Array search on a multidimensional array? - php

Here is the start of my array:
array(19) {
[0]=> array(3) {
["id"]=> string(2) "46"
["title"]=> string(7) "A"
["thumb"]=> string(68) "013de1e6ab2bfb5bf9fa7de648028a4aefea0ade816b935dd423ed1ce15818ba.jpg"
}
[1]=> array(3) {
["id"]=> string(2) "47"
["title"]=> string(7) "B"
["thumb"]=> string(68) "9df2be62d615f8a6ae9b7de36671c9907e4dadd3d9c3c5db1e21ac815cf098e6.jpg"
}
[2]=> array(3) {
["id"]=> string(2) "49"
["title"]=> string(6) "Look 7"
["thumb"]=> string(68) "0bfb2a6dd1142699ac113e4184364bdf5229517d98d0a428b62f6a72c8288dac.jpg"
}
}
How can I use array_search on this? I need to get the id of an element.

with use of === operator compared types have to be exactly same, in this code you have to search string or just use == instead ===.
function searchId($id, $array) {
foreach ($array as $key => $val) {
if ($val['id'] === $id) {
return $key;
}
}
return null;
}
$id = searchId('46', $yourarray);

Related

How to split multidimensional array into arrays based on the values - PHP

I have this array, it could look something like this:
array(756) {
[0]=>
array(2) {
[0]=>
string(12) "joint_temps5"
[1]=>
string(4) "23.5"
}
[1]=>
array(2) {
[0]=>
string(12) "joint_temps4"
[1]=>
string(4) "23.5"
}
[2]=>
array(2) {
[0]=>
string(12) "joint_temps3"
[1]=>
string(2) "24"
}
[3]=>
array(2) {
[0]=>
string(12) "joint_temps2"
[1]=>
string(4) "24.5"
}
[4]=>
array(2) {
[0]=>
string(12) "joint_temps1"
[1]=>
string(2) "25"
}
[5]=>
array(2) {
[0]=>
string(12) "joint_temps0"
[1]=>
string(4) "25.5"
}
[6]=>
array(2) {
[0]=>
string(12) "joint_temps5"
[1]=>
string(4) "23.5"
}
[7]=>
array(2) {
[0]=>
string(12) "joint_temps4"
[1]=>
string(4) "23.5"
}
[8]=>
array(2) {
[0]=>
string(12) "joint_temps3"
[1]=>
string(2) "24"
}
[9]=>
array(2) {
[0]=>
string(12) "joint_temps2"
[1]=>
string(4) "24.5"
}
[10]=>
array(2) {
[0]=>
string(12) "joint_temps1"
[1]=>
string(2) "25"
}
[11]=>
array(2) {
[0]=>
string(12) "joint_temps0"
[1]=>
string(4) "25.5"
}
etc...};
How would i go about looping thru and splitting it up into arrays based on the value in the inner arrays[0] ex: "joint_temps5".
I have tested quite a few things but without success. My problem mainly is i dont know what might be in the string in the arrays.
I would like to end up with arrays like:
$array1[] = array(x_amount){
[0]=>
array(2) {
[0]=>
string(12) "joint_temps5"
[1]=>
string(4) "23.5"
}
[1]=>
array(2) {
[0]=>
string(12) "joint_temps5"
[1]=>
string(4) "23.5"
}
}
$array2[] = array(x_amount){
[0]=>
array(2) {
[0]=>
string(12) "joint_temps4"
[1]=>
string(4) "23.5"
}
[1]=>
array(2) {
[0]=>
string(12) "joint_temps4"
[1]=>
string(4) "23.5"
}
}
}
etc.
I would recommend to create a new array from your input array, using the value as an index of the array to be created, like so:
// test-set: input array is $a
$a[0] = array("joint_temps5","23.5");
$a[1] = array("joint_temps3","24");
$a[2] = array("joint_temps2","24.5");
$a[3] = array("joint_temps1","25");
$a[4] = array("joint_temps0","25.5");
$a[5] = array("joint_temps5","23.5");
$a[6] = array("joint_temps4","23.5");
$a[7] = array("joint_temps3","24");
$a[8] = array("joint_temps2","24.5");
$a[9] = array("joint_temps1","25");
foreach($a as $key => $value){
$b[$value[0]][] = $value; // *Explained below
}
*"Explained below": $a is the source array, $b is the newly created array.
$b[$value[0]][] means it wil create a new element for array $b[$value[0]]. And $value[0] will be substituted by the first value in the element of $a that the foreach loop hits.
Example: the first element of $a is this array: array("joint_temps5","23.5"). So in the foreach loop, the text "joint_temps5" ($value[0] in the foreach) will be used as a key/index to create a new element for array $b. The [] means that with every new execution of this line, a new element, with that key value $value[0], will be added.
It will result in:
array(6) {
["joint_temps5"]=>
array(2) {
[0]=>
array(2) {
[0]=>
string(12) "joint_temps5"
[1]=>
string(4) "23.5"
}
[1]=>
array(2) {
[0]=>
string(12) "joint_temps5"
[1]=>
string(4) "23.5"
}
}
["joint_temps3"]=>
array(2) {
[0]=>
array(2) {
[0]=>
string(12) "joint_temps3"
[1]=>
string(2) "24"
}
[1]=>
array(2) {
[0]=>
string(12) "joint_temps3"
[1]=>
string(2) "24"
}
}
["joint_temps2"]=>
array(2) {
[0]=>
array(2) {
[0]=>
string(12) "joint_temps2"
[1]=>
string(4) "24.5"
}
[1]=>
array(2) {
[0]=>
string(12) "joint_temps2"
[1]=>
string(4) "24.5"
}
}
["joint_temps1"]=>
array(2) {
[0]=>
array(2) {
[0]=>
string(12) "joint_temps1"
[1]=>
string(2) "25"
}
[1]=>
array(2) {
[0]=>
string(12) "joint_temps1"
[1]=>
string(2) "25"
}
}
["joint_temps0"]=>
array(1) {
[0]=>
array(2) {
[0]=>
string(12) "joint_temps0"
[1]=>
string(4) "25.5"
}
}
["joint_temps4"]=>
array(1) {
[0]=>
array(2) {
[0]=>
string(12) "joint_temps4"
[1]=>
string(4) "23.5"
}
}
}
You could loop through your array, and populate a new array using the string as a key, so something like:
foreach ($array as $working_array) {
$new_array[$working_array[0]][] = $working_array[1]; }
Which would give you an array something like :
$new_array["joint_temps5"]=> array(2) {
[0]=> "23.5"
[1]=> "23.5"}
If you needed to you could then parse that into an array in the format you desire quite easily.

