I have a php array called $data with keys as numeric values, as below:
$data['5']="Data 5";
$data['6']="Data 6";
$data['9']="Data 9";
I then have an addition to this variable as follows:
$data['new']="New Data";
But i need to place this new data into the $data array before a specific key that is returned by $key variable.
So for example if $key=6 then the new data addition needs to be added just before the 6 in the $data array.
Any ideas how I can achieve this?
Thanks
John, if you want to add it on particular position than you can try code like this.
$data['5']="Data 5";
$data['6']="Data 6";
$data['9']="Data 9";
$additionData['new']="New Data";
function array_insert($arr, $insert, $position) {
$i =0;
foreach ($arr as $key => $value) {
if ($i == $position) {
foreach ($insert as $ikey => $ivalue) {
$ret[$ikey] = $ivalue;
}
}
$ret[$key] = $value;
$i++;
}
return $ret;
}
$data = array_insert($data,$additionData,2);
echo "<pre>";
print_r($data);
and call this function like array_insert($data,$additionData,2);
2 is the position.
Related
I have an array data where I am storing the result of an SQL query as below :
$stmt = sqlsrv_query($db,$sql);
$data = [];
while($row = sqlsrv_fetch_array( $stmt, SQLSRV_FETCH_ASSOC)) {
if(!empty($row)) { $data[] = $row; } }
then I want to create a group key which is the concatenation of specific keys of my array data as below :
foreach ($data as $d) {
$group_key = $d['id'].'_'.$d['Country'].'_'.$d['Order Numer'];
//rest of my code
}
it works fine but I want to choose the keys dynamically instead of setting up manually id, Country and Order Number...
let's say I have an array $PostKeys = ["id","Country","Order Number"]; this array will vary depending on the values selected by user...
What I did is :
$PostKeys = ["id","Country","Order Number"];
foreach ($data as $d) {
foreach($PostKeys as $value)
{ $array_group_key[] = $d[$value] ; }
$group_key = implode("_",$array_group_key);
// rest of my code
}
I am supposed to get the same result but there is always mismatch. I didn't figure out where is the issue exactly. Any suggestions please ? Thank you very much.
You need to empty $array_group_key each time through the loop. Otherwise, you're appending to the results from all the previous rows.
foreach ($data as $d) {
$array_group_key = [];
foreach($PostKeys as $value)
{
$array_group_key[] = $d[$value] ;
}
}
I need compare 2 arrays , the first array have one order and can´t change , in the other array i have different values , the first array must compare his id with the id of the other array , and if the id it´s the same , take the value and replace for show all in the same order
For Example :
$array_1=array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2=array("4a-walking","2a-cats");
The Result in this case i want get it´s this :
"1a-dogs","2a-cats","3a-birds","4a-walking"
If the id in this case 4a it´s the same , that entry must be modificate and put the value of other array and stay all in the same order
I do this but no get work me :
for($fte=0;$fte<count($array_1);$fte++)
{
$exp_id_tmp=explode("-",$array_1[$fte]);
$cr_temp[]="".$exp_id_tmp[0]."";
}
for($ftt=0;$ftt<count($array_2);$ftt++)
{
$exp_id_targ=explode("-",$array_2[$ftt]);
$cr_target[]="".$exp_id_targ[0]."";
}
/// Here I tried use array_diff and others but no can get the results as i want
How i can do this for get this results ?
Maybe you could use the array_udiff_assoc() function with a callback
Here you go. It's not the cleanest code I've ever written.
Runnable example: http://3v4l.org/kUC3r
<?php
$array_1=array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2=array("4a-walking","2a-cats");
function getKeyStartingWith($array, $startVal){
foreach($array as $key => $val){
if(strpos($val, $startVal) === 0){
return $key;
}
}
return false;
}
function getMergedArray($array_1, $array_2){
$array_3 = array();
foreach($array_1 as $key => $val){
$startVal = substr($val, 0, 2);
$array_2_key = getKeyStartingWith($array_2, $startVal);
if($array_2_key !== false){
$array_3[$key] = $array_2[$array_2_key];
} else {
$array_3[$key] = $val;
}
}
return $array_3;
}
$array_1 = getMergedArray($array_1, $array_2);
print_r($array_1);
First split the 2 arrays into proper key and value pairs (key = 1a and value = dogs). Then try looping through the first array and for each of its keys check to see if it exists in the second array. If it does, replace the value from the second array in the first. And at the end your first array will contain the result you want.
