PHP Exercises: Check if a triple is presents in an array of integers or not
PHP Basic Algorithm: Exercise-38 with Solution
Write a PHP program to check if a triple is presents in an array of integers or not. If a value appears three times in a row in an array it is called a triple.
Sample Solution:
PHP Code :
<?php
// Define a function that checks for consecutive identical elements in an array
function test($nums)
{
// Calculate the length of the array
$arra_len = sizeof($nums) - 1;
// Initialize a variable to store the current element
$n = 0;
// Iterate through the array up to the second-to-last element
for ($i = 0; $i < $arra_len; $i++)
{
// Retrieve the current element
$n = $nums[$i];
// Check if the current, next, and next-next elements are identical
if ($n == $nums[$i + 1] && $n == $nums[$i + 2])
{
// Return true if the condition is met
return true;
}
}
// Return false if the condition is not met
return false;
}
// Test the function with different arrays
var_dump(test(array(1, 1, 2, 2, 1)));
var_dump(test(array(1, 1, 2, 1, 2, 3)));
var_dump(test(array(1, 1, 1, 2, 2, 2, 1)));
?>
Sample Output:
bool(false) bool(false) bool(true)
Visual Presentation:
Flowchart:
PHP Code Editor:
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Previous: Write a PHP program to count the number of two 5's are next to each other in an array of integers. Also count the situation where the second 5 is actually a 6.
Next: Write a PHP program to compute the sum of the two given integers. If the sum is in the range 10..20 inclusive return 30.
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