Phpexcel front and back end separation how to return the binary data stream to the front end

phpexcel front and back end separate development process, how to return binary data stream to the front end in the background.

Php
Mar.13,2021

does the landlord want to provide the function of downloading excel?
Why do you need binary, just return a link to download the file?


header "directly under" ah

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-64f5-1e3e33f-597e5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e3e33f-597e5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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