I have a complicated nested array which I want to remove all items and their children with specific store_id:
It's really difficult and I don't know how to figure it out.
Array
(
[0] => Array
(
[cart_id] => 89
[product_id] => 46
[store_id] => 2
[option] => Array
(
[0] => Array
(
[product_option_id] => 92
[value] => Aqua
)
[1] => Array
(
[product_option_id] => 91
[value] => 85C
)
)
)
[1] => Array
(
[cart_id] => 90
[product_id] => 46
[store_id] => 2
)
Many thanks for any kind help.
If you want to remove the entire array element if it has a specific store_id, you just need to loop over the array, check the store_id and remove the element if you don't want it anymore.
E.g.:
<?php
foreach($data as $key=>$row){
if($row['store_id'] == 2){
unset($data[$key]);
}
}
?>
You can change that '2' to be anything you want to specifically remove a store. Or you could change the if to match an array of ids if you want to match several stores.
Here is the example for unsetting the cart_id in multi dimensional array.
<?php
foreach($data as $key=>$row){
unset($data[$key]['cart_id']);
}
?>
Related
how to get all values array but set all keys the same name
ex :
this is my array
but i need remove this key .. I have used array_values() .. but not working
enter image description here
Seems like you want to grab all the arrays inside the item keys? Using array_column and specifying the item as the key will return the arrays inside each item key in a new array. If that is what you're after? The question was kind of hard to understand IMHO.
array_column($array, 'item');
This will return an array on the following structure.
Array
(
[0] => Array
(
[name] => ttt
[price] => 100
[quantity] => 1
)
[1] => Array
(
[name] => sss
[price] => 100
[quantity] => 1
)
[2] => Array
(
[name] => vvv
[price] => 100
[quantity] => 1
)
)
Here's a demo showing it working.
I'm trying very simply to use in_array() to check a key is in an array and then echo its value.
$array = Array
(
[cart_item] => Array
(
[0] => Array
(
[product_name] => White Sakura Necktie
[id] => 11
[product_auto_id] => 556729685
[quantity] => 2
[product_regular_price] => 95
[product_sale_price] => 95
[product_image] => 556729680Black_Sakura_Necktie.jpg
)
[1] => Array
(
[product_name] => hhhad ba bhdbh
[id] => 10
[product_auto_id] => 951790801
[quantity] => 2
[product_regular_price] => 20
[product_sale_price] =>
[product_image] => 951790801hhhad_ba_bhdbh_.jpg
)
)
)
And I have value 556729685 which I want to check that this value exists or not? So I am using in_array() function for this.
in_array(556729685, array_keys($array));
in_array(556729685, array_values($array));
in_array(556729685, $array);
All above three i have used but result always showing NULL means blank.
I am really frustrated to find the solution. I don't understand what's happening.
You should use array_column() which will return the values from a single column in the input array as an array.
$product_auto_ids = array_column($array['cart_item'], 'product_auto_id');
In this case, it would return the following:
Array
(
[0] => 556729685
[1] => 951790801
)
Then you can use in_array() like you currently are.
in_array(556729685, $product_auto_ids);
I have the following array :
Array
(
[0] => Array
(
[Name] => first_data
[building] => A
[apt] => 16
)
[1] => Array
(
[Name] => first_data
[building] => B
[apt] => 16
)
[2] => Array
(
[Name] => second_data
[building] => A
[apt] => 17
)
[3] => Array
(
[Name] => second_data
[building] => B
[apt] => 18
)
and I need it to be returned as :
Array
(
[0] => Array
(
[Name] => first_data
[A] => 16
[B] => 16
)
[1] => Array
(
[Name] => second_data
[A] => 17
[B] => 18
)
Any ideas?
BTW the first array has hundreds of entries (not only first_data, but second and etc...) plus it has more than A and B.
Thanks in advance.
Not exactly what you want, but if you instead index the new array by the name, you can do this very easily. If the index number is some kind of ID, you can just create a field for it
foreach ( $oldarray as $index => $piece )
{
$newarray[$piece['Name']] = array($piece['building'] => $piece['apt'])
}
This will give you
Array
(
['first_data'] => Array
(
['A'] => 16,
['B'] => 16
)
['second_data'] => Array
(
['A'] => 17,
['B'] => 18
)
)
Since you have two entries with the same new, when you hit the 2nd loop, it will simply add the other building name. If you can work with this layout, then your solution is very easy, it will take more steps to do it exactly as you showed. If you absolutely have to do it the way you showed, you need extra code to loop through the new array, find the building name, add the key in the correct place, but this will be slower if you have a large amount of data.
