How to get rid of the back 0

How to get rid of the back 0
10000000000 becomes 10
10020000000 becomes 1020
10020030000 becomes 102030


How does this come true?

------Solution--------------------
echo preg_replace ('/0+$/', ' 0 ', 10020030000);
------Solution--------------------
Last time you have to add, this time to get rid of ...
------Solution--------------------
Is there a PID field in the table? The parent class Pid=0 this query is much easier.
------Solution--------------------
Regular removal of non-zero, assembled into 2 bits ...

discuss
10000000000 becomes 10
10020000000 becomes 1020
10020030000 becomes 102030


How does this come true?

------Solution--------------------
discuss
Just added a PID to finally fix the quote:

------Solution--------------------
"It says I used a like ring query"?
------Solution--------------------
discuss

Just added a PID to finally fix the quote:

Regular removal of non-zero, assembled into 2 bits ...

Reference:
10000000000 becomes 10
10020000000 becomes 1020
10020030000 becomes 102030


How does this come true?

------Solution--------------------
echo preg_replace ('/0+/', ' 0 ', 10020000000);

