Can you return an array in PHP?

Can you return an array in PHP?

In PHP you can return one and only one value from your user functions, but you are able to make that single value an array, thereby allowing you to return many values.

How do you find the key of an array?

The array_key_exists() function is used to check whether a specified key is present in an array or not. The function returns TRUE if the given key is set in the array. The key can be any value possible for an array index.

What is array_keys () used for?

The array_keys() function returns an array containing the keys.

What is key in PHP array?

The key() function simply returns the key of the array element that’s currently being pointed to by the internal pointer. It does not move the pointer in any way. If the internal pointer points beyond the end of the elements list or the array is empty, key() returns null .

Which function will return only and associative array?

To extract the only values from an associative array, we use array_values() function, it returns a new arrays with numeric indexes (starting from 0 index) and values. Syntax: array_values(array);

How does return work in PHP?

The return keyword ends a function and, optionally, uses the result of an expression as the return value of the function. If return is used outside of a function, it stops PHP code in the file from running.

How do you return an array of data?

How to return an array in Java

  1. import java.util.Arrays;
  2. public class ReturnArrayExample1.
  3. {
  4. public static void main(String args[])
  5. {
  6. int[] a=numbers(); //obtain the array.
  7. for (int i = 0; i < a.length; i++) //for loop to print the array.
  8. System.out.print( a[i]+ ” “);

Which array has named key in PHP?

Associative arrays are arrays that use named keys that you assign to them.

Which function is used to return a subset of input array in PHP?

PHP | array_keys() Function The array_keys() is a built-in function in PHP and is used to return either all the keys of and array or the subset of the keys.

Which function would return the number of elements of an array?

The count() function returns the number of elements in an array.

How to set value as key in PHP array?

Definition and Usage. The array_keys () function returns an array containing the keys.

  • Syntax
  • Parameter Values. Used with the value parameter. Not depending on type,the number 5 is the same as the string “5”.
  • Technical Details. The strict parameter was added in PHP 5.0
  • More Examples

    • How to create an array within array in PHP?

    The Basics. There are two different ways of creating arrays.

  • Working With Keys and Values.
  • Make Your Code Shorter.
  • Filtering Functions.
  • Walking Through the Arrays.
  • Joining the Arrays.
  • Do the Math With Array Values.
  • Generating Arrays.
  • Sorting Arrays.
  • Combining Array Functions Like a Boss.

    • How to echo or print an array in PHP?

    – Using foreach loop – Using print_r () function – Using var_dump () function

    How to split a string into an array in PHP?

    Parameters. It is an optional parameter. If not passed,the function will consider this length as 1 by default.

  • Return Value. This function returns an array that contains the pieces of the original string.
  • Example
  • Input:
  • Output:
  • Input:
  • Output: The following example illustrates the working of the str_split () function to convert string to array in PHP.