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I need to modify the data structure of json array list as per some key value using PHP. I am explaining my code below.
<?php
$output=array(
array(
"first_name"=>"robin",
"last_name"=>"sahoo",
"reg_no"=>12,
"paper_code"=>"BA001"
),array(
"first_name"=>"robin",
"last_name"=>"sahoo",
"reg_no"=>12,
"paper_code"=>"BA002"
),array(
"first_name"=>"Rama",
"last_name"=>"Nayidu",
"reg_no"=>13,
"paper_code"=>"BA001"
)
);
//echo json_encode($output);
$result=array();
foreach ($output as $key => $value) {
if (count($result)==0) {
$result[]=array(
"name"=>$value["first_name"].' '.$value['last_name'],
"reg_no"=>$value['reg_no'],
"paper1"=>$value['paper_code'],
"paper2"=>"",
"paper3"=>"",
"paper4"=>""
);
}
}
The output of the input array is given below.
// Output:
[
{
"first_name":"robin",
"last_name":"sahoo",
"reg_no":12,
"paper_code":"BA001"
},
{
"first_name":"robin",
"last_name":"sahoo",
"reg_no":12,
"paper_code":"BA002"
},
{
"first_name":"Rama",
"last_name":"Nayidu",
"reg_no":13,
"paper_code":"BA001"
}
];
The above is my array list. Here I need to modify the all row value by reg_no means if there are multiple rows including same reg_no then those will merge with joining the both name and my expected output should like below.
expected output:
[
{
'name':"robin sahoo",
"reg_no":12,
"paper1":"BA001",
"paper2":"BA002",
"paper3":"",
"paper4":""
},
{
'name':"Rama Nayidu",
"reg_no":13,
"paper1":"BA001",
"paper2":"",
"paper3":"",
"paper4":""
}
]
Here paper1,paper2,paper3,paper4 will be selected serially means suppose same reg_no=12 has first row paper_code= BA001 then it will be paper1=BA001 and second row paper_code=BA002 then it will be paper2=BA002 and so on. Here I am using PHP to map this array.
Try the following, Let me know..
$output=array(array("first_name"=>"robin","last_name"=>"sahoo","reg_no"=>12,"paper_code"=>"BA001"),array("first_name"=>"robin","last_name"=>"sahoo","reg_no"=>12,"paper_code"=>"BA002"),array("first_name"=>"Rama","last_name"=>"Nayidu","reg_no"=>13,"paper_code"=>"BA001"));
//echo json_encode($output);
$result=array();
$temp=array();
if(!empty($output)){
foreach ($output as $key => $value) {
if(isset($temp[$value['reg_no']])){
if(empty($temp[$value['reg_no']]["paper1"]) || $temp[$value['reg_no']]["paper1"] == ""){
$temp[$value['reg_no']]["paper1"] = $value['paper_code'];
}else if(empty($temp[$value['reg_no']]["paper2"]) || $temp[$value['reg_no']]["paper2"] == ""){
$temp[$value['reg_no']]["paper2"] = $value['paper_code'];
}else if(empty($temp[$value['reg_no']]["paper3"]) || $temp[$value['reg_no']]["paper3"] == ""){
$temp[$value['reg_no']]["paper3"] = $value['paper_code'];
}else if(empty($temp[$value['reg_no']]["paper4"]) || $temp[$value['reg_no']]["paper4"] == ""){
$temp[$value['reg_no']]["paper4"] = $value['paper_code'];
}
}else{
$temp[$value['reg_no']] = array("name"=>$value["first_name"].' '.$value['last_name'],"reg_no"=>$value['reg_no'],"paper1"=>$value['paper_code'],"paper2"=>"","paper3"=>"","paper4"=>"");
}
}
}
if(!empty($temp)){
foreach ($temp as $key => $value) {
$result[] = $value;
}
}
This Code May help you
<?php
$output=array(array("first_name"=>"robin","last_name"=>"sahoo","reg_no"=>12,"paper_code"=>"BA001"),array("first_name"=>"robin","last_name"=>"sahoo","reg_no"=>12,"paper_code"=>"BA002"),array("first_name"=>"Rama","last_name"=>"Nayidu","reg_no"=>13,"paper_code"=>"BA001"));
//echo json_encode($output);
$result=array();
foreach ($output as $key => $value) {
if (count($result)==0) {
