => 'xyz'
),
2 => Array
(
uid => '100',
name => 'Sandra Shush',
type => 'abc'
)
);
here name and type of index 1 and 2 are same, so how can i check it?
I am familiar with
$key = array_search('abc', array_column($data, 'type'));
but it is for duplication of single column value in multi rows, in my situation if multi column of same rows same with multi column of any other row then record will be consider as duplicate.
Any help should be appreciated, Thanks in advance.
You can try using array_reduce by creating a key using your desired item keys:
$result = array_reduce($data, function ($carry, $item) {
$key = $item['uid'] . $item['type'];
$item['is_duplicate'] = isset($carry[$key]);
if ($item['is_duplicate']) {
$carry[] = $item;
} else {
$carry[$key] = $item;
}
return $carry;
}, []);
var_dump($result);
The easiest way, well at least the one I would use is to encode your arrays into md5 (or any other kind) string and compare those values. I think it is the most efficient in your case.
Example:
<?php
function arrayToString($array) {
$str = '';
if ( !is_array($array) )
return $str;
foreach ( $array as $key => $val ) {
$str .= $key . ':' . $val;
}
return $str;
}
$data=Array
(
0 => Array
(
'uid' => '100',
'name' => 'Sandra Shush',
'type' => 'abc'
),
1 => Array
(
'uid' => '100',
'name' => 'Sandra Shush',
'type' => 'xyz'
),
2 => Array
(
'uid' => '100',
'name' => 'Sandra Shush',
'type' => 'abc'
)
);
$temp = array();
foreach ( $data as $d ) {
array_push($temp, md5(arrayToString($d)));
}
$unique = array_unique($temp);
var_dump($unique); // prints unique array
This is a very fast designed approach and will find duplicates. Note that duplicates are elements which have the same value for the same key. So if any of uid, name or type match, they will be treated as duplicates. Therefore I adjust the third array element, because all elements in your array share the same values.
$data = [
....
2 =>
[
'uid' => '200',
'name' => 'Mandra Shush',
'type' => 'abcx'
]
];
$duplicates = [];
$valuesToCompare = ["uid", "name", "type"];
function equals($value, $toCompare, $keysToCompare)
{
foreach ($keysToCompare as $compareKey) {
if ($value[$compareKey] === $toCompare[$compareKey]) {
return true;
}
}
return false;
}
foreach ($data as $index => $element) {
foreach ($data as $indexInner => $elementToCompare) {
if ($index !== $indexInner) {
if (equals($element, $elementToCompare, $valuesToCompare)) {
$duplicates[] = [$index => $indexInner];
}
}
}
}
var_dump($duplicates);
This will output the following, which indicates we found 2 duplicates. Where element 0 is duplicate of 1, and 1 is duplicate of 0.
array (size=2)
0 =>
array (size=1)
0 => int 1
1 =>
array (size=1)
1 => int 0
I achieved above scenario like this:
Dont know which one is best mine or other's who posted answers.
foreach($data as $key => $row)
{
$combinedarr[] = array("name"=>$row["name"],"type"=>$row["type"]);
}
//chck if same facilitiy is being visit on same date twice
$countcomb = count($combinedarr);
$uniquearr = array_unique($combinedarr, SORT_REGULAR);
if($countcomb==count($uniquearr)){
}else{
//yes duplicate exists
};
Thanks again for those who answered.
I want to delete array index which contain rating 0 here is my array
array(
(int) 0 => array(
'Gig' => array(
'id' => '1',
'rating' => (int) 5
)
),
(int) 1 => array(
'Gig' => array(
'id' => '3',
'rating' => (int) 9
)
),
(int) 2 => array(
'Gig' => array(
'id' => '4',
'rating' => '0'
)
)
)
and what I did
for($i = 0; $i<count($agetGigsItem); $i++)
{
if($agetGigsItem[$i]['Gig']['rating']==0)
{
unset($agetGigsItem[$i]);
}
$this->set('agetGigsItem', $agetGigsItem);
}
i also try foreach loop but unable to resolve this issue.
foreach ($agetGigsItem as $key => $value) {
if ($value["Gig"]["rating"] == 0) { unset($agetGigsItem[$key]); }
}
I think you need to reupdate your array.
foreach ($agetGigsItem as $key => $value) {
if ($value["Gig"]["rating"] != 0)
{
unset($agetGigsItem[$key]);
}
$this->set('agetGigsItem', $agetGigsItem);
}
I hope you are missing $this and so you cannot access the array in CakePHP.
