Menu
I need to return multiple values from a function, therefore I have added them to an array and returned the array.
<? function data(){ $a = "abc"; $b = "def"; $c = "ghi"; return array($a, $b, $c); } ?> How can I receive the values of $a, $b, $c by calling the above function?
856
Access Array Elements You can access an array element by referring to its index number. The indexes in NumPy arrays start with 0, meaning that the first element has index 0, and the second has index 1 etc.
Array elements are accessed by using an integer index. Array index starts with 0 and goes till the size of the array minus 1. The name of the array is also a pointer to the first element of the array.
Just divide the number of allocated bytes by the number of bytes of the array's data type using sizeof() . int numArrElements = sizeof(myArray) / sizeof(int);
Return Array from Functions in C++ C++ does not allow to return an entire array as an argument to a function. However, you can return a pointer to an array by specifying the array's name without an index.
Different ways of accessing array elements in C++ 1 Using pointer 2 (arr+1) 3 Using a little manipulation i [arr] for using arrays and the reason behind that. More ...
3. Using std::array For std::array in C++, returning the array name from a function actually translates into the the whole array being returned to the site of the function call. Hence it is clear from the output, that the array return by the function func () was successful.
Keypoint 1: Method returning the array must have the return type as an array of the same data type as that of the array being returned. The return type may be the usual Integer, Double, Character, String, or user-defined class objects as well.
An array is a data structure that consists of a group of elements of the same data type such that each element of the array can be identified by a single array index or key.
You can add array keys to your return values and then use these keys to print the array values, as shown here:
function data() { $out['a'] = "abc"; $out['b'] = "def"; $out['c'] = "ghi"; return $out; } $data = data(); echo $data['a']; echo $data['b']; echo $data['c']; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
