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PHP Exercises: Count number of vowels in a given string

PHP: Exercise-96 with Solution

Write a PHP program to count number of vowels in a given string.

Note: Use a regular expression to count the number of vowels (A, E, I, O, U) in a string.

Sample Solution: -

PHP Code:

<?php
//Licence: https://bit.ly/2CFA5XY

function count_Vowels($string)
{
    preg_match_all('/[aeiou]/i', $string, $matches);
    return count($matches[0]);
}
print_r(count_Vowels('sampleInput'));


?>

Sample Output: 

4

Flowchart:

Flowchart: Count number of vowels in a given string.

PHP Code Editor:

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Previous: Write a PHP program to check if a given string starts with a given substring.
Next: Write a PHP program to decapitalize the first letter of the string and then adds it with rest of the string.

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PHP: Tips of the Day

Mutates the original array to filter out the values specified

Example:

<?php
function tips_pull(&$items, ...$params)
{
  $items = array_values(array_diff($items, $params));
  return $items;
}

$items = ['x', 'y', 'z', 'x', 'y', 'z'];
print_r(tips_pull($items, 'y', 'z'));
?>

Output:

Array
(
    [0] => x
    [1] => x
)