$output[$key]=array("name"=>$value["first_name"].' '.$value['last_name'],"reg_no"=>$value['reg_no'],"paper1"=>$value['paper_code'],"paper2"=>"","paper3"=>"","paper4"=>"");
}
}echo "<pre>";print_r($output);
?>
You can try with this
$result = []; // Initialize result array
foreach ($output as $key => $value) {
$name = $value['first_name'] . ' ' . $value['last_name'];
// check if same name already has entry, create one if not
if (!array_key_exists($name, $result)) {
$result[$name] = array(
'name' => $name,
'reg_no' => $value['reg_no'],
'paper1' => '',
'paper2' => '',
'paper3' => '',
'paper4' => ''
);
}
// count array elements with value, then set paper number and value
$paper = 'paper' . (count(array_filter($result[$name])) - 1);
$result[$name][$paper] = $value['paper_code'];
}
$result = array_values($result); // reindex result array
$result = json_encode($result); // Encode to json format
print_r($result); // print result
This assumes that first_name and last_name is always same for each reg_no
I have this general data structure:
$levels = array('country', 'state', 'city', 'location');
I have data that looks like this:
$locations = array(
1 => array('country'=>'USA', 'state'=>'New York', 'city'=>'NYC', 'location'=>'Central Park', 'count'=>123),
2 => array('country'=>'Germany', ... )
);
I want to create hierarchical arrays such as
$hierarchy = array(
'USA' => array(
'New York' => array(
'NYC' => array(
'Central Park' => 123,
),
),
),
'Germany' => array(...),
);
Generally I would just create it like this:
$final = array();
foreach ($locations as $L) {
$final[$L['country']][$L['state']][$L['city']][$L['location']] = $L['count'];
}
However, it turns out that the initial array $levels is dynamic and can change in values and length So I cannot hard-code the levels into that last line, and I do not know how many elements there are. So the $levels array might look like this:
$levels = array('country', 'state');
Or
$levels = array('country', 'state', 'location');
The values will always exist in the data to be processed, but there might be more elements in the processed data than in the levels array. I want the final array to only contain the values that are in the $levels array, no matter what additional values are in the original data.
How can I use the array $levels as a guidance to dynamically create the $final array?
I thought I could just build the string $final[$L['country']][$L['state']][$L['city']][$L['location']] with implode() and then run eval() on it, but is there are a better way?
Here's my implementation. You can try it out here:
$locations = array(
1 => array('country'=>'USA', 'state'=>'New York', 'city'=>'NYC', 'location'=>'Central Park', 'count'=>123),
2 => array('country'=>'Germany', 'state'=>'Blah', 'city'=>'NY', 'location'=>'Testing', 'count'=>54),
);
$hierarchy = array();
$levels = array_reverse(
array('country', 'state', 'city', 'location')
);
$lastLevel = 'count';
foreach ( $locations as $L )
{
$array = $L[$lastLevel];
foreach ( $levels as $level )
{
$array = array($L[$level] => $array);
}
$hierarchy = array_merge_recursive($hierarchy, $array);
}
print_r($hierarchy);
Cool question. A simple approach:
$output = []; //will hold what you want
foreach($locations as $loc){
$str_to_eval='$output';
for($i=0;$i<count($levels);$i++) $str_to_eval .= "[\$loc[\$levels[$i]]]";
$str_to_eval .= "=\$loc['count'];";
eval($str_to_eval); //will build the array for this location
}
Live demo
If your dataset always in fixed structure, you might just loop it
$data[] = [country=>usa, state=>ny, city=>...]
to
foreach ($data as $row) {
$result[][$row[country]][$row[state]][$row[city]] = ...
