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Added information on mysqlnd.debug option format string, and new profiling option.

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@305372 c90b9560-bf6c-de11-be94-00142212c4b1
This commit is contained in:
Anthony Bedford 2010-11-15 16:10:25 +00:00
parent 1556e1d015
commit f9599e38ba
1 changed files with 101 additions and 4 deletions
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105
reference/mysqlnd/config.xml
View file

@ -109,14 +109,111 @@
</varlistentry>
<varlistentry xml:id="mysqlnd.debug">
<term>
<parameter>mysqlnd.debug</parameter> <type>boolean</type>
<parameter>mysqlnd.debug</parameter> <type>string</type>
</term>
<listitem>
<para>
Records everything from all extensions using
<literal>mysqlnd</literal>. Only available with a debug build of
PHP.
Records communication from all extensions using
<literal>mysqlnd</literal> to the specified log file.
</para>
<para>
The format of the directive is <literal>mysqlnd.debug =
"option1[,parameter_option1][:option2[,parameter_option2]]"</literal>.
</para>
<para>
The options for the format string are as follows:
</para>
<itemizedlist>
<listitem>
<para>
A[,file] - Appends trace output to specified file. Also ensures
that data is written after each write. This is done by closing
and reopening the trace file (this is slow). It helps ensure a
complete log file should the application crash.
</para>
</listitem>
<listitem>
<para>
a[,file] - Appends trace output to the specified file.
</para>
</listitem>
<listitem>
<para>
d - Enables output from DBUG_&lt;N&gt; macros for the current
state. May be followed by a list of keywords which selects
output only for the DBUG macros with that keyword. An empty list
of keywords implies output for all macros.
</para>
</listitem>
<listitem>
<para>
f[,functions] - Limits debugger actions to the specified list of
functions. An empty list of functions implies that all functions
are selected.
</para>
</listitem>
<listitem>
<para>
F - Marks each debugger output line with the name of the source
file containing the macro causing the output.
</para>
</listitem>
<listitem>
<para>
i - Marks each debugger output line with the PID of the current
process.
</para>
</listitem>
<listitem>
<para>
L - Marks each debugger output line with the name of the source
file line number of the macro causing the output.
</para>
</listitem>
<listitem>
<para>
n - Marks each debugger output line with the current function
nesting depth
</para>
</listitem>
<listitem>
<para>
o[,file] - Similar to a[,file] but overwrites old file, and does
not append.
</para>
</listitem>
<listitem>
<para>
O[,file] - Similar to A[,file] but overwrites old file, and does
not append.
</para>
</listitem>
<listitem>
<para>
t[,N] - Enables function control flow tracing. The maximum
nesting depth is specified by N, and defaults to 200.
</para>
</listitem>
<listitem>
<para>
x - This option activates profiling.
</para>
</listitem>
</itemizedlist>
<para>
Example:
</para>
<programlisting>
d:t:x:O,/tmp/mysqlnd.trace
</programlisting>
<note>
<para>
This feature is only available with a debug build of PHP. Works
on Microsoft Windows if using a debug build of PHP and PHP was
built using Microsoft Visual C version 9 and above.
</para>
</note>
<para></para>
</listitem>
</varlistentry>
<varlistentry xml:id="mysqlnd.net_read_timeout">