证书格式不对不能有换行符和开始结束字符串

处理方法，替换掉—–[\w\s]+—–的开始和结束符和换行符

$content = preg_replace('/-----[\w\s]+-----/mu', '', $content);
$content = preg_replace('/[\r\n]/mu', '', $content);

$pass = 'wo shi mi ma';
$method = 'aes128';
# 加密
$enc_data = openssl_encrypt('wo shi shu ju', $method, $pass);
# 解密
$data = openssl_decrypt($enc_data, $method, $pass);