$wp->get_results will return an array and formats the array depends if the second parameter is specified; if not, it is default to an object, right? But my question is it possible to retrieve results then store it the an array? Like this $arr = array(1,2,3,4,5)? What my main concern is this.. I want to search in the array if the value is present.
Now I can't do a in_array if the returned results is like this.
$arr = array(array('1'), array('2'), array('3'), array('4'), array('5'));
Any help would be much appreciated. Thanks.
EDITED
my $arr would look like this
Array ( [0] => stdClass Object ( [code] => 8 [id] => ) [1] => stdClass Object ( [code] => 1 [id] => ) )
EDITED
Found a solution:
if (in_array(array('1'), $arr) {
// found value
}
You can not match directly, for matching, it you will have to do something like this :
$arr = array(array('1'), array('2'), array('3'), array('4'), array('5'));
foreach($arr as $newar)
{
if (in_array('2',$newar))
{
echo 'hello';
}
}
I'm not really following the problem here, but assuming you want to find a specific value inside the wpdb results......
foreach($arr as $key => $row) {
if($row->code == $VALUE_YOU_WANT_TO_MATCH) {
// do something
break;
}
}
Note: $arr is an array of objects, its not a multidimensional array.
say for example I want to check if if code = 1 exist in my result.
foreach($arr as $myarr){
if ($myarr->code == "1"){
echo "record was found\n";
break;//this line makes the foreach loop end after first success.
}
}
Related
Can i make multidimensionalarrry to assosiative array, Right now i am getting following result
Array
(
[0] => Array
(
[id] => 1
[minimum_marks] => 55
[maximum_marks] => 65
)
[1] => Array
(
[id] => 2
[minimum_marks] => 44
[maximum_marks] => 70
}
)
I just want to put all values in single, i want result like following array
Array
(
[id] => 1
[minimum_marks] => 55
[maximum_marks] => 65
)
Array
(
[id] => 2
[minimum_marks] => 44
[maximum_marks] => 70
)
Here is my code,My code not showing only one record with loop (code should showing all minimum_marks and maximum_marks), where i am wrong ?
$result = $query->result_array();
$simpleArray = [];
foreach ($result as $skuArray) {
$simpleArray['minimum_marks'] = $skuArray['minimum_marks'];
$simpleArray['maximum_marks'] = $skuArray['maximum_marks'];
}
print_R($simpleArray);
I don't know why are you expecting this output. But my suggestion, if you want it really?
$simpleArray = [];
foreach ($result as $skuArray) {
$simpleArray['minimum_marks'] = $skuArray['minimum_marks'];
$simpleArray['maximum_marks'] = $skuArray['maximum_marks'];
print_R($simpleArray);
}
Print the value inside loop, so it wont push and it wont create multiple array. every time, it will overwrite. But please be sure, finally you get last array value only on the simpleArray. Hope you understood!
Let me explain with example. If you want to display the marks in table, I will suggest you to return directly like below instead of creating variable and retrieving it again.
echo '<table>
<tr><th>Min Marks</th><th>Max Marks</th></tr>';
foreach ($result as $skuArray) {
$minMarks = $skuArray['minimum_marks'];
$maxMarks = $skuArray['maximum_marks'];
echo '<tr><td>'.$minMarks.'</td><td>'.$minMarks.'</td></tr>';
}
echo '</table>';
I don't really understand what you want.
If you want to get your array in two different variables you can try this:
Use dynamic variables, the name of the variable is dynamically generated in your loop.
foreach($result as $key => $_array){
//$key is your inder of you multidimensional
$name_variable = '_array_number_'.$key; //Name of the variable
$$name_variable = $_array; //Instanciate dynamic variable
}
//You got now this two array
print_r($_array_number_0);
print_r($_array_number_1);
But please be more precise next time with what you expect and why you need this.
By the way, what happened to your code is that in the first loop you instanciate 'minimum_marks' and 'maximum_marks' in $_simple_array.
But in your second loop you overwrite the value of 'minimum_marks' and 'maximum_marks'.
As a newbie, does anyone have any good tutorials to help me understand different levels of an array? What I'm trying to learn is how to echo different levels, e.g. here is the output array:
Array
(
[meta] =>
Array
(
[total_record_count] => 1
[total_pages] => 1
[current_page] => 1
[per_page] => 1
)
[companies] =>
Array
(
[0] =>
Array
(
[id] => 291869
[url] => https://api.mattermark.com/companies/291869
[company_name] => gohenry.co.uk
[domain] => gohenry.co.uk
)
)
[total_companies] => 1
[page] => 1
[per_page] => 1
)
And here is the code to parse the array:
foreach($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 $son;
}
hope it will help you to understand
This is what I get after a print_r($myArray) (wrapped in pre) on my array.
Array
(
[0] => 203.143.197.254
[1] => not/available
)
Array
(
[0] => 40.190.125.166
[1] => articles/not/a/page
)
Array
(
[0] => 25.174.7.82
[1] => articles/not/a/page
)
How would I return or echo just the first two in this case (no regex), given the fact that I would like to only output each array whose [1] value has not been echoed before?
