Optimizing PHP code with two foreach loops - php

I have an array that consists of the keys:
$countries = ['EU', 'UK', 'Asia'];
Another array that consists of further elements based on those keys:
$countries_array=['UK'=>['London', 'Birmingham', 'Manchester'], 'EU'=> ['Germany','Netherlands'] , 'Asia'=> ['Pakistan','Bangladesh','China']];
$mid_countries[];
I want to pass through all the elements, check if they are empty or not and then further create another array. I have written a code and it works fine. But it has foreach loops. Is there any way that I could optimize this code?
foreach ($countries as $each_country) {
if (!empty($countries_array["$each_country"][0])) {
foreach ($countries_array["$each_country"] as $value) {
$mid_countries[] = array("wildcard" => array("$each_country" => $value. "*"));
}
}
}
Expected result:
array(8) {
[0]=> array(1) { ["wildcard"]=> array(1) { ["EU"]=> string(8) "Germany*" } } [1]=> array(1) { ["wildcard"]=> array(1) { ["EU"]=> string(12) "Netherlands*"}}
[2]=> array(1) { ["wildcard"]=> array(1) { ["UK"]=> string(7) "London*" } } [3]=> array(1) { ["wildcard"]=> array(1) { ["UK"]=> string(11) "Birmingham*" } } [4]=> array(1) { ["wildcard"]=> array(1) { ["UK"]=> string(11) "Manchester*" } } [5]=> array(1) { ["wildcard"]=> array(1) { ["Asia"]=> string(9) "Pakistan*" } } [6]=> array(1) { ["wildcard"]=> array(1) { ["Asia"]=> string(11) "Bangladesh*"}}
[7]=> array(1) { ["wildcard"]=> array(1) { ["Asia"]=> string(6) "China*" } } }

I think you expected this (Code updated use its working in single loop)
foreach ($countries_array as $key=>$value) {
$tmp=implode('*#'.$key.'#',$value);
$tmp='#'.$key.'#'.$tmp."*";
$tmp=str_replace('#'.$key.'#',"\"}},{\"wildcard\":{\"".$key."\":\"",$tmp);
$result=$result.substr($tmp,3)."\"}}";
}
$result="[".ltrim($result,"\"}},")."]";
$result=json_decode($result,true);
print_r($result);

Related

Assigning specific element of multidimensional array in url in php

My goal is to get specific element/value from a multidimensional array and assign them in a URL in loop. I have already tried and was able to get elements in the array but this displays all elements. I only want to get specific, like nid and field_x values.
This is my link structure: http://localhost:8080/$nid/$field_x
Expected result:
http://localhost:8080/123/one
http://localhost:8080/789/three
This is my sample var_dump result
array(1) {
[0]=>
array(38) {
["nid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(123)
}
}
["vid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(456)
}
}
["field_x"]=>
array(1) {
[0]=>
array(4) {
["target_id"]=>
string(6) "One"
}
}
["field_y"]=>
array(1) {
[0]=>
array(4) {
["target_id"]=>
string(2) "Two"
}
}
}
[1]=>
array(38) {
["nid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(789)
}
}
["vid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(321)
}
}
["field_x"]=>
array(1) {
[0]=>
array(4) {
["target_id"]=>
string(6) "Three"
}
}
["field_y"]=>
array(1) {
[0]=>
array(4) {
["target_id"]=>
string(2) "Four"
}
}
}
}
You can use a foreach() and get the data using $values['nid'][0]['value'] or $values['field_x'][0]['target_id']:
foreach ($result as $values) {
$nid = $values['nid'][0]['value'];
$field_x = $values['field_x'][0]['target_id'];
echo "http://localhost:8080/$nid/$field_x" ;
}
Will outputs:
http://localhost:8080/123/One
http://localhost:8080/789/Three
You probably want to do something else than an echo, so you can create a new array:
$urls = [];
foreach ($result as $values) {
$nid = $values['nid'][0]['value'];
$field_x = $values['field_x'][0]['target_id'];
$urls[] = "http://localhost:8080/$nid/$field_x" ;
}
print_r($urls);

