Adopt the string functions - str_contains, str_starts_with, str_ends_with - available in PHP 8.

Before

strpos('abc', 'a') !== false;
substr($haystack, 0, strlen($needle)) === $needle;
substr($haystack, -strlen($needle)) === $needle;

After

str_contains('abc', 'a');
str_starts_with($haystack, $needle);
str_ends_with($haystack, $needle);