how to return multidimensional array in codeigniter

guys i have multidimensional array which i got it from var_dump of $menu_order with this following array :
array(5) {
[0]=>
array(1) {
[0]=>
array(1) {
["variant_name"]=>
string(5) "Spicy"
}
}
[1]=>
array(2) {
[0]=>
array(1) {
["variant_name"]=>
string(5) "Spicy"
}
[1]=>
array(1) {
["variant_name"]=>
string(5) "small"
}
}
[2]=>
array(2) {
[0]=>
array(1) {
["variant_name"]=>
string(5) "Salty"
}
[1]=>
array(1) {
["variant_name"]=>
string(6) "medium"
}
}
[3]=>
array(2) {
[0]=>
array(1) {
["variant_name"]=>
string(12) "Mix of Herbs"
}
[1]=>
array(1) {
["variant_name"]=>
string(5) "large"
}
}
[4]=>
array(0) {
}
}
from that array, i need to get the variant_name become variant_menu_id with this following code :
foreach ($menu_order as $item) {
if (isset($item[0]["variant_name"])) {
foreach($item as $value) {
$variant_id[] = $this->Main_home_m->m_get_choice_id($value["variant_name"]);
}
} else {
$variant_id[] = array();
}
}
the model of m_get_choice_id have this following code :
Function m_get_choice_id($variant_name){
$this->db->select("variant_menu_id");
$this->db->from("uhd_variant_menu");
$this->db->where("variant_name",$variant_name);
$query = $this->db->get();
return $query->row_array();
}
the variant_id will be return to this multidimensional array :
array(8) {
[0]=>
array(1) {
["variant_menu_id"]=>
string(1) "3"
}
[1]=>
array(1) {
["variant_menu_id"]=>
string(1) "3"
}
[2]=>
array(1) {
["variant_menu_id"]=>
string(1) "6"
}
[3]=>
array(1) {
["variant_menu_id"]=>
string(1) "4"
}
[4]=>
array(1) {
["variant_menu_id"]=>
string(1) "7"
}
[5]=>
array(1) {
["variant_menu_id"]=>
string(1) "5"
}
[6]=>
array(1) {
["variant_menu_id"]=>
string(1) "8"
}
[7]=>
array(0) {
}
}
but i want the result variant_id become this multidimensional array :
array(5) {
[0]=>
array(1) {
[0]=>
string(1) "3"
}
[1]=>
array(2) {
[0]=>
string(1) "3"
[1]=>
string(1) "6"
}
[2]=>
array(2) {
[0]=>
string(1) "4"
[1]=>
string(1) "7"
}
[3]=>
array(2) {
[0]=>
string(1) "5"
[1]=>
string(1) "8"
}
[4]=>
array(0) {
}
}
guys can you help me how to get the multidimensional array?
thank you (:
Alternatively, you can create a temporary container holding the ids with an array. After getting them all as an array, push that whole batch inside a parent container:
$result = array();
foreach ($menu_order as $item) {
$temp = array(); // initialize temporary storage
if (isset($item[0]["variant_name"])) {
foreach($item as $value) {
$variant = $this->Main_home_m->m_get_choice_id($value["variant_name"]);
$temp[] = $variant['variant_menu_id']; // push single id into temporary storage
}
}
$result[] = $temp; // push ending batch
}

