Ok so I have been struggling with this for hours now and I cannot seem to figure out what I'm trying to do. I have an array with many percent values placed inside and I'm printing out the first 5 of them. The $percent variables are acquired through similar_text
$array=array($percent12, $percent13, $percent14,
$percent15, $percent16, $percent17,
$percent18, $percent19, $percent110,
$percent111, $percent112, $percent113,
$percent114, $percent115, $percent116,
$percent117, $percent118, $percent119,
$percent120);
print_r(array_slice($array,0,5));
and it outputs like this:
Array ( [0] => 36.015505697169 [1] => 2.4181626187962 [2] => 2.4181626187962 [3] => 5.2153134902083 [4] => 100 )
So what i'm trying to figure out here is if it's possible to print the results of my array as they are listed above. example output would look like this:
Array ( [percent12] => 36.015505697169 [percent13] => 2.4181626187962 [percent14] => 2.4181626187962 [percent15] => 5.2153134902083 [percent16] => 100 )
i feel like this isn't possible, but if not, is there a way to assign the
[0]=> 36.015505697169 [1]=> 2.4181626187962
...etc to output something else say like:
[web0]=> 36.015505697169 [web1] => 2.4181626187962
Please help!! It's driving me crazy!!
You need to make it an associative array:
$array=array('percent12' => $percent12,
'percent13' => $percent13,
...);
I recommend using array_combine()
Basically you're just going to setup your new array with the keys, and pass in your current array for the values, thus creating a new array with the keys you want in the right place.
Try like
$myArr = array_slice($array,0,5);
$i = 0;
foreach($myArr as $key => $value) {
$newArr['web'.$i++] = $value;
}
print_r($newArr);
Related
I'm using ACF Pro plugin for Wordpress and use repeater fields.
With this code I get all the field values and additional info in an array:
$fields = get_field_object('slideshow');
With this code I can narrow it down to what I want to achieve:
print_r($fields[value];
By now I get this array below:
Array
(
[0] => Array
(
[videoWebm] => /wc/data/uploads/sea.webm
[videoMp4] => /wc/data/uploads/sea1.mp4
[text] => Test1
[kund] => Kund1
[link1] =>
[link2] =>
)
[1] => Array
(
[videoWebm] => /wc/data/uploads/turntable.webm
[videoMp4] => /wc/data/uploads/turntable.mp4
[text] => Test2
[kund] => Kund2
[link1] =>
[link2] =>
)
)
it can grow more - like [2] => Array, [3] => Array etc.
I want to access all videoWebm & videoMp4 values.
As of now I know how to access a specific value - for example:
print_r($fields[value][0][videoWebm]);
But I can't figure out how to access all of them and put them in two new arrays. One for videoWebm values and one for videoMp4 values. The problem for me is the index value when I try to loop thru the array. I don't know if this really is the way to go...
Anyone suggestions?
Best, Niklas
You can use foreach:
foreach ($fields[value] as $field) {
$videoWebms[] = $field['videoWebm']
$videoMp4s[] = $field['videoMp4'];
}
Or as splash58 said, use array_column:
$vieoWebms = array_column($fields[value], 'videoWebm');
$vieoMp4s = array_column($fields[value], 'videoMp4');
I would highly recommend you learn about php's foreach, it is very powerful and widely used (maybe a little too widely).
https://www.google.com/search?q=php%20foreach
To get the value from repeater use this :
$slides = get_field('slideshow');
if($slides){
foreach($slides as $slide){
echo $slide['videoWebm'];
echo $slide['text'];
echo $slide['kund]'];
echo $slide['link1'];
echo $slide['link2'];
}
}
As a newbie, does anyone have any good tutorials to help me understand different levels of an array? What I'm trying to learn is how to echo different levels, e.g. here is the output array:
Array
(
[meta] =>
Array
(
[total_record_count] => 1
[total_pages] => 1
[current_page] => 1
[per_page] => 1
)
[companies] =>
Array
(
[0] =>
Array
(
[id] => 291869
[url] => https://api.mattermark.com/companies/291869
[company_name] => gohenry.co.uk
[domain] => gohenry.co.uk
)
)
[total_companies] => 1
[page] => 1
[per_page] => 1
)
And here is the code to parse the array:
foreach($jsonObj as $item)
{
echo $item['total_companies'];
}
I'm really struggling to find the structure and how to output each items, e.g. tried things like:
echo $item[0]['total_companies'];
echo $item['companies'][0]['id'];
Any help or pointers would be greatly received.
