Ask for a regular expression

the requirement is 010203 = > [01JEI 02jue 03]
to write a regular "010203". Split (regular) = [01J 02pr 03]
how do you write this?
/ (0 [1-9] | (1 [0-2])) + / g.test ("0122") Why true is returned here. I want to match the number between 01 and 12. 22 does not match

Javascript php java cPP regular-expression
Mar.06,2021 
"010203".match(/\d{2}/g);

or 

"010203".split(/\B(?=(?:\d{2})+\b)/);

or 

"010203".split(/\B(?=0)/);

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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-64f5-1ea9b53-1f78.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1ea9b53-1f78.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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