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<?php function hasSpecialChar($subject) { $pattern = "/[`~!@#$%^&*()+=|{}':;',\\[\\].<>\/?~!@#¥%……&*()——+|{}【】‘;:”\"“’。,、?]/"; if (preg_match($pattern, $subject)) { return true; } return false; } var_dump(hasSpecialChar('问答社区')); // boolean true var_dump(hasSpecialChar('Segmentfault')); // boolean false var_dump(hasSpecialChar('@Segmentfault')); // boolean true

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