In my opinion, the way I presented it is a far easier way to look around the array too. If you wanted to know the apt value for A in "second_data" you can just do
$newarray['second_data']['A']
with your array layout, it would require a loop to search the array for "second_data" because you have no idea where it is.
I have a PHP array question regarding searching which I'm hoping some kind person can help me with...
The array shown below is an collection of arrays, e.g. order items. As I loop a separate array of orderIds I would like to return the appropriate array of products.
For example, if I request an orderId of 98305 it would return the arrays with the indexes of 2 & 3.
Are there any PHP functions to do this? I could loop each array and check the value and break out when it matches, but I feel this brings quite an overhead of performing multiple loops per orderId lookup.
Array
(
[0] => Array
(
[orderId] => 98303
[product] => Product A
)
[1] => Array
(
[orderId] => 98304
[product] => Product B
)
[2] => Array
(
[orderId] => 98305
[product] => Product C
)
[3] => Array
(
[orderId] => 98305
[product] => Product D
)
[4] => Array
(
[orderId] => 98306
[product] => Product A
)
[5] => Array
(
[orderId] => 98306
[product] => Product B
)
)
Any help appreciated.
D
array_filter()
$output = array_filter($input,function($a) {
return $a['orderId'] == 98305;
});
Replace 98305 with the desired ID.
Is there a way to foreach() through one array based on a matching value with a different key in another array? In this example, I have a category array ($cat_data) with cat_id as a key and an image array ($img_data) with category_id as a key.
Array (
[0] => Array (
[cat_id] => 1
[cat_name] => Category 1
)
[1] => Array (
[cat_id] => 2
[cat_name] => Category 2
)
)
Array (
[0] => Array (
[img_id] => 2
[img_name] => demo1.jpg
[img_label] => Demo 1
[category_id] => 2
[img_order] => 1
)
[1] => Array (
[img_id] => 3
[img_name] => demo2.jpg
[img_label] => Demo 2
[category_id] => 2
[img_order] => 2
)
[2] => Array (
[img_id] => 4
[img_name] => demo3.jpg
[img_label] => Demo 3
[category_id] => 1
[img_order] => 1
)
)
What I want is to output my display so it looks like the following:
Category 1
demo3.jpg
Category 2
demo1.jpg
demo2.jpg
Since I'm really not great at fully grasping arrays, I thought I'd try Stack, and I haven't been able to find an answer to my question, partially because I'm not sure what to ask for precisely. Any help??
The naïve way:
foreach ($cat_data as $cat) {
echo $cat['cat_name'];
foreach ($img_data as $img) {
if ($img['category_id'] != $cat['cat_id']) {
continue;
}
echo $img['img_name'];
}
}
This is rather inefficient, since it loops through the $imgs array several times, but easy and works.
More efficient:
$images = array();
foreach ($img_data as $img) {
$images[$img['category_id']][] = $img;
}
foreach ($cat_data as $cat) {
echo $cat['cat_name'];
if (isset($images[$cat['cat_id']])) {
foreach ($images[$cat['cat_id']] as $img) {
echo $img['img_name'];
}
}
}
This first groups all images by category into a new array, which you can then loop over directly once.
I would urge you to redesign your array when you fill them with data to instead look something like this.
Array (
[0] => Array (
[cat_id] => 1
[cat_name] => Category 1
[images] = Array(
[0] => Array (
[img_id] => 4
[img_name] => demo3.jpg
[img_label] => Demo 3
[category_id] => 1
[img_order] => 1
)
)
)
[1] => Array (
[cat_id] => 2
[cat_name] => Category 2
[images] = Array(
[0] => Array (
[img_id] => 4
[img_name] => demo3.jpg
[img_label] => Demo 3
[category_id] => 1
[img_order] => 1
)
[1] => Array (
[img_id] => 2
[img_name] => demo1.jpg
[img_label] => Demo 1
[category_id] => 2
[img_order] => 1
)
)
)
)
Then you would have all the relational data connected and would just have to loop through your array of categories and print the images associated with each one in turn. The numbered indexes could even be changed to associative names if the id of the catagory weren't important for example. Then the array could be indexed with the name of the category and just contain the images of that category.
If the images are to be used in other places where you initial layout of those fits better you could still use this layout for your main data graph. Just replace the actual data of the images in the images array under each category with a reference to the actual image object.