PHP Exercises: Check whether a given array of integers contains 5's and 7's

Last update on April 16 2025 12:55:17 (UTC/GMT +8 hours)

111. Contains Both 5 and 7 in Array

Write a PHP program to check whether a given array of integers contains 5's and 7's.

Sample Solution:

PHP Code :

<?php
// Define a function named 'test' that takes an array of numbers as a parameter
function test($nums)
 { 
    // Iterate through the elements of the array using a for loop
    for ($i = 0; $i < sizeof($nums); $i++)
    {
        // Check if the current element is equal to 5 or 7
        if ($nums[$i] == 5 || $nums[$i] == 7) return true;
    }

    // Return false if there are no elements equal to 5 or 7
    return false;
 }   

// Use 'var_dump' to print the result of calling 'test' with different arrays
var_dump(test([1, 5, 6, 9, 10, 17]));
var_dump(test([1, 4, 7, 9, 10, 17]));
var_dump(test([1, 1, 2, 9, 10, 17]));

Sample Output:

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

Flowchart:

For more Practice: Solve these Related Problems:

Write a PHP script to check if an array contains at least one occurrence of both 5 and 7.
Write a PHP function to scan an array and return true if the set of elements includes both 5 and 7.
Write a PHP program to implement array searching logic to detect the presence of the numbers 5 and 7 simultaneously.
Write a PHP script to iterate through an array, use flags for both 5 and 7, and output a boolean if both exist.

PHP Code Editor:

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