PHP Exercises: Check if a given array of integers and length 2, does not contain 15 or 20
96. Array Does Not Contain 15 or 20 Check
Write a PHP program to check if a given array of integers and length 2, does not contain 15 or 20.
Sample Solution:
PHP Code :
<?php
// Define a function named 'test' that takes an array of numbers as a parameter
function test($nums)
{
// Return true if the first element is not equal to 15 and not equal to 20,
// and the second element is not equal to 15 and not equal to 20
return $nums[0] != 15 && $nums[0] != 20 && $nums[1] != 15 && $nums[1] != 20;
}
// Check and display the result of calling 'test' with the array [12, 20]
var_dump(test([12, 20]));
// Check and display the result of calling 'test' with the array [14, 15]
var_dump(test([14, 15]));
// Check and display the result of calling 'test' with the array [11, 21]
var_dump(test([11, 21]));
?>
Explanation:
- Function Definition:
- A function named test is defined, which takes one parameter:
- $nums: an array of numbers.
- Return Condition:
- The function checks if:
- The first element of the array ($nums[0]) is not equal to 15 and not equal to 20.
- The second element of the array ($nums[1]) is not equal to 15 and not equal to 20.
- If all these conditions are true, the function returns true; otherwise, it returns false.
Output:
bool(false) bool(false) bool(true)
Flowchart:

For more Practice: Solve these Related Problems:
- Write a PHP script to verify that a two-element array does not include the numbers 15 or 20, returning a boolean result.
- Write a PHP function to scan a small array and output true if neither 15 nor 20 is present.
- Write a PHP program to evaluate an array of two numbers and return false if either 15 or 20 exists, true otherwise.
- Write a PHP script to check a two-element array for the absence of specific values (15 and 20) using conditional logic.
PHP Code Editor:
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