How does php MongoDB turn ObjectId into string

the query data is printed to see that _ id is objectID,. If it is directly converted to json,_id, it will be empty. Can you change objectID to string, and then to json?

Feb.26,2021

Yes, add a (string) type directly before _ id
ex: $info ['objectID'] = (string) $info [' _ id'];

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-64f5-1b2ae1b-2ba3f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2ae1b-2ba3f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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