PHP - Multidimensional array epanded from variable

I have the following array stored in $members
array(3) {
[0]=> array(2) {
["index"]=> string(1) "1"
["routePartitionName"]=> string(20) "US-555-foop-GWRoutes" }
[1]=> array(2) {
["index"]=> string(1) "2"
["routePartitionName"]=> string(27) "Cluster DN Presence Allowed" }
[2]=> array(2) {
["index"]=> string(1) "3"
["routePartitionName"]=> string(26) "Cluster DN Presence Denied" }
}
I'm trying to embed this into another array during a foreach loop. However it seems to evaluate the $members variable as text.
$programTags[] = array(
"name"=>"$cssname",
"description"=>"$cssdescription",
"members"=>"$members");
How can I expand the variable thus creating a multidimensional array?
Remove the quotes from $members variable, it convert it into string.
$programTags[] = array(
"name"=>"$cssname",
"description"=>"$cssdescription",
"members"=>$members);
using nested foreach
foreach($members as $array)
{
//$array is array variable .
foreach($array as $values)
{
//your code here
}
}
exapmple:
$member = array(3) {
[0]=> array(2) {
["index"]=> string(1) "1"
["routePartitionName"]=> string(20) "US-555-foop-GWRoutes" }
[1]=> array(2) {
["index"]=> string(1) "2"
["routePartitionName"]=> string(27) "Cluster DN Presence Allowed" }
[2]=> array(2) {
["index"]=> string(1) "3"
["routePartitionName"]=> string(26) "Cluster DN Presence Denied" }
}
applaying foreach then,
$array = array(2) {
["index"]=> string(1) "1"
["routePartitionName"]=> string(20) "US-555-foop-GWRoutes"
}

Extract value from an array of array in PHP

I have a form and I serialised it to send it to PHP (AJAX) :
var dataString = $('#form_filtre').serializeArray();
I would like to extract in PHP value where names is "ou" :
array(1) {
["form_serialize"]=>
array(6) {
[0]=>
array(2) {
["name"]=>
string(3) "ctr"
["value"]=>
string(6) "maison"
}
[1]=>
array(2) {
["name"]=>
string(6) "action"
["value"]=>
string(17) "readHomesLocation"
}
[2]=>
array(2) {
["name"]=>
string(2) "ou"
["value"]=>
string(1) "8"
}
[3]=>
array(2) {
["name"]=>
string(2) "ou"
["value"]=>
string(1) "6"
}
[4]=>
array(2) {
["name"]=>
string(5) "quand"
["value"]=>
string(0) ""
}
[5]=>
array(2) {
["name"]=>
string(3) "max"
["value"]=>
string(3) "500"
}
}
}
I would like to extrat 6 and 8.
The problem, is that I don't know in advance how many "ou" I will have.
It can be from 0 to n
Seems like an easy approach would be to have PHP unserialize the array, then iterate over it with a foreach loop like this:
foreach($array as $index => $subArray) {
foreach($subArray as $key => $val) {
if ($key == "ou") {
$ouArray[$index] = $val;
}
}
}
(where $array, obviously, is your unserialized array)
You could also just use $ouArray[] = $val, if you don't care which element the ou belonged to.