Output and use array elements from a REST Api call in php

I am calling a REST Api to get data using curl in php. It gives me the list of data/contents in the api in Array php format.
I was able to get single element value using $resultArray[0]['nid'][0]['value'];. But my goal is to get elements in all contents in the api.
Say I want to get the following elements in the nested arrays.
$resultArray[0]['nid'][0]['value'];
$resultArray[0]['vid'][0]['value'];
$resultArray[0]['cid'][0]['value'];
And use these values in a loop too.
I am trying to search how I can do it loop, and if anyone can provide sample code, that would be appreciated.
Update:
This is the sample result of var_dump:
array(1) {
[0]=>
array(38) {
["nid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(1)
}
}
["vid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(2)
}
}
["cid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(3)
}
}
["field"]=>
array(1) {
[0]=>
array(4) {
["target_id"]=>
int(4)
}
}
}
[1]=>
array(38) {
["nid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(11)
}
}
["vid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(22)
}
}
["cid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(33)
}
}
["field"]=>
array(1) {
[0]=>
array(4) {
["target_id"]=>
int(44)
}
}
}
[2]=>
array(38) {
["nid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(111)
}
}
["vid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(222)
}
}
["cid"]=>
array(1) {
[0]=>
array(1) {
["value"]=>
int(333)
}
}
["field"]=>
array(1) {
[0]=>
array(4) {
["target_id"]=>
int(444)
}
}
}
}
And I want to use these elements values in a loop.
Say my expected result is.
Test1 = "1", "2", "3"
Test2 = "11", "22", "33"
Test3 = "111", "222", "333"
These equivalent numbers should be comming from the element nid, vid, cid.
I dont just want to assign/echo these values in the result as I have array[100s] in one api call.
Since your array is a multidimensional array, you need to have nested foreach loops:
$test = 1;
foreach ($resultArray as $items) {
// Echo the current test number
echo "Test{$test} = ";
$values = [];
foreach ($items as $item) {
// Get the correct value.
if (array_key_exists('value', $item[0])) {
$values[] = $item[0]['value'];
continue;
}
if (array_key_exists('target_id', $item[0])) {
$values[] = $item[0]['target_id'];
continue;
}
}
echo '"' . implode('", "', $values) . '"' . "\n";
$test++;
}
Demo: https://3v4l.org/fnHlV

Foreach creating multi-level instead of single level array in PHP

I'm trying to gather a group of term_id's output in a foreach and create an array from them. I then want to update the taxonomy with the values in the array however the array is being created as multi-level. My code is as follows:
$updateTax = array();
foreach ($featuresArray as $key => $value) {
if ($key = 'en_value') {
$termResult = get_term_by('name', $value['en_value'], $taxonomy);
$term = $termResult->term_id;
$updateTax[] = array($term);
}
}
...which then gives this output:
var_dump($updateTax);
array(29) {
[0]=> array(1) {
[0]=> int(111) } [1]=> array(1) {
[0]=> int(116) } [2]=> array(1) {
[0]=> int(124) } [3]=> array(1) {
...
[0]=> int(408) } [25]=> array(1) {
[0]=> int(447) } [26]=> array(1) {
[0]=> int(520) } [27]=> array(1) {
[0]=> int(593) } [28]=> array(1) {
[0]=> int(628) }
}
...but I was expecting the following:
array(29) {
[0]=> int(111) }
[1]=> int(116) }
[2]=> int(124) }
[3]=> int(125) }
...
Bit puzzled so could do with some guidance please. Many thanks.
Replace the following line, where you are creating an individual array for each $term:
$updateTax[] = array($term);
With this:
$updateTax[] = $term;

