Buffer of node.js and Cache of PHP

would you like to ask, is node.js "s buffer the same kind of effect as PHP"s Cache?

earlier, I saw a php teacher deposit Wechat"s access_token in cache (valid period of 7200)

would you like to ask whether it is appropriate for node.js "s buffer to do the same, or node is more suitable to use other methods

Mar.12,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b366f7-4ec7a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b366f7-4ec7a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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