由于map路由下用户请求的url会按照"/"分级对应到controllers下的目录下的Controller上，action则默认为indexAction，所以想要实现/key1/param1/key2/param2这种形式进行传参，就要通过delimiter来讲url分割成req_uri和query_str两个部分。
在实践中，定义了delimiter（尽管并没有用到它的功能），这时，如果用户的请求（更多的是爬虫或扫站）无意中包含以下形式：/aaa/bbb[delimiter](xxx)?/key1/param1/key2/param2...，会造成程序崩溃。
将这个问题提给鸟哥后，鸟哥迅速给出了修复(18~19行)：
<span> 1</span> <span>if</span> (Z_TYPE_P(delimer) == <span>IS_STRING</span>
<span> 2</span> &&<span> Z_STRLEN_P(delimer)) {
</span><span> 3</span> <span>if</span> ((query_str = <span>strstr</span>(req_uri, Z_STRVAL_P(delimer))) != <span>NULL</span>
<span> 4</span> && *(query_str - 1) == '/'<span>) {
</span><span> 5</span> tmp =<span> req_uri;
</span><span> 6</span> rest = query_str +<span> Z_STRLEN_P(delimer);
</span><span> 7</span> <span>if</span> (*rest == '\0'<span>) {
</span><span> 8</span> req_uri = estrndup(req_uri, query_str -<span> req_uri);
</span><span> 9</span> query_str = <span>NULL</span><span>;
</span><span>10</span> <span> efree(tmp);
</span><span>11</span> } <span>else</span> <span>if</span> (*rest == '/'<span>) {
</span><span>12</span> req_uri = estrndup(req_uri, query_str -<span> req_uri);
</span><span>13</span> query_str =<span> estrdup(rest);
</span><span>14</span> <span> efree(tmp);
</span><span>15</span> } <span>else</span><span> {
</span><span>16</span> query_str = <span>NULL</span><span>;
</span><span>17</span> <span> }
</span><span>18</span> } <span>else</span><span> {
</span><span>19</span> query_str = <span>NULL</span><span>;
</span><span>20</span> }通过delimer获取了query_str后，判断delimer的前一个字符是"/"的情况，却没有判断不是的情况，导致不符合/aaa/bbb/[delimer]/key1/param1/...形式的urk被截断成req_uri和query_str去解析，所以程序出现了问题。
感谢鸟哥快速的答复！
