inserting to multidimensional array php

inserting to multidimensional array php - php

Im trying to insert variables to the array by using foreach loop. This is the foreach loop im trying to implement with
foreach($rows as &$url) {
$link = array("url");
array_push($url, "hello World");
}
And this is the result I get.
Array
(
[0] => Array
(
[cat_id] => 1
[id] => RT
[name] => root
[parent] => 0
[0] => hello World
)
[1] => Array
(
[cat_id] => 2
[id] => CI
[name] => Civil & Interior Works
[parent] => 1
[0] => hello World
)
)
but i would like the result to be like this.
Array
(
[0] => Array
(
[cat_id] => 1
[id] => RT
[name] => root
[parent] => 0
[url] => hello World
)
[1] => Array
(
[cat_id] => 2
[id] => CI
[name] => Civil & Interior Works
[parent] => 1
[url] => hello World
)
)
If i pass the variable $link = array("url"); to array_push($link, "hello World"); nothing happens.
if I remove the referance from the foreach($rows as &$url) the loop does not work at all. Please advise.

Just add a value under the required key:
foreach($rows as &$row) {
$row['url'] = "hello World";
}

Related

Getting out the value of a key in multidimentional array in php

It looks like you have one object, that when decoded actually only has one array item. So, in your case, ‘myprojectname’ may simply be “$projects[0][‘name’]”
If many array items, you could
foreach ($projects as $project) {
echo $project[‘name’];
}
EDIT: I took object provided and json_decoded it myself, it doesn't match the json_decoded item presented by OP -- the first image shows the code to var_dump 'name' OP desired, part of the code also below:
$decoded = json_decode($obj);
$projects = $decoded->projects;
$name = $projects[0]->name;

Your 'projects' contains an array ("projects":[{"id":127, ... }]). I assume that the 'projects'-array might contain multiple 'project'-objects like this?
{
"projects":
[
{
"id":127,
"name":"my-project"
},
{
"id":128,
"name":"my-other-project"
}
]
}
In that case you need the arrow notation to access the name property, for example:
foreach ($projects as $project_object) {
foreach ($project_object as $project) {
echo $project->name . '<br/>';
}
}
EDIT:
I took a minimal code example of the OP and got the expected result:
Can you add more details in your code snippets in your original question or provide us with a working example of your code?
There are some online PHP sandboxes that can help you with this. For example: I stripped out all code that does not seem related to your question and got the result you are looking for in two different ways:
http://sandbox.onlinephpfunctions.com/code/009c53671fd9545e4fcecfe4b0328974381ee2ce
It is also a good idea to sum up all the foreach loops that you already tried, so we can see if you were nearly there with your own solution. This way we can understand your question better and it prevents us from offering solutions that you already used.

php delete specific value from array

I have an array $products that looks like this
Array
(
[services] => Array
(
[0] => Array
(
[id] => 1
[icon] => bus.png
[name] => Web Development
[cost] => 500
)
[1] => Array
(
[id] => 4
[icon] => icon.png
[name] => Icon design
[cost] => 300
)
)
)
I am trying to delete the part of array that matches [id] => 1 and for this I am using the following code
$key = array_search('1', $products);
unset($products['services'][$key]);
However it is not working and I am not getting any error either.
What am i doing wrong?

This should work for you:
$key = array_search('1', $products["services"]);
//^^^^^^^^^^^^ See here i search in this array
unset($products['services'][$key]);
print_r($products);
Output:
Array ( [services] => Array ( [1] => Array ( [id] => 4 [icon] => icon.png [name] => Icon design [cost] => 300 ) ) )
And if you want to reindex the array, so that it starts again with 0 you can do this:
$products["services"] = array_values($products["services"]);
Then you get the output:
Array ( [services] => Array ( [0] => Array ( [id] => 4 [icon] => icon.png [name] => Icon design [cost] => 300 ) ) )
//^^^ See here starts again with 0

This will loop through $products['services'] and delete the array whose 'id' key has value 1. array_values just re-indexes the array from 0 again.
foreach($products['services'] as $key => $service)
{
if($product['id'] == 1)
{
unset($products['services'][$key]);
array_values($products['services']);
break;
}
}

Get value in mutli array

This should work:
foreach( $results as $result)
foreach( $result['product'] as $product)
echo $product['title'];

You could either loop through the array like pointed out above or possibly use array_walk_recursive like this:
$title_array = array();
array_walk_recursive($input_array, 'find_titles');
function find_titles($value, $key) {
global $title_array;
if ($key == 'title') {
$title_array[] = $value;
}
}
This might be a better solution if you you are not certain what the structure of the input array will be (i.e. how many levels deep the key you are looking for is nested).

To output the title of each product in $results:
foreach ($results as $result) {
echo $result['product']['title'];
}

Consider using array_walk_recursive
Working example
<?php
$a = array("hai", array("ha"=>1, "hai"=>2, array("a"=>1, "b"=>2)));
function test($item, $key)
{
echo "$key holds $item\n";
}
array_walk_recursive($a, 'test');
0 holds hai
ha holds 1
hai holds 2
a holds 1
b holds 2
If you are interested only in title
Consider using foreach
foreach($results['item'] as $result) {
echo $result['product']['title'];
}

Recursive function for a multidimensional array?

There's really no need for recursion for something like this, considering the depth of the tree is always fixed and the structure is known. Using some nested loops would do the trick:
$friends = $fqlResult;
$friends_BA = array();
foreach ($friends as $friend) {
if (is_array($friend['education'])) {
foreach ($friend['education'] as $school) {
if (isset($school['concentration'])) {
foreach ($school['concentration'] as $concentration) {
if (strpos(strtolower($concentration['name']), 'business') !== false) {
$friends_BA[] = $friend;
continue 3; // skip to the next friend
}
}
}
}
}
}
var_dump($friends_BA);

You want a function that will find a specific value on a specific field in the array,
function arraySearch($key, $value, $array){
$flag = FALSE;
foreach($array as $result){
if(arraySearch($key, $value, $result)){
$flag = TRUE
}elseif(isset($result[$key] && $result[$key] == $value){
$flag = TRUE;
}
}
return $flag
}
to improve performance rather than setting $flag to true, you could return true as it will stop the execution of the function and prevent it from continuing to search the array.
Call it like so
foreach($fqlResult as $result){
if(arraySearch('concentration', 'Business Administration', $result)){
//You have found a user you are looking for, echo $result['name'] or do what you want with the result.
}
}

PHP / MYSQL returns array how to do a foreach

Ok, it seems this would not be so hard, but for some reason it is not liking me today.
so basically the array returns like this
Array ( [0] => Array ( [id] => 2 [title] => this test [content] => this is a test [releasedate] => 2011-07-23 16:19:59 [publish] => 1 ) [1] => Array ( [id] => 1 [title] => 'title2' [content] => 'This is story 2'. [releasedate] => 2011-07-23 15:34:25 [publish] => 1 ) )
however it seems not to show when I do the following
foreach( $res as $story){
print $story->title;
}

This is an associative array, so do print $story['title']

We Keep Coding

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inserting to multidimensional array php - php

Just add a value under the required key: foreach($rows as &$row) { $row['url'] = "hello World"; }

Related

Getting out the value of a key in multidimentional array in php

php delete specific value from array

Get value in mutli array

Recursive function for a multidimensional array?

PHP / MYSQL returns array how to do a foreach

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