Like so:
$array_1 = array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2 = array("4a-walking","2a-cats");
function splitArray ($arrayInput)
{
$arrayOutput = array();
foreach ($arrayInput as $element) {
$tempArray = explode('-', $element);
$arrayOutput[$tempArray[0]] = $tempArray[1];
}
return $arrayOutput;
}
$arraySplit1 = splitArray($array_1);
$arraySplit2 = splitArray($array_2);
foreach ($arraySplit1 as $key1 => $value1) {
if (array_key_exists($key1, $arraySplit2)) {
$arraySplit1[$key1] = $arraySplit2[$key1];
}
}
print_r($arraySplit1);
See it working here:
http://3v4l.org/2BrVI
$array_1=array("1a-dogs","2a-cats","3a-birds","4a-people");
$array_2=array("4a-walking","2a-cats");
function merge_array($arr1, $arr2) {
$arr_tmp1 = array();
foreach($arr1 as $val) {
list($key, $val) = explode('-', $val);
$arr_tmp1[$key] = $val;
}
foreach($arr2 as $val) {
list($key, $val) = explode('-', $val);
if(array_key_exists($key, $arr_tmp1))
$arr_tmp1[$key] = $val;
}
return $arr_tmp1;
}
$result = merge_array($array_1, $array_2);
echo '<pre>';
print_r($result);
echo '</pre>';
This short code works properly, you'll get this result:
Array
(
[1a] => dogs
[2a] => cats
[3a] => birds
[4a] => walking
)
I got stuck somehow on the following problem:
What I want to achieve is to merge the following arrays based on key :
{"Entities":{"submenu_id":"Parents","submenu_label":"parents"}}
{"Entities":{"submenu_id":"Insurers","submenu_label":"insurers"}}
{"Users":{"submenu_id":"New roles","submenu_label":"newrole"}}
{"Users":{"submenu_id":"User - roles","submenu_label":"user_roles"}}
{"Users":{"submenu_id":"Roles - permissions","submenu_label":"roles_permissions"}}
{"Accounting":{"submenu_id":"Input accounting data","submenu_label":"new_accounting"}}
Which needs to output like this:
[{"item_header":"Entities"},
{"list_items" :
[{"submenu_id":"Parents","submenu_label":"parents"},
{"submenu_id":"Insurers","submenu_label":"insurers"}]
}]
[{"item_header":"Users"},
{"list_items" :
[{"submenu_id":"New roles","submenu_label":"newrole"}
{"submenu_id":"User - roles","submenu_label":"user_roles"}
{"submenu_id":"Roles - permissions","submenu_label":"roles_permissions"}]
}]
[{"item_header":"Accounting"},
{"list_items" :
[{"submenu_id":"Input accounting data","submenu_label":"new_accounting"}]
}]
I have been trying all kinds of things for the last two hours, but each attempt returned a different format as the one required and thus failed miserably. Somehow, I couldn't figure it out.
Do you have a construction in mind to get this job done?
I would be very interested to hear your approach on the matter.
Thanks.
$input = array(
'{"Entities":{"submenu_id":"Parents","submenu_label":"parents"}}',
'{"Entities":{"submenu_id":"Insurers","submenu_label":"insurers"}}',
'{"Users":{"submenu_id":"New roles","submenu_label":"newrole"}}',
'{"Users":{"submenu_id":"User - roles","submenu_label":"user_roles"}}',
'{"Users":{"submenu_id":"Roles - permissions","submenu_label":"roles_permissions"}}',
'{"Accounting":{"submenu_id":"Input accounting data","submenu_label":"new_accounting"}}',
);
$input = array_map(function ($e) { return json_decode($e, true); }, $input);
$result = array();
$indexMap = array();
foreach ($input as $index => $values) {
foreach ($values as $k => $value) {
$index = isset($indexMap[$k]) ? $indexMap[$k] : $index;
if (!isset($result[$index]['item_header'])) {
$result[$index]['item_header'] = $k;
$indexMap[$k] = $index;
}
$result[$index]['list_items'][] = $value;
}
}
echo json_encode($result);
Here you are!
In this case, first I added all arrays into one array for processing.
I thought they are in same array first, but now I realize they aren't.
Just make an empty $array=[] then and then add them all in $array[]=$a1, $array[]=$a2, etc...