PHP how to get value from array with foreach

I have array $result
array(2) {
["Smiley TV"]=>
array(2) {
["Speed"]=>
array(2) {
[0]=>
string(4) "9510"
[1]=>
string(5) "33775"
}
["Turbo"]=>
array(2) {
[0]=>
string(4) "2427"
[1]=>
string(5) "19696"
}
}
["Victory Media"]=>
array(1) {
["Speed"]=>
array(2) {
[0]=>
string(4) "4144"
[1]=>
string(5) "80445"
}
}
}
How with foreach i can get values. For example in the "Smyley TV" how i can result "Speed".
Also please write how i can get all data one by one. Thanks
You can fetch this way
foreach ($arrays as $array) {
echo $array['smyley TV'];
}

Foreach array organization/iteration

I have this array that I've tried iterating over and creating a new array:
array(233) {
[0]=>
array(2) {
["subject_id"]=>
int(138)
["relatedsubject_id"]=>
int(127)
}
[1]=>
array(2) {
["subject_id"]=>
int(138)
["relatedsubject_id"]=>
int(47)
}
[2]=>
array(2) {
["subject_id"]=>
int(138)
["relatedsubject_id"]=>
int(13)
}
[3]=>
array(2) {
["subject_id"]=>
int(138)
["relatedsubject_id"]=>
int(56)
}
[4]=>
array(2) {
["subject_id"]=>
int(154)
["relatedsubject_id"]=>
int(77)
}
[5]=>
array(2) {
["subject_id"]=>
int(154)
["relatedsubject_id"]=>
int(69)
}
[6]=>
array(2) {
["subject_id"]=>
int(154)
["relatedsubject_id"]=>
int(70)
}
[7]=>
array(2) {
["subject_id"]=>
int(154)
["relatedsubject_id"]=>
int(75)
I cut it short so it's not too obnoxious. This is the code I'm using now:
$subject_id = array();
foreach ($results as $mainKey => $subArrays) {
if(!isset($subject_id[$results[$mainKey]["subject_id"]])) {
$subject_id[$results[$mainKey]["subject_id"]] = array();
array_push($subject_id[$results[$mainKey]["subject_id"]], $results[$mainKey]["relatedsubject_id"]);
// $subject_id[$results[$mainKey]["subject_id"]][] = $results[$mainKey]["relatedsubject_id"];
}
}
var_dump($subject_id);
My results look like this:
array(111) {
[138]=>
array(1) {
[0]=>
int(127)
}
[154]=>
array(1) {
[0]=>
int(77)
}
Any ideas on why I'm only getting 1 value and how to modify to get each "relatedsubject_id" to fall in line with the corresponding "subject_id"? Thank you.
Edit
Expected Result:
array {
[138]=>
array(1) {
[0]=>
int(127)
[1]=>
int(47)
[2]=>
int(13)
[3]=>
int(56)
}
[154]=>
array(1) {
[0]=>
int(77)
[1]=>
int(69)
[2]=>
int(70)
[3]=>
int(75)
}
It seems you are trying to consolidate your subject ids and relatedsubject_ids. If thats the case, this may work for you.
$subject_id = array();
foreach ($results as $mainKey => $subArrays) {
if(!isset($subject_id[$results[$mainKey]['subject_id']])) {
$subject_id[$results[$mainKey]['subject_id']] = array('subject_id' => $results[$mainKey]['subject_id'], 'relatedsubject_id' => array());
}
$subject_id[$results[$mainKey]['subject_id']]['relatedsubject_id'][] = $results[$mainKey]["relatedsubject_id"];
}
Changed to your EDIT
$subject_id = array();
foreach ($results as $mainKey => $subArrays) {
if(!isset($subject_id[$results[$mainKey]['subject_id']])) {
$subject_id[$results[$mainKey]['subject_id']] = array();
}
$subject_id[$results[$mainKey]['subject_id']][] = $results[$mainKey]["relatedsubject_id"];
}
The reason why you were only getting one result is you had all your code in the if(!isset()) function. That should only not be set once. If that makes sense.

Categories