So try this:
foreach ($this->$agetGigsItem as $key => $value) {
if ($value["Gig"]["rating"] == 0) {
unset($this->$agetGigsItem[$key]);
}
}
This code will unset arrey index with value 0.
<?php
$array=array(
array(
'Gig' => array(
'id' => '1',
'rating' =>5
)
),
array(
'Gig' => array(
'id' => '3',
'rating' =>9
)
),
array(
'Gig' => array(
'id' => '4',
'rating' =>0
)
)
);
foreach($array as $a){
if($a['Gig']['rating']==0){
unset($a['Gig']['rating']);
}
$array1[]=$a;
}
var_dump($array1);
Destroying occurances within an array you are actually processing over with a for or a foreach is always a bad idea. Each time you destroy an occurance the loop can easily get corrupted and get in a terrible mess.
If you want to remove items from an array it is better to create a copy of the array and process over that new array in the loop but remove the items from the original array.
So try this instead
$tmparray = $this->agetGigsItem; // will copy agetGigsItem into new array
foreach ($tmparray as $key => $value) {
if ($value["Gig"]["rating"] == 0) {
unset($this->agetGigsItem[$key]);
}
}
unset($tmparray);
I have an array that looks like this:
[0] => Array
(
[name] => typeOfMusic
[value] => this_music_choice
)
[1] => Array
(
[name] => myMusicChoice
[value] => 9
)
[2] => Array
(
[name] => myMusicChoice
[value] => 8
)
I would like to reform this into something with roughly the following structure:
Array(
"typeOfMusic" => "this_music_choice",
"myMusicChoice" => array(9, 8)
)
I have written the following but it doesn't work:
foreach($originalArray as $key => $value) {
if( !empty($return[$value["name"]]) ){
$return[$value["name"]][] = $value["value"];
} else {
$return[$value["name"]] = $value["value"];
}
}
return $return;
I've tried lots of different combinations to try and get this working. My original array could contain several sets of keys that need converting to arrays (i.e. it's not always going to be just "myMusicChoice" that needs converting to an array) ?
I'm getting nowhere with this and would appreciate a little help. Many thanks.
You just need to loop over the data and create a new array with the name/value. If you see a repeat name, then change the value into an array.
Something like this:
$return = array();
foreach($originalArray as $data){
if(!isset($return[$data['name']])){
// This is the first time we've seen this name,
// it's not in $return, so let's add it
$return[$data['name']] = $data['value'];
}
elseif(!is_array($return[$data['name']])){
// We've seen this key before, but it's not already an array
// let's convert it to an array
$return[$data['name']] = array($return[$data['name']], $data['value']);
}
else{
// We've seen this key before, so let's just add to the array
$return[$data['name']][] = $data['value'];
}
}
DEMO: https://eval.in/173852
Here's a clean solution, which uses array_reduce
$a = [
[
'name' => 'typeOfMusic',
'value' => 'this_music_choice'
],
[
'name' => 'myMusicChoice',
'value' => 9
],
[
'name' => 'myMusicChoice',
'value' => 8
]
];
$r = array_reduce($a, function(&$array, $item){
// Has this key been initialized yet?
