w3resource

PHP Exercises: Check a given array of integers of length 1 or more and return true if 10 appears as either first or last element in the given array


86. Check if Array Starts or Ends with 10

Write a PHP program to check a given array of integers of length 1 or more and return true if 10 appears as either first or last element in the given array.

Sample Solution:

PHP Code :

<?php
// Define a function named 'test' that checks if the first or the last element of an array is equal to 10
function test($nums)
{ 
    // Check if the first element of the array is equal to 10 or the last element is equal to 10
    return $nums[0] == 10 || $nums[sizeof($nums) - 1] == 10;
}

// Test the 'test' function with different arrays, then display the results
var_dump(test([10, 20, 40, 50]));
var_dump(test([5, 20, 40, 10]));
var_dump(test([10, 20, 40, 10]));
var_dump(test([12, 24, 35, 55]));
?>

Explanation:

  • Function Definition:
    • The function test is defined with one parameter:
      • $nums: an array of numbers.
  • Check Conditions:
    • The function checks:
      • Condition: If the first element of the array ($nums[0]) is equal to 10.
      • Condition: If the last element of the array ($nums[sizeof($nums) - 1]) is equal to 10.
      • The expression returns true if either condition is met, otherwise it returns false.
  • Return Statement:
    • The result of the logical OR operation (||) between the two conditions is returned directly.

Output:

bool(true)
bool(true)
bool(true)
bool(false)

Flowchart:

Flowchart: Check a given array of integers of length 1 or more and return true if 10 appears as either first or last element in the given array.

For more Practice: Solve these Related Problems:

  • Write a PHP script to verify if the first or last element in an integer array equals 10 and return a boolean result.
  • Write a PHP function to check the boundaries of an array for the number 10 using direct indexing.
  • Write a PHP program to extract the first and last values of an array and compare them against 10.
  • Write a PHP script to determine if either end of an array is 10 and output true if the condition is met.

PHP Code Editor:



Contribute your code and comments through Disqus.

Previous: Write a PHP program to create a new string from a given string. If the first or first two characters is 'a', return the string without those 'a' characters otherwise return the original given string.
Next: Write a PHP program to check a given array of integers of length 1 or more and return true if the first element and the last element are equal in the given array.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.