My list as far more entries and $myArray[1] is sometimes the same, I want to skip echoing the same thing.
I have tried array_unique but I can't get it to work as param 1 is expected to be an array.
print_r(array_unique($myArray));
This works. Didn't do a full copy paste job but hopefully you get the idea of the logic
$echoed = array();
foreach($array as $arr) {
if(!in_array($arr[1],$echoed)) {
echo $arr[1];
$echoed[] = $arr[1];
}
}
$echoedBefore = array();
print_r(array_filter($myArray, function($entry) {
global $echoedBefore;
$alreadyEchoed = in_array($entry[1], $echoedBefore);
if (!$alreadyEchoed) {
$echoedBefore[] = $entry[1];
}
return !$alreadyEchoed;
}));
supposing I have an array like the one below:
Array
(
[0] => Array
(
[id] => 1
[title] => Group1
[description] => This is the group1.
)
[1] => Array
(
[id] => 2
[title] => Group2
[description] => This is group2.
)
)
Supposing the title is known as "Group2". How would I able to determine using PHP its equivalent description (that is "This is group2") if it doesn't have any idea of its ,key,id, etc. only the title?
Thanks for any help.
Try this :
$title = "Group2";
foreach($your_array as $val){
if($val['title'] == $title){
echo $val['description'];
break; //cut back on unnecessary looping
}
}
Try like this
foreach($myarray as $val){
if($val['title'] == "Group2"){
echo 'This is description '.$val['description'];
}
}
You'll have to iterate over the main array and scan it for that title.
Assuming your main array is called $groups :
$title = 'Group2';
foreach($groups as $key => $group){
if ($group['title'] == $title){
$groupDescription = $group['description'];
// if you need to reference this group again, save it's key.
$groupKey = $key;
}
}
You can insert a break command after you have found the group you are looking for to terminate the loop so that it will not continue to scan the array after you have found the one you are looking for.
I have a multidimensional array and I'm trying to find out how to simply "echo" the elements of the array. The depth of the array is not known, so it could be deeply nested.
In the case of the array below, the right order to echo would be:
This is a parent comment
This is a child comment
This is the 2nd child comment
This is another parent comment
This is the array I was talking about:
Array
(
[0] => Array
(
[comment_id] => 1
[comment_content] => This is a parent comment
[child] => Array
(
[0] => Array
(
[comment_id] => 3
[comment_content] => This is a child comment
[child] => Array
(
[0] => Array
(
[comment_id] => 4
[comment_content] => This is the 2nd child comment
[child] => Array
(
)
)
)
)
)
)
[1] => Array
(
[comment_id] => 2
[comment_content] => This is another parent comment
[child] => Array
(
)
)
)
<pre>
<?php print_r ($array); ?>
</pre>
It looks like you're only trying to write one important value from each array. Try a recursive function like so:
function RecursiveWrite($array) {
foreach ($array as $vals) {
echo $vals['comment_content'] . "\n";
RecursiveWrite($vals['child']);
}
}
You could also make it a little more dynamic and have the 'comment_content' and 'child' strings passed into the function as parameters (and continue passing them in the recursive call).
Proper, Better, and Clean Solution:
function traverseArray($array)
{
// Loops through each element. If element again is array, function is recalled. If not, result is echoed.
foreach ($array as $key => $value)
{
if (is_array($value))
{
Self::traverseArray($value); // Or
// traverseArray($value);
}
else
{
echo $key . " = " . $value . "<br />\n";
}
}
}
You simply call in this helper function traverseArray($array) in your current/main class like this:
$this->traverseArray($dataArray); // Or
// traverseArray($dataArray);
source: http://snipplr.com/view/10200/recursively-traverse-a-multidimensional-array/
print_r($arr) usually gives pretty readable result.
if you wanted to store it as a variable you could do:
recurse_array($values){
$content = '';
if( is_array($values) ){
foreach($values as $key => $value){
if( is_array($value) ){
$content.="$key<br />".recurse_array($value);
}else{
$content.="$key = $value<br />";
}
}
}
return $content;
}
$array_text = recurse_array($array);
Obviously you can format as needed!
There are multiple ways to do that
1) - print_r($array); or if you want nicely formatted array then
echo '<pre>'; print_r($array); echo '<pre/>';
//-------------------------------------------------
2) - use var_dump($array) to get more information of the content in the array like datatype and length.
//-------------------------------------------------
3) - you can loop the array using php's foreach(); and get the desired output.
function recursiveFunction($array) {
foreach ($array as $val) {
echo $val['comment_content'] . "\n";
recursiveFunction($vals['child']);
}
}
Try to use var_dump function.
If you're outputting the data for debugging and development purposes, Krumo is great for producing easily readable output. Check out the example output.
Recursion would be your answer typically, but an alternative would be to use references. See http://www.ideashower.com/our_solutions/create-a-parent-child-array-structure-in-one-pass/