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>apd_set_pprof_trace</H1
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>    (PECL)</P
>apd_set_pprof_trace&nbsp;--&nbsp;Starts the session debugging</DIV
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><H2
>说明</H2
>void <B
CLASS="methodname"
>apd_set_pprof_trace</B
> ( [string dump_directory] )<BR
></BR
><P
>&#13;   Starts debugging to <TT
CLASS="filename"
>pprof_{process_id}</TT
> in the
   dump directory.
  </P
></DIV
><DIV
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><A
NAME="AEN10102"
></A
><H2
>参数</H2
><P
>&#13;   <P
></P
><DIV
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><DL
><DT
><CODE
CLASS="parameter"
>dump_directory</CODE
></DT
><DD
><P
>&#13;       The directory in which the profile dump file is written. If not set, 
       the apd.dumpdir setting from the <TT
CLASS="filename"
>php.ini</TT
> file is used.
      </P
></DD
></DL
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>
  </P
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><H2
>返回值</H2
><P
>&#13;   无返回值。
  </P
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></A
><H2
>范例</H2
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>例 1. <B
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>apd_set_pprof_trace()</B
> example</B
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<font color="#0000BB">&lt;?php<br />apd_set_pprof_trace</font><font color="#007700">();<br /></font><font color="#0000BB">?&gt;</font>
</font>
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>
  </P
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></A
><H2
>参见</H2
><P
>&#13;   <P
></P
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