install.unix.html

php的帮助文档,涉及到PHP的案例和基本语法,以及实际应用内容

15. You can edit /usr/local/lib/php.ini file to set PHP options.
    Edit your httpd.conf or srm.conf file and add:
    AddType application/x-httpd-php .php
</pre></div>
      </pre></div>
     </div>
     <blockquote><p><b class="note">Note</b>: 
      
       Replace <i>php-5</i> by <i>php-4</i> and
       <i>php5</i> by <i>php4</i> in PHP 4.
      <br />
     </p></blockquote>

     <p class="para">
      Depending on your Apache install and Unix variant, there are many
      possible ways to stop and restart the server. Below are some typical
      lines used in restarting the server, for different apache/unix
      installations. You should replace <i>/path/to/</i> with
      the path to these applications on your systems.
     </p>
     <p class="para">
      <div class="example">
       <p><b>Example #3 Example commands for restarting Apache</b></p>
       <div class="example-contents">
<div class="cdata"><pre>
1. Several Linux and SysV variants:
/etc/rc.d/init.d/httpd restart

2. Using apachectl scripts:
/path/to/apachectl stop
/path/to/apachectl start

3. httpdctl and httpsdctl (Using OpenSSL), similar to apachectl:
/path/to/httpsdctl stop
/path/to/httpsdctl start

4. Using mod_ssl, or another SSL server, you may want to manually
stop and start:
/path/to/apachectl stop
/path/to/apachectl startssl
</pre></div>
       </div>

      </div>
     </p>
     <p class="para">
      The locations of the apachectl and http(s)dctl binaries often
      vary. If your system has <i>locate</i> or
      <i>whereis</i> or <i>which</i> commands,
      these can assist you in finding your server control programs.
     </p>

     <p class="para">
      Different examples of compiling PHP for apache are as follows:
      <div class="informalexample">
       <div class="example-contents">
<div class="cdata"><pre>
./configure --with-apxs --with-pgsql
</pre></div>
       </div>

      </div>
     </p>
     <p class="para">
      This will create a <var class="filename">libphp5.so</var> (or
      <var class="filename">libphp4.so</var> in PHP 4) shared library that is loaded
      into Apache using a LoadModule line in Apache&#039;s <var class="filename">httpd.conf</var> file. The
      PostgreSQL support is embedded into this library.
     </p>
     <p class="para">
      <div class="informalexample">
       <div class="example-contents">
<div class="cdata"><pre>
./configure --with-apxs --with-pgsql=shared
</pre></div>
       </div>

      </div>
     </p>
     <p class="para">
      This will create a <var class="filename">libphp4.so</var> shared
      library for Apache, but it will also create a
      <var class="filename">pgsql.so</var> shared library that is loaded into
      PHP either by using the extension directive in
      <var class="filename">php.ini</var> file or by loading it explicitly in
      a script using the <a href="function.dl.html" class="function">dl()</a> function.
     </p>
     <p class="para">
      <div class="informalexample">
       <div class="example-contents">
<div class="cdata"><pre>
./configure --with-apache=/path/to/apache_source --with-pgsql
</pre></div>
       </div>

      </div>
     </p>
     <p class="para">
      This will create a <var class="filename">libmodphp5.a</var> library, a
      <var class="filename">mod_php5.c</var> and some accompanying files and
      copy this into the <i>src/modules/php5</i> directory
      in the Apache source tree. Then you compile Apache using
      <i>--activate-module=src/modules/php5/libphp5.a</i>
      and the Apache build system will create
      <var class="filename">libphp5.a</var> and link it statically into the
      <var class="filename">httpd</var> binary (replace <i>php5</i> by
      <i>php4</i> in PHP 4). The PostgreSQL support is
      included directly into this <var class="filename">httpd</var> binary,
      so the final result here is a single <var class="filename">httpd</var>
      binary that includes all of Apache and all of PHP.
     </p>
     <p class="para">
      <div class="informalexample">
       <div class="example-contents">
<div class="cdata"><pre>
./configure --with-apache=/path/to/apache_source --with-pgsql=shared
</pre></div>
       </div>

      </div>
     </p>
     <p class="para">
      Same as before, except instead of including PostgreSQL support
      directly into the final <var class="filename">httpd</var> you will get
      a <var class="filename">pgsql.so</var> shared library that you can load
      into PHP from either the <var class="filename">php.ini</var> file or
      directly using <a href="function.dl.html" class="function">dl()</a>.
     </p>
     <p class="para">
      When choosing to build PHP in different ways, you should consider
      the advantages and drawbacks of each method. Building as a shared
      object will mean that you can compile apache separately, and don&#039;t
      have to recompile everything as you add to, or change, PHP.
      Building PHP into apache (static method) means that PHP will
      load and run faster. For more information, see the Apache
      <a href="http://httpd.apache.org/docs/1.3/dso.html" class="link external">&raquo; web page on DSO support</a>.
     </p>
    