﻿ PHP Exercise: Print out the sum of pairs of numbers of a given sorted array of positive integers that is equal to a given number - w3resource

# 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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## 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
(
 => 5
 => 7
)
```