Well, Lets start, You have a multi-dimensional array. For a multi-dimensional array you need to use looping e.g: for, while, foreach. For your purpose it is foreach.
Start with the array dimension, Array can be multi-dimension, Like you have multi-dimension. If you have an array like below, then it is single dimension.
array(
key => value,
key2 => value2,
key3 => value3,
...
)
Now, How can you know what is a multi-dimension array, If you array has another array as child then it is called multi-dimensional array, like below.
$array = array(
"foo" => "bar",
42 => 24,
"multi" => array(
"dimensional" => array(
"array" => "foo"
)
)
);
Its time to work with your array. Suppose you want to access the value of company_name, what should you do?? Let your array name is $arr.
First you need to use a foreach loop like:
foreach($arr as $key => $val)
The keys are (meta, companies, total_companies...), they are in the first dimension. Now check if the key is company_name or not, if it matches than you got it. Or else you need to make another loop if the $val is an array, You can check it using is_array.
By the same processing at the last element your loop executes and find your value.
Learning
Always a good idea to start with the docs:
arrays: http://php.net/manual/en/language.types.array.php
foreach: http://php.net/manual/en/control-structures.foreach.php
As for tutorials, try the interactive tutorial over at codecademy: https://www.codecademy.com/learn/php
Unit 4 has a tutorial on arrays
Unit 11 has a lesson on advanced arrays.
Your code
As for your code, look at the following which I will show you your array structure and how to access each element. Perhaps that will make things clearer for you.
So lets say your array is named $myArray, see how to access each part via the comments. Keep in mind this is not php code, I'm just showing you how to access the array's different elements.
$myArray = Array
(
// $myArray['meta']
[meta] => Array (
// $myArray['meta']['total_record_count']
[total_record_count] => 1
// $myArray['meta']['total_pages']
[total_pages] => 1
// $myArray['meta']['current_page']
[current_page] => 1
// $myArray['meta']['per_page']
[per_page] => 1
)
// $myArray['companies']
[companies] => Array (
// $myArray['companies'][0]
[0] => Array (
// $myArray['companies'][0]['id']
[id] => 291869
// $myArray['companies'][0]['url']
[url] => https://api.mattermark.com/companies/291869
// $myArray['companies'][0]['company_name']
[company_name] => gohenry.co.uk
// $myArray['companies'][0]['domain']
[domain] => gohenry.co.uk
)
)
// $myArray['total_companies']
[total_companies] => 1
// $myArray['page']
[page] => 1
// $myArray['per_page']
[per_page] => 1
)
As for your for each loop
foreach($jsonObj as $item)
{
echo $item['total_companies'];
}
What the foreach loop is doing is looping through each first level of the array $jsonObj, so that would include:
meta
companies
total_companies
page
per_page
Then within the curly braces {} of the foreach loop you can refer to each level by the variable $item.
So depending on what you want to achieve you need to perhaps change your code, what is it you're trying to do as it's not really clear to me.
As for the code within the loop:
echo $item['total_companies'];
It won't work because you're trying to access an array with the index of total_companies within the first level of the $jsonObj array which doesn't exist. For it to work your array would have to look like this:
$jsonObj = array (
'0' => array ( // this is what is reference to as $item
'total_companies' => 'some value'
)
)
What you want to do is this:
foreach($jsonObj as $item)
{
echo $jsonObj['total_companies'];
}
As for your final snippet of code:
echo $item[0]['total_companies'];
Answered this above. Access it like $jsonObj['total_companies'];
echo $item['companies'][0]['id'];
If you want to loop through the companies try this:
foreach($jsonObj['companies'] as $item)
{
// now item will represent each iterable element in $jsonObj['companies]
// so we could do this:
echo $item['id'];
}
I hope that all helps! If you don't understand please make a comment and I'll update my answer.