$array = '[{"Entities":{"submenu_id":"Parents","submenu_label":"parents"}},
{"Entities":{"submenu_id":"Insurers","submenu_label":"insurers"}},
{"Users":{"submenu_id":"New roles","submenu_label":"newrole"}},
{"Users":{"submenu_id":"User - roles","submenu_label":"user_roles"}},
{"Users":{"submenu_id":"Roles - permissions","submenu_label":"roles_permissions"}},
{"Accounting":{"submenu_id":"Input accounting data","submenu_label":"new_accounting"}}]';
$array = json_decode($array, true);
$intermediate = []; // 1st step
foreach($array as $a)
{
$keys = array_keys($a);
$key = $keys[0]; // say, "Entities" or "Users"
$intermediate[$key] []= $a[$key];
}
$result = []; // 2nd step
foreach($intermediate as $key=>$a)
{
$entry = ["item_header" => $key, "list_items" => [] ];
foreach($a as $item) $entry["list_items"] []= $item;
$result []= $entry;
}
print_r($result);
I would prefer an OO approach for that.
First an object for the list_item:
{"submenu_id":"Parents","submenu_label":"parents"}
Second an object for the item_header:
{"item_header":"Entities", "list_items" : <array of list_item> }
Last an object or an array for all:
{ "Menus: <array of item_header> }
And the according getter/setter etc.
The following code will give you the requisite array over which you can iterate to get the desired output.
$final_array = array();
foreach($array as $value) { //assuming that the original arrays are stored inside another array. You can replace the iterator over the array to an iterator over input from file
$key = /*Extract the key from the string ($value)*/
$existing_array_for_key = $final_array[$key];
if(!array_key_exists ($key , $final_array)) {
$existing_array_for_key = array();
}
$existing_array_for_key[count($existing_array_for_key)+1] = /*Extract value from the String ($value)*/
$final_array[$key] = $existing_array_for_key;
}
For example:
$arr = array(3,5,2,5,3,9);
I want to show only common elements i.e 3,5 as output.
Here's my attempt:
<?php
$arr = array(3,5,2,5,3,9);
$temp_array = array();
foreach($arr as $val)
{
if(isset($temp_array[$val]))
{
$temp_array[$val] = $val;
}else{
$temp_array[$val] = 0;
}
}
foreach($temp_array as $val2)
{
if($val2 > 0)
{
echo $val2 . ', ';
}
}
?>
--
Output --
3, 5,
Try the following:
$arr = array(3,5,2,5,3,9);
foreach($arr as $key => $val){
//remove the item from the array in order
//to prevent printing duplicates twice
unset($arr[$key]);
//now if another copy of this key still exists in the array
//print it since it's a dup
if (in_array($val,$arr)){
echo $val . " ";
}
}
Output:
3 5
Addition:
I guess that the reason you were asked to implement it yourself (without using built-in functions) was to avoid answers like:
$unique = array_unique($arr);
$dupes = array_diff_key( $arr, $unique );
$arrnew = array();
for($i=0;$i<count($arr);$i++)
{
for($j=$i+1;$j<count($arr);$j++)
{
if($arr[$i]==$arr[$j])
{
$arrnew[]=$arr[$j];
}
}
}
function dp(){
$this->load->library('heart');
$times = 35;
$i = 0; while ($i<$times){
$this->heart->test();
//10 newest
$query = $this->db->get('test', 10, 20);
//set variables from query
foreach ($query->result() as $getrow)
{
$data1 = $getrow->data1;
$data2 = $getrow->data2;
}
//for each data1; do go();
foreach ($data1 as $id){
$this->heart->go($id,$data2);
}
//increment $i
$i++;
}
}
Hey guys, here is my code. I am trying to get the most newest entries from the database, then setting them as variables. For each variable, I am trying to call a function to it passing $id (data1) and $data2. Will data2 be passed or do I need to do something like $data1 as $id && $data2 as $id2. I need to pass over $data1 and $data2 to go() which should be different everytime.
The problem here is I keep getting 'Invalid argument supplied for foreach()' whenever I try to run the code. Anyone know what the issue is here?
Thank you in advance.
I believe you actually want to be creating arrays of $data1 and $data2.
Currently you are overwriting the values in each of those variable each time through the first foreach loop.
$data1 = array();
$data2 = array();
//set variables from query
foreach ($query->result() as $getrow)
{
$data1[] = $getrow->data1;
$data2[] = $getrow->data2;
}
//for each data1; do go();
foreach ($data1 as $key => $id){
$this->heart->go($id,$data2[$key]);
}
Alternatively you could use data1 and data2 as the key/value pair of the array
$data = array();
foreach ($query->result() as $getrow)
{
$data[$getrow->data1] = $getrow->data2;
}
//for each data1; do go();
foreach ($data as $key => $value){
$this->heart->go($key, $value);
}
You can do it all with a single foreach loop without building unnecessary data arrays:
foreach($query->result() as $getrow) {
$this->heart->go($getrow->data1, $getrow->data2);
}