Writing order of header headers (when pictures or files are downloaded)

as shown in the picture, a picture download function:
does the writing order of header affect the output? ask the handsome guy to explain it. Thank you

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Docker linux nginx php
Jun.23,2022

No zsbd

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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-64f5-1e9288e-13e8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e9288e-13e8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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