}
In case your data is dynamic and the levels of nested array is also dynamic, then the following is an idea:
/* convert from [a, b, c, d, ...] to [a][b][...] = ... */
function nested_array($rows, $level = 1) {
$data = array();
$keys = array_slice(array_keys($rows[0]), 0, $level);
foreach ($rows as $r) {
$ref = &$data[$r[$keys[0]]];
foreach ($keys as $j => $k) {
if ($j) {
$ref = &$ref[$r[$k]];
}
unset($r[$k]);
}
$ref = count($r) > 1 ? $r : reset($r);
}
return $data;
}
try this:
<?php
$locations = [
['country'=>'USA', 'state'=>'New York', 'city'=>'NYC', 'location'=>'Central Park', 'street'=>'7th Ave', 'count'=>123],
['country'=>'USA', 'state'=>'Maryland', 'city'=>'Baltimore', 'location'=>'Harbor', 'count'=>24],
['country'=>'USA', 'state'=>'Michigan', 'city'=>'Lansing', 'location'=>'Midtown', 'building'=>'H2B', 'count'=>7],
['country'=>'France', 'state'=>'Sud', 'city'=>'Marseille', 'location'=>'Centre Ville', 'count'=>12],
];
$nk = array();
foreach($locations as $l) {
$jsonstr = json_encode($l);
preg_match_all('/"[a-z]+?":/',$jsonstr,$e);
$narr = array();
foreach($e[0] as $k => $v) {
if($k == 0 ) {
$narr[] = '';
} else {
$narr[] = ":{";
}
}
$narr[count($e[0]) -1] = ":" ;
$narr[] = "";
$e[0][] = ",";
$jsonstr = str_replace($e[0],$narr,$jsonstr).str_repeat("}",count($narr)-3);
$nk [] = $ko =json_decode($jsonstr,TRUE);
}
print_r($nk);
Database have three field:
here Name conatin contry state and city name
id,name,parentid
Pass the contry result to array to below function:
$data['contry']=$this->db->get('contry')->result_array();
$return['result']=$this->ordered_menu( $data['contry'],0);
echo "<pre>";
print_r ($return['result']);
echo "</pre>";
Create Function as below:
function ordered_menu($array,$parent_id = 0)
{
$temp_array = array();
foreach($array as $element)
{
if($element['parent_id']==$parent_id)
{
$element['subs'] = $this->ordered_menu($array,$element['id']);
$temp_array[] = $element;
}
}
return $temp_array;
}
On line 6 I am pushing a value from the database to the array called $products. I would now like to give another value from the database ($row->image) to the same array which matches with $row->name.
Maybe it could make sense to use a two dimensional array but I don't know how to do this in this case.
$products = array();
foreach($_POST['selected_checkboxes'] as $value) {
if($result = $db->query("SELECT * FROM produkte WHERE $value = 1")){
while($row = $result->fetch_object()) {
if (!in_array($row->name, $products)) {
array_push($products, $row->name);
}
}
}
else {
array_push($products, 'error');
}
}
The result should show me the name and the image of both values which belong together.
You could do this, assuming you already have your $row->name and $row->image matching logic sorted:
if (!in_array($row->name, $products)) {
array_push( $products, array('name'=>$row->name, 'image'=>$row->image) );
}
You can try it like this:
$products = array();
foreach ( $_POST['selected_checkboxes'] as $value ) {
if ( $result = $db->query( "SELECT * FROM produkte WHERE $value = 1" ) ) {
while ( $row = $result->fetch_object() ) {
// if your name is unique you can do it like this,
// if not just take $row->id as index
if( isset( $products[$row->name] ) ) continue;
$products[$row->name] = array( "name" => $row->name, "image" => $row->image );
}
} else {
array_push( $products, 'error' );
}
}
// if you want to have plain digits as index you can get a reindexed array
$products = array_values( $products );
then you will get an array like that:
array(//$products
array(
"name" => "productname",
"image" => "productimage"
)
);
I think you can achieve that if you use a stdClass object.
$std = new stdClass();
$std->name = $row->name;
$std->image = $row->image;
array_push($products, $std);
Or you can change your sql query to
SELECT name, image FROM produkte WHERE $value = 1
and
array_push($products, $row);
Hello I wanna check if is string element of codeIgniter query, so I wanna compere to arrays.
I use this soulution but i get false in both case.
$data = array(
'Firstname' => $ime ,
'Lastname' => $prezime,
'Nick' => $username,
'EmailAddress' => $email,
'Uid' => $uid,
);
$rs = $this->db->query("Select Nick FROM cms_cart_customers");
$array = $rs->result_array();
if(!in_array($data['Nick'],$array))
{
$this->db->insert('cms_cart_customers', $data);
}
The result_array() function returns you a multi-dimensional array, even with a single column. You need to flatten the array in order to search the array linearly, try something like this:
$array = $rs->result_array();
$flattened = array();
foreach($array as $a) {
$flattened[] = $a['Nick'];
}
if(!in_array($data['Nick'],$flattened)) {
$this->db->insert('cms_cart_customers', $data);
}
Codeigniter query will return result in associative array and in_array() function will not going to do the trick.
