Questions about importing mysql data in excel

I used php + excel to import mysql data to excel. I have a total of 351901 data records in excel, but why is there only 16000 data records imported to the database each time, the remaining data must be re-imported. how can I set the number of imported items ., Here is a stupid way to import your ex excel into mysql data.
I use php + excel to import mysql classes. I have a total of 351901 pieces of data in excel, but why is there only 16000 pieces of data imported to the database each time, the remaining data must be re-imported. how can I set the number of imported items.

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Here is a stupid method:
Divide your excel file into N files, each of which should not exceed 16000 lines. import files one by one

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You need to see what causes the interruption.
Is there a processing limit for your excel class?
Is your php memory too large?
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Database import size settings? Is mysql 2 M by default?
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It is estimated that your php execution times out.
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Add set_time_limit (0) to the first line on the php page.
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It is not ruled out that 16,001st data entries are faulty.
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I personally think it is a problem with mysql settings, and the number of imports is limited.

We recommend that you use sqlyog or other navicat to import data. Very convenient.
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Check whether the execution time of your SQL statement times out by default.