Please take a look in to here and here
Information about php arrays
Try recursive array printing using this function:
function recursive($array){
foreach($array as $key => $value){
//If $value is an array.
if(is_array($value)){
//We need to loop through it.
recursive($value);
} else{
//It is not an array, so print it out.
echo $value, '<br>';
}
}
}
if you know how deep your array structure you can perform nested foreach loop and before every loop you have to check is_array($array_variable), like :
foreach($parent as $son)
{
if(is_array($son))
{
foreach($son as $grandson)
{
if(is_array($son))
{
foreach($grandson as $grandgrandson)
{
.....
......
.......
}
else
echo $grandson;
}
else
echo $parent;
}
else
echo $son;
}
hope it will help you to understand
I am quite new with PHP and I am trying to read something form an API.
At the moment I use
$homepage = file_get_contents('http://www.site.com');
echo $homepage
This returns something which looks like this:
Array
(
[0] => Array
(
[name] => myname
[user_id] => 31232
)
[1] => Array
(
[name] => anothername
[user_id] => 23534
)
)
So here is what I want: I only want to read the [name] => x and leave the rest, so I tried a for loop within str_replace, but all I got were errors.
I hope someone is able to help me
Edit:
I just saw I could set is as a json text too, it returns something like
[{"name":"myname","user_id":"31232"},{"name":"anothername","user_id":"23534"}]
Edit2: Thank you Tuga, that was exactly what I was searching for :) I can't upvote, since my reputaion is below 15, is there another way for me to show your answer helped?
$array = json_decode($homepage); will return an array, then you can loop the array containing objects and use 'name' attribute :
foreach ($array as $obj) echo $obj->name;
i want to restructure my array so that it looks better in a json
here is a print_r of my current variable:
Array
(
[0] => Array
(
[item_id] => 2
)
[1] => Array
(
[item_id] => 1
)
[2] => Array
(
[item_id] => 1
)
)
i want to reconstruct it be like this or similar:
EDIT
Array
(
[item_id] = array([0]=>'2',[1]=>'1', [2]=>'1');
)
sorry for my poor english m(_ _)m
i just want the item_id to have multiple values.
The hurdle
You actually can't in any way produce the output that you desire, since the key needs to be unique.
You can't use a key of item_id more than once, every time you try and set it, it will override what was in there last.
Think about it, how do you then look up the item with key of item_id, you can't, because three things would have that same key.
If the only reason is for cosmetics, I'd leave the output as you currently have it, although it may look a little messy in your JSON, it works.
A different approach
The best you can hope, is to get an output of:
'item_id' => array(
2,
1,
1
)
You can do this with the help of the array_map function:
$array = array('item_id' => array_map('current', $array));
This can be accomplished using this code.
$a['item_id'] = array();
foreach($arr as $key=>$val) {
$a['item_id'][] = $val['item_id'];
}
print_r($a);
$array = array('item_id' => array_map('current', $array));
I have an Array List that I want to output like my example below. How can I achieve it in PHP?
Array List:
array(
[0] => First,
[1] => Second,
[2] => Third,
)
Want to output like this:
array(
[First] => First,
[Second] => Second,
[Third] => Third
)
Thanks,
steamboy
You can use array_combine() and pass two copies of your original array:
$new_list = array_combine($list, $list);
print_r($new_list);
Maps the contents of the first argument as keys and the contents of the second argument as values, in their defined order.
I haven't tested it, but this should work
foreach ($array as $key => $value) {
$array[$value] = $value;
unset($array[$key]);
}
That should do it
That is redundancy at its finest. It makes little sense to have keys matching their values, and probably highlights the need for a design change, or a potential optimisation somewhere in your application. Turning this:
array(
[0] => First,
[1] => Second,
[2] => Third,
)
into this:
array(
[First] => First,
[Second] => Second,
[Third] => Third
)
effectively reduces the amount of information you are storing, since you the developer know in advance that keys should match values.