PHP Exercises: Check if two numbers are approximately equal to each other
PHP: Exercise-94 with Solution
Write a PHP program to check if two numbers are approximately equal to each other.
Note: Use abs() to compare the absolute difference of the two values to epsilon. Omit the third parameter, epsilon, to use a default value of 0.001.
Sample Solution: -
PHP Code:
<?php
//Licence: https://bit.ly/2CFA5XY
function approximatelyEqual($number1, $number2, $epsilon = 0.001)
{
if (abs($number1 - $number2) < $epsilon)
return 1;
else
return 0;
}
print_r(approximatelyEqual(10.0, 10.00001));
echo("\n");
print_r(approximatelyEqual(10.0, 10.01));
?>
Sample Output:
1 0
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 ( [0] => 5 [1] => 7 )
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