Compare differences in arrays and add non-existent keys
php,multidimensional-array,array-difference
array_map comes to the rescue: $default_lang = 'ces'; $availables = array('ces','eng'); $result = array_map(function($el) use($default_lang, $availables) { foreach($availables as $lang) { if(!array_key_exists($lang, $el)) { // no translation! $el[$lang] = $el[$default_lang]; // set to copy of default } } return $el; // return updated }, $arr); Hope this helps....
Remove array elements that are present in another array
You can use .reject to exclude all banned words that are present in the redacted array: words.reject {|w| redacted.include? w} Demo If you want to get the list of banned words that are present in the words array, you can use .select: words.select {|w| redacted.include? w} Demo...
PHP more efficient algorithm than array_diff_assoc()
You can try array_filter: $updated = array(); $previous = array_filter($oldContact, function($v, $k) { if ($v != $newContact[$k]) { $updated[$k] = $newContact[$k]; return true; } return false; }, ARRAY_FILTER_USE_BOTH); array_filter will return the keys/values from the input array if the callback function we specify returns true during each key/value iteration and...
array_diff doesn't seem to be working for me
What you are currently doing is excluding the id key/value from the videos that have that youtube id, you are not removing those videos from $return. To remove videos with a given id you need to run an operation on $return you can do that with array_filter, array_diff_key or by...
PHP compare Arrray1 with Array2 and find difference. Then Fill the missing values of Array1 with zero's
php,arrays,comparison,array-difference
Try this, for example: $a1 = [ 1 => 'one', 2 => 'two', 3 => 'three',5=>'fayve', 6=>'six']; $a2 = [ 2 => 'two', 5=>'five']; print_r( array_diff($a1, $a2) ); $keys = array_keys($a1); foreach ($keys as $k) { if (!isset($a2[$k])) $a2[$k] = '0'; } print_r($a2); Output: Array ( [1] => one [3]...
Finding difference is not working
python,difference,array-difference
What you are doing wrong is - c = set(a).union(set(b)) d = set(a).intersection(set(b)) Please note a and b are still file descriptors, once you do set(a) , if you do set(a) again, you will get an empty set, because in the first call to set(a) , the complete file has...
How to compute difference of each point of a data series from the first point?
matlab,difference,array-difference
To subtract the first row from an entire array, use bsxfun: A = [ 12200 9400 12200 9400 12200 9400 12200 9400 12200 9400 12200 9400 12300 9400 12300 9400 12300 9400 12300 9300 12300 9300] differenceToFirstPoint = bsxfun(@minus, A, A(1,:)); %# to calculate the norm: normOfDifference = sqrt( sum(...
Comparing multidimensional arrays using specific key in php
php,arrays,multidimensional-array,comparison,array-difference
You could do something like this in PHP >= 5.5.0: $result = array_diff_key(array_column($array1, null, 'username'), array_column($array2, null, 'username') ); ...
comparing two arrays and return difference of arrays
You have an associative array and as such must use array_diff_assoc: $changes = array_diff_assoc($new, $old); ...
How to find products in one group but not the other
First of all, you have no need for your GROUP BY statement, so you can get rid of that. If you want to avoid second floor objects, you should select all products from the first floor at first, and add another subquery that filters out products that are also sold...
array_diff() strange behaviour
php,arrays,behavior,array-difference
From the docs: array array_diff ( array $array1 , array $array2 [, array $... ] ) Compares array1 against one or more other arrays and returns the values in array1 that are not present in any of the other arrays. In your example, $modified2 has an entry 'finished' which has...
Remove value from array in magento field
php,arrays,magento,array-difference
Ok sorted it out yeah. Code below. changed $FollowProfilesArray = array($model2->getFollowProfiles()); to //explode out the attribute value $FollowProfilesArray = explode(",","".$model2->getFollowProfiles().""); and changed foreach($remove_from_array as $key => $value){ $select .= ''.$value.',';} to //so if $value is NULL save no value id, stoppped the adding of , to the attribute value foreach($remove_from_array...
2 arrays: keep only elements with different value
You can use array_udiff with a function. Computes the difference of arrays by using a callback function for data comparison. Returns an array containing all the values of the first array that are not present in any of the other arguments. The code: // Setup two arrays as per your...
get the diff between two arrays in PHP
I solved this as following, $array1 = array( array( 'StudentId' => 1 ), array( 'StudentId' => 2 ) ); $array2 = array( array( 'StudentId' => 1 )); foreach($array1 as $a=>$val){ if(in_array($val,$array2)){ unset($array1[$a]); } } var_dump(array_values($array1)); ...
What array structure is in C# but not in C/C++/Java? [closed]
java,c#,c++,c,array-difference
C++ So this suggests that there's no jagged arrays in C++ By the same reading, the block of text suggests that C++ doesn't have single dimensional arrays. This is clearly absurd! C++ has both... You clearly can make a int**, that is a pointer to a pointer (so an "array"...
How to get the difference of specific data types encoded into arrays
Just try with: $output = array_udiff($arraySecond, $arrayFirst, function($a, $b){ return strcmp($a['NAME'], $b['NAME']);; }); Output: array(2) { [0] => array(3) { 'ID' => int(543547564) 'NAME' => string(6) "Name_1" 'PREVIEW_TEXT' => string(6) "Text_1" } [2] => array(3) { 'ID' => int(333876833) 'NAME' => string(6) "Name_3" 'PREVIEW_TEXT' => string(6) "Text_3" } } ...