Group array row data by two columns creating a new 3-level structure

I have 1 arrays:
array(5) { // This is the keys on the CSV.
[0]=>
array(4) {
[0]=>
string(4) "user"
[1]=>
string(4) "date"
[2]=>
string(3) "md5"
[3]=>
string(4) "sha1"
}
[1]=>
array(4) {
[0]=>
string(4) "user1"
[1]=>
string(8) "02/02/15"
[2]=>
string(6) "123456"
[3]=>
string(5) "54321"
}
[2]=>
array(4) {
[0]=>
string(4) "user1"
[1]=>
string(8) "02/03/15"
[2]=>
string(6) "123456"
[3]=>
string(5) "54321"
}
[3]=>
array(4) {
[0]=>
string(5) "user2"
[1]=>
string(8) "02/02/15"
[2]=>
string(6) "112233"
[3]=>
string(6) "332211"
}
[4]=>
array(4) {
[0]=>
string(5) "user2"
[1]=>
string(8) "02/03/15"
[2]=>
string(6) "112244"
[3]=>
string(6) "332244"
}
}
So User 1 and User 2 each have a file that is MD5/SHA1 sum'd and checked.
I would like the data to turn from the above, to this:
array(3) {
["user"]=>
array(1) {
["date"]=>
array(2) {
[0]=>
string(3) "md5"
[1]=>
string(4) "sha1"
}
}
["user1"]=>
array(1) {
["02/02/15"]=>
array(2) {
[0]=>
string(6) "123456"
[1]=>
string(5) "54321"
}
["02/03/15"]=>
array(2) {
[0]=>
string(6) "123456"
[1]=>
string(5) "54321"
}
}
["user2"]=>
array(1) {
["02/02/15"]=>
array(2) {
[0]=>
string(6) "112233"
[1]=>
string(6) "332211"
}
["02/03/15"]=>
array(2) {
[0]=>
string(6) "112244"
[1]=>
string(6) "332244"
}
}
}
So far, I'm close. Here is my code:
<?php
error_reporting(E_ALL & ~E_NOTICE);
//Reading csv
$csv = array_map('str_getcsv',file('/var/www/sums.csv'));
debug($csv);
//User list
$userData = array();
foreach ($csv as $user) {
$ts = $user[1];
$un = $user[0];
$sums = array($user[2],$user[3]);
$userPreProc[$un] = array($ts => $sums);
$userData = array_merge($userPreProc, $userData);
}
debug($userData);
function debug($db) {
echo "<pre>";
var_dump($db);
echo "</pre>";
}
?>
The issue here is that only the first 'user1' and 'user2' entries are merged to the new array, so it looks like this:
array(3) {
["user"]=>
array(1) {
["date"]=>
array(2) {
[0]=>
string(3) "md5"
[1]=>
string(4) "sha1"
}
}
["user1"]=>
array(1) {
["02/02/15"]=>
array(2) {
[0]=>
string(6) "123456"
[1]=>
string(5) "54321"
}
}
["user2"]=>
array(1) {
["02/02/15"]=>
array(2) {
[0]=>
string(6) "112233"
[1]=>
string(6) "332211"
}
}
}
Any suggestions how I can ensure that all the keys are merged as expected?
Just shift off the first two elements and use those respective values as the first and second level keys.
Code: (Demo)
$result = [];
foreach ($array as $row) {
$result[array_shift($row)][array_shift($row)] = $row;
}
var_export($result);
Or use array destructuring in the foreach declaration: (Demo)
$result = [];
foreach ($array as [$user, $date, $md5, $sha1]) {
$result[$user][$date] = [$md5, $sha1];
}
var_export($result);
Just change your foreach loop to be like this. You don't need to merge your array via function.
foreach ($csv as $user) {
$ts = $user[1];
$un = $user[0];
$sums = array($user[2],$user[3]);
$userData[$un][$ts] = $sums;
}

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