Finding Pairs with a Specific Value
To find pairs with a specific value, you can iterate through the array and check for elements that match the desired value.
Example:
PHP
<?php function pairsWithValue($arr, $targetValue) { $pairs = []; foreach ($arr as $value) { if (in_array($targetValue - $value, $arr)) { $pairs[] = [$value, $targetValue - $value]; } } return $pairs; } // Driver code $arr = [3, 1, 4, 6, 5, 2]; $targetVal = 7; $res = pairsWithValue($arr, $targetVal); print_r($res); ?> |
Output
Array
(
[0] => Array
(
[0] => 3
[1] => 4
)
[1] => Array
(
[0] => 1
[1] => 6
)
[2] => Array
(
...
How to Find Matching Pair from an Array in PHP ?
Given an Array, the task is to find the matching pair from a given array in PHP. Matching a pair from an array involves searching for two elements that satisfy a certain condition, such as having the same value, summing up to a specific target, or meeting some other criteria. Here, we will cover three common scenarios for finding matching pairs in an array.