How does vue+php realize the function of sending email?

php wants to send an email to the client. The content of the email is written by the front end. How to send it to php after the front end is written

Feb.18,2022
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-64f5-1b30cae-2bd38.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b30cae-2bd38.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?