Here is one way you can do this custom is_in_array function source
//Helper function
function is_in_array($array, $key, $key_value){
$within_array = false;
foreach( $array as $k=>$v ){
if( is_array($v) ){
$within_array = is_in_array($v, $key, $key_value);
if( $within_array == true ){
break;
}
} else {
if( $v == $key_value && $k == $key ){
$within_array = true;
break;
}
}
}
return $within_array;
}
$array = $rs->result_array();
if(!is_in_array($array, 'Nick', $data['Nick']))
{
$this->db->insert('cms_cart_customers', $data);
}
Other Method
If you are trying to avoid duplicate entry, you should use a Select query first to check that the 'Nick' = $username is already present in table, if not then Issue an insert
Example
$rs = $this->db->get_where('cms_cart_customers', array('Nick' => $username));
//After that just check the row count it should return 0
if($rs->num_rows() == 0) {
$this->db->insert('cms_cart_customers', $data);
}
Hi all' I have a page into PHP where I retrieve XML data from a server and I want to store this data into an array.
This is my code:
foreach ($xml->DATA as $entry){
foreach ($entry->HOTEL_DATA as $entry2){
$id = (string)$entry2->attributes()->HOTEL_CODE;
$hotel_array2 = array();
$hotel_array2['id'] = $entry2->ID;
$hotel_array2['name'] = utf8_decode($entry2->HOTEL_NAME);
$i=0;
foreach($entry2->ROOM_DATA as $room){
$room_array = array();
$room_array['id'] = (string)$room->attributes()->CCHARGES_CODE;
$hotel_array2['rooms'][$i] = array($room_array);
$i++;
}
array_push($hotel_array, $hotel_array2);
}
}
In this mode I have the array hotel_array which all hotel with rooms.
The problem is that: into my XML I can have multiple hotel with same ID (the same hotel) with same information but different rooms.
If I have an hotel that I have already inserted into my hotel_array I don't want to insert a new array inside it but I only want to take its rooms array and insert into the exisiting hotel.
Example now my situation is that:
hotel_array{
[0]{
id = 1,
name = 'test'
rooms{
id = 1
}
}
[0]{
id = 2,
name = 'test2'
rooms{
id = 100
}
}
[0]{
id = 1,
name = 'test'
rooms{
id = 30
}
}
}
I'd like to have this result instead:
hotel_array{
[0]{
id = 1,
name = 'test'
rooms{
[0]{
id = 1
}
[1]{
id = 30
}
}
}
[0]{
id = 2,
name = 'test2'
rooms{
id = 100
}
}
}
How to create an array like this?
Thanks
first thing is it helps to keep the hotel id as the index on hotel_array when your creating it.
foreach ($xml->DATA as $entry){
foreach ($entry->HOTEL_DATA as $entry2){
$id = (string)$entry2->attributes()->HOTEL_CODE;
$hotel_array2 = array();
$hotel_array2['id'] = $entry2->ID;
$hotel_array2['name'] = utf8_decode($entry2->HOTEL_NAME);
$i=0;
foreach($entry2->ROOM_DATA as $room){
$room_array = array();
$room_array['id'] = (string)$room->attributes()->CCHARGES_CODE;
$hotel_array2['rooms'][$i] = array($room_array);
$i++;
}
if (!isset($hotel_array[$hotel_array2['id']])) {
$hotel_array[$hotel_array2['id']] = $hotel_array2;
} else {
$hotel_array[$hotel_array2['id']]['rooms'] = array_merge($hotel_array[$hotel_array2['id']]['rooms'], $hotel_array2['rooms']);
}
}
}
Whilst this is the similar answer to DevZer0 (+1), there is also quite a bit that can be done to simplify your workings... there is no need to use array_merge for one, or be specific about $i within your rooms array.
$hotels = array();
foreach ($xml->DATA as $entry){
foreach ($entry->HOTEL_DATA as $entry2){
$id = (string) $entry2->attributes()->HOTEL_CODE;
if ( empty($hotels[$id]) ) {
$hotels[$id] = array(
'id' => $id,
'name' => utf8_decode($entry2->HOTEL_NAME),
'rooms' => array(),
);
}
foreach($entry2->ROOM_DATA as $room){
$hotels[$id]['rooms'][] = array(
'id' => (string) $room->attributes()->CCHARGES_CODE;
);
}
}
}
Just in case it helps...
And this :)
$hotel_array = array();
foreach ($xml->DATA as $entry)
{
foreach ($entry->HOTEL_DATA as $entry2)
{
$hotel_code = (string) $entry2->attributes()->HOTEL_CODE;
if (false === isset($hotel_array[$hotel_code]))
{
$hotel = array(
'id' => $entry2->ID,
'code' => $hotel_code,
'name' => utf8_decode($entry2->HOTEL_NAME)
);
foreach($entry2->ROOM_DATA as $room)
{
$hotel['rooms'][] = array(
'id' => (string)$room->attributes()->CCHARGES_CODE,
);
}
$hotel_array[$hotel_code] = $hotel;
}
}
}