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이 문서에서는 PHP 중국어 웹사이트 매뉴얼 풀어 주다
The argument values supplied to a PL/Perl function's code are
simply the input arguments converted to text form (just as if they
had been displayed by a SELECT statement).
Conversely, the return
and return_next
commands will accept any string that is acceptable input format
for the function's declared return type.