How can a PHP developer ensure that the genre list only displays items with a specific starting letter, as mentioned in the code snippet?

To ensure that the genre list only displays items with a specific starting letter, the PHP developer can modify the code to filter the array of genres based on the starting letter. This can be achieved by using the array_filter() function along with a custom callback function that checks if the genre starts with the desired letter. 

$genres = array("Action", "Comedy", "Drama", "Horror", "Romance", "Sci-Fi");

$starting_letter = 'C';

$filtered_genres = array_filter($genres, function($genre) use ($starting_letter) {
    return strtoupper(substr($genre, 0, 1)) === strtoupper($starting_letter);
});

foreach($filtered_genres as $genre) {
    echo $genre . "<br>";
}

Keywords

PHP array_filter substr array_map callback

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