考虑:
$a = 'How are you?'; if ($a contains 'are') echo 'true';
假设我有上面的代码,编写语句的正确方法是什么if ($a contains 'are')？
if ($a contains 'are')
php string substring contains string-matching
contains ×1
php ×1
string ×1
string-matching ×1
substring ×1