Interface how to stream files to the client through PHP

the web client requests the interface, and then the background sends the file directly to the client to download

Php
Mar.13,2021

echo json_encode([
    'url'=>'http://www.test.com/file.xls',
]);
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-64f5-7b27ac-1e778.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b27ac-1e778.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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