**密码长度至少为8,且必须包含大小写字母/数字/符号任意三者组合
public function rexCheckPassword()
{
$pwd = '12345678aaA';
// 8-20 位,字母、数字、字符
//密码必须包含大小写字母/数字/符号任意两者组合
$regStr = "/^(?![a-zA-Z]+$)(?![A-Z0-9]+$)(?![A-Z\\W_]+$)(?![a-z0-9]+$)(?![a-z\\W_]+$)(?![0-9\\W_]+$)[a-zA-Z0-9\\W_]{8,20}$/";
// $regStr = "/^(?![0-9]+$)(?![a-z]+$)(?![A-Z]+$)(?!([^(0-9a-zA-Z)]|[\(\)])+$)([^(0-9a-zA-Z)]|[\(\)]|[a-z]|[A-Z]|[0-9]){8,}$/";
if(preg_match($regStr, $pwd)){
dump(1);
}else{
dump(0);
}
}