PHP Array Exercises : Get an array with the first key and value

Last update on December 20 2024 10:23:21 (UTC/GMT +8 hours)

Write a PHP function to get an array with the first key and value.

Sample Solution:

PHP Code:

<?php
// Function to extract and return the first element of an associative array
function array_1st_element($my_array)
{
  // Extract the first key of the array using list() and array_keys()
  list($k) = array_keys($my_array);

  // Create a new array with the first key and its corresponding value
  $result  = array($k=>$my_array[$k]);

  // Remove the first element from the original array
  unset($my_array[$k]);

  // Return the result array containing the first element
  return $result;
}

// Test array
$colors = array('c1'=>'Red','c2'=>'Green','c3'=>'Black');

// Call the function and display the result
print_r(array_1st_element($colors));

?>

Output:

Array                                                       
(                                                           
    [c1] => Red                                             
)

Flowchart:

PHP Code Editor:

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