if (empty($array[$item['name']])) {
$array[$item['name']] = [];
}
$array[$item['name']][] = $item['value'];
return $array;
}, []);
$arr = array(
0 => array(
'name' => 'typeOfMusic',
'value' => 'this_music_choice'
),
1 => array(
'name' => 'myMusicChoice',
'value' => 9
),
2 => array(
'name' => 'myMusicChoice',
'value' => 8
)
);
$newArr = array();
$name = 'name';
$value = 'value';
$x = 0;
foreach($arr as $row) {
if ($x == 0) {
$newArr[$row[$$name]] = $row[$$value];
} else {
if (! is_array($newArr[$row[$$name]])) {
$newArr[$row[$$name]] = array();
}
array_push($newArr[$row[$$name]], $row[$$value]);
}
$x++;
}
For example, I have multidimensional array as below:
$array = array (
0 =>
array (
'id' => '9',
'gallery_id' => '2',
'picture' => '56475832.jpg'
),
1 =>
array (
'id' => '8',
'gallery_id' => '2',
'picture' => '20083622.jpg'
),
2 =>
array (
'id' => '7',
'gallery_id' => '2',
'picture' => '89001465.jpg'
),
3 =>
array (
'id' => '6',
'gallery_id' => '2',
'picture' => '47360232.jpg'
),
4 =>
array (
'id' => '5',
'gallery_id' => '2',
'picture' => '4876713.jpg'
),
5 =>
array (
'id' => '4',
'gallery_id' => '2',
'picture' => '5447392.jpg'
),
6 =>
array (
'id' => '3',
'gallery_id' => '2',
'picture' => '95117187.jpg'
)
);
How can I get key of array(0,1,2,3,4,5,6)?
I have tried a lot of examples, but nothing has worked for me.
This is quite simple, you just need to use array_keys():
$keys = array_keys($array);
See it working
EDIT For your search task, this function should do the job:
function array_search_inner ($array, $attr, $val, $strict = FALSE) {
// Error is input array is not an array
if (!is_array($array)) return FALSE;
// Loop the array
foreach ($array as $key => $inner) {
// Error if inner item is not an array (you may want to remove this line)
if (!is_array($inner)) return FALSE;
// Skip entries where search key is not present
if (!isset($inner[$attr])) continue;
if ($strict) {
// Strict typing
if ($inner[$attr] === $val) return $key;
} else {
// Loose typing
if ($inner[$attr] == $val) return $key;
}
}
// We didn't find it
return NULL;
}
// Example usage
$key = array_search_inner($array, 'id', 9);
The fourth parameter $strict, if TRUE, will use strict type comparisons. So 9 will not work, you would have to pass '9', since the values are stored as strings. Returns the key of the first occurence of a match, NULL if the value is not found, or FALSE on error. make sure to use a strict comparison on the return value, since 0, NULL and FALSE are all possible return values and they will all evaluate to 0 if using loose integer comparisons.
Try this , I think it will help you.
foreach ($array as $key=>$value)
{
echo $key.'<br/>';
echo $value['id'].'<br/>';
echo $value['gallery_id'].'<br/>';
echo $value['picture'].'<br/><br/>';
}
sometimes it is to easy to find ;)
array_keys($array);
array_keys
Probably http://php.net/manual/en/function.array-keys.php ?
Convert your double dimensional array on your own:
$tmp = null
foreach($array as $key => $value) {
$tmp[] = $key;
}
print_r($tmp);
You mean something like this:
function getKeys($array)
{
$resultArr = array();
foreach($array as $subArr) {
$resultArr = array_merge($resultArr, $subArr);
}
return array_keys($resultArr);
}
This is the method I use to find the key of a requested item in an array,
$items = array
(
'0' => array
(
'mnu_id' => '1',
'pg_url' => 'home'
),
'1' => array
(
'mnu_id' => '5',
'pg_url' => 'about'
),
'2' => array
(
'mnu_id' => '6',
'pg_url' => 'venues'
)
);
So if I request the value of 'venues',
while ($current = current($items))
{
if ($current['pg_url'] == 'venues') {
$current_key = key($items);
}
next($items);
}
echo $current_key;
I get the key which is 2.
I don't really like this method as it is a bit lengthy and it confuses me when using while() to loop the array. I don't understand why I have to use next() in the code too!
I wonder if there are any better method than this to get the key?
foreach (array_keys($items) as $key) {
if ($items[$key]['pg_url'] == 'venues') {
$current_key = $key;
// optionally use a break here to escape the loop
}
}
Maybe this is a little easier to understand:
$current_key = -1;
foreach($items as $key => $item) {
if($item['pg_url'] == 'venues') {
$current_key = $key;
}
}
I don't know, what exactly you are trying to do, but it seems like you want to retrieve information from the array depending on the pg_url... if so, maybe it would be nicer to set the pg_url as key:
$items = array
(
'home' => array
(
'mnu_id' => '1'
),
'about' => array
(
'mnu_id' => '5'
),
'venues' => array
(
'mnu_id' => '6'
)
);
then you could simply check for
if(isset($items['venues'])) ...