I’m making a survey website where users provide answers from 0 to 10. I was experimenting with the casts to store all questions and the answer in 1 row. This is what the scores field looks like in the database This is as expected. The “5” and “6” are ID’s of the question an…
Tag: arrays
Call to a member function save() on array laravel
Im doing the update method. When I tried to update the specific data, im getting this error “Call to a member function save() on array”. Why? Is there’s something missing in my codes? I also tried to print_r the $result variable, it has a value.. View Controller Route Answer This way can hel…
How can I create Associative array in Swift 3
Hi I am very new to Swift and am trying to use array. I want to create an array in swift3 similar to this PHP array as below: In the array above the country name are dynamic variables. Answer These are called dictionaries in Swift, and you can create one like this: EDIT: Swift is great at inferring the variab…
Compare two arrays and create an associative array of true/false values
I want to compare the values of two flat, indexed arrays and generate a new array where the keys are the original values from the first array and the values are boolean values indicating whether the same value occurred in both origibal arrays. I tried to compare the arrays with the array_diff() function but i…
Why does array_uintersect() compare elements between array1 & array2, array1 & array1, and array2 & array2?
Test script Actual Result Expected Result In other words, what I am expecting to be passed to the callback is the current element of the left array, and the current element of the right array. Furthermore, I would expect the same logic to apply if I were to pass an additional array to array_uintersect –…
Multidimensional indexed array to associative array depending on column value
I have a multidimensional indexed array. Each element is an associative array with an id column which is unique between elements (its value never repeats within the array). My goal is to convert this array into a multidimensional associative array, indexed by id values. My best attempt so far is to loop over …
htmlspecialchars() on array of values fetch
Lets say I fetch data with PDO $stmt = $this->dbh->prepare(“SELECT * FROM posts”); $stmt->execute(); $result = $stmt->fetchAll(); return $result; How should I use …
Sum column values from multiple arrays
I have an arrays with dynamic name. My array could be more than 3, depends and array variable should be unique I need to get an output like this: Answer Why aren’t you using a multidimensional array? In this case you will have an array of arrays: You can go with nested for loops: The output is Now, if y…
How to convert the string representation of array to normal array
I have string representation of an array in a file. I need to convert it to array . How to achieve this. For example $arr = ‘array(1,2,3,4,5,6)’; echo getType($arr); // string //convert $arr to …
JSON_ENCODE can’t encode large array
I need help with encoding large array into JSON using PHP’s json_encode(). The array is from a local Database. I am using JS to parse JSON. However, the PHP script that handles array to JSON format stops if the dataset is too big. (i.e 100,000 Results). I tried to up my memory_limit to -1 and still does…