PHP Exercises: Print out the sum of pairs of numbers of a given sorted array of positive integers that is equal to a given number
PHP: Exercise-44 with Solution
Write a PHP program to print out the sum of pairs of numbers of a given sorted array of positive integers which is equal to a given number.
Sample Solution: -
PHP Code:
<?php
function find_Pairs($nums, $pair_sum) {
$nums_pairs = "";
for ($i = 0; $i <= count($nums); $i++) {
for ($j = $i + 1; $j < count($nums); $j++) {
if ($nums[$i] + $nums[$j] == (int)$pair_sum) {
$nums_pairs .= $nums[$i] . "," . $nums[$j] . ";";
}
}
}
return $nums_pairs;
}
$nums = array(0,1,2,3,4,5,6);
echo find_Pairs($nums, 7)."\n";
echo find_Pairs($nums, 5)."\n";
?>
Sample Output:
1,6;2,5;3,4; 0,5;1,4;2,3;
Flowchart:

PHP Code Editor:
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Previous: Write a PHP program that multiplies corresponding elements of two given lists.
Next: Write a PHP program to compute the sum of the digits of a number.
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PHP: Tips of the Day
Returns all elements in an array except for the first one
Example:
<?php function tips_tail($items) { return count($items) > 1 ? array_slice($items, 1) : $items; } print_r(tips_tail([1, 5, 7])); ?>
Output:
Array ( [0] => 5 [1] => 7 )
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