PHP uses external commands to export the database, back up the database to the server, and download it to the local device.

: This article mainly introduces how to use external commands in PHP to export the database, back up the database to the server, and download it to the local computer. For more information about PHP tutorials, see.

 $ DumpFileName '; $ hd = fopen ($ dumpFileName, 'RB'); echo fread ($ hd, filesize ($ dumpFileName); fclose ($ hd);?>

The above describes how to use external commands in PHP to export the database, back up the database to the server, and download it to the local computer, including some content. I hope to help anyone who is interested in PHP tutorials.