**一.函數聲明** ~~~ str_starts_with ( string $haystack , string $needle ) : bool ~~~ **二.函數使用** ~~~ var_dump(str_starts_with($str,'name')); var_dump(str_ends_with($str,'php8')); ~~~ **三.命名參數** ~~~ var_dump(str_starts_with(haystack:$str,needle:'my')); var_dump(str_ends_with(haystack:$str,needle:'8')); ~~~