ajax传值到php页面，存入session。在其他页面调用不到存入的session值
有人遇到过这样的现象吗，利用ajax去请求到a.php页面，然后在a.php页面用session存储ajax传过来的值，然后在b.php页面调用session中的值，但是空的
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有人遇到过这样的现象吗，利用ajax去请求到a.php页面，然后在a.php页面用session存储ajax传过来的值，然后在b.php页面调用session中的值，但是空的
1、确认下session id 一致
2、确认下session_start开启，并且之前没有任何输出。
看看ajax的header是否带了session_id，没带说明cookie丢失或者跨域了。
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