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<section xml:id="mysql.configuration" xmlns="http://docbook.org/ns/docbook">
&reftitle.runtime;
&extension.runtime;
<para>
<table>
<title>MySQL Configuration Options</title>
<tgroup cols="4">
<thead>
<row>
<entry>Name</entry>
<entry>Default</entry>
<entry>Changeable</entry>
<entry>Changelog</entry>
</row>
</thead>
<tbody>
<row>
<entry><link linkend="ini.mysql.allow-persistent">mysql.allow_persistent</link></entry>
<entry>"1"</entry>
<entry>PHP_INI_SYSTEM</entry>
<entry></entry>
</row>
<row>
<entry><link linkend="ini.mysql.max-persistent">mysql.max_persistent</link></entry>
<entry>"-1"</entry>
<entry>PHP_INI_SYSTEM</entry>
<entry></entry>
</row>
<row>
<entry><link linkend="ini.mysql.max-links">mysql.max_links</link></entry>
<entry>"-1"</entry>
<entry>PHP_INI_SYSTEM</entry>
<entry></entry>
</row>
<row>
<entry><link linkend="ini.mysql.trace-mode">mysql.trace_mode</link></entry>
<entry>"0"</entry>
<entry>PHP_INI_ALL</entry>
<entry>Available since PHP 4.3.0.</entry>
</row>
<row>
<entry><link linkend="ini.mysql.default-port">mysql.default_port</link></entry>
<entry>NULL</entry>
<entry>PHP_INI_ALL</entry>
<entry></entry>
</row>
<row>
<entry><link linkend="ini.mysql.default-socket">mysql.default_socket</link></entry>
<entry>NULL</entry>
<entry>PHP_INI_ALL</entry>
<entry>Available since PHP 4.0.1.</entry>
</row>
<row>
<entry><link linkend="ini.mysql.default-host">mysql.default_host</link></entry>
<entry>NULL</entry>
<entry>PHP_INI_ALL</entry>
<entry></entry>
</row>
<row>
<entry><link linkend="ini.mysql.default-user">mysql.default_user</link></entry>
<entry>NULL</entry>
<entry>PHP_INI_ALL</entry>
<entry></entry>
</row>
<row>
<entry><link linkend="ini.mysql.default-password">mysql.default_password</link></entry>
<entry>NULL</entry>
<entry>PHP_INI_ALL</entry>
<entry></entry>
</row>
<row>
<entry><link linkend="ini.mysql.connect-timeout">mysql.connect_timeout</link></entry>
<entry>"60"</entry>
<entry>PHP_INI_ALL</entry>
<entry>PHP_INI_SYSTEM in PHP <= 4.3.2. Available since PHP 4.3.0.</entry>
</row>
</tbody>
</tgroup>
</table>
&ini.php.constants;
</para>
&ini.descriptions.title;
<para>
<variablelist>
<varlistentry xml:id="ini.mysql.allow-persistent">
<term>
<parameter>mysql.allow_persistent</parameter>
<type>boolean</type>
</term>
<listitem>
<para>
Whether to allow
<link linkend="features.persistent-connections">persistent connections</link>
to MySQL.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.max-persistent">
<term>
<parameter>mysql.max_persistent</parameter>
<type>integer</type>
</term>
<listitem>
<para>
The maximum number of persistent MySQL connections per
process.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.max-links">
<term>
<parameter>mysql.max_links</parameter>
<type>integer</type>
</term>
<listitem>
<para>
The maximum number of MySQL connections per process, including
persistent connections.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.trace-mode">
<term>
<parameter>mysql.trace_mode</parameter>
<type>boolean</type>
</term>
<listitem>
<para>
Trace mode. When <literal>mysql.trace_mode</literal> is enabled, warnings
for table/index scans, non free result sets, and SQL-Errors will be
displayed. (Introduced in PHP 4.3.0)
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.default-port">
<term>
<parameter>mysql.default_port</parameter>
<type>string</type>
</term>
<listitem>
<para>
The default TCP port number to use when connecting to
the database server if no other port is specified. If
no default is specified, the port will be obtained
from the <envar>MYSQL_TCP_PORT</envar> environment
variable, the <literal>mysql-tcp</literal> entry in
<filename>/etc/services</filename> or the compile-time
<constant>MYSQL_PORT</constant> constant, in that order. Win32
will only use the <constant>MYSQL_PORT</constant> constant.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.default-socket">
<term>
<parameter>mysql.default_socket</parameter>
<type>string</type>
</term>
<listitem>
<para>
The default socket name to use when connecting to a local
database server if no other socket name is specified.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.default-host">
<term>
<parameter>mysql.default_host</parameter>
<type>string</type>
</term>
<listitem>
<para>
The default server host to use when connecting to the database
server if no other host is specified. Doesn't apply in
&sqlsafemode;.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.default-user">
<term>
<parameter>mysql.default_user</parameter>
<type>string</type>
</term>
<listitem>
<para>
The default user name to use when connecting to the database
server if no other name is specified. Doesn't apply in
&sqlsafemode;.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.default-password">
<term>
<parameter>mysql.default_password</parameter>
<type>string</type>
</term>
<listitem>
<para>
The default password to use when connecting to the database
server if no other password is specified. Doesn't apply in
&sqlsafemode;.
</para>
</listitem>
</varlistentry>
<varlistentry xml:id="ini.mysql.connect-timeout">
<term>
<parameter>mysql.connect_timeout</parameter>
<type>integer</type>
</term>
<listitem>
<para>
Connect timeout in seconds. On Linux this timeout is also used for
waiting for the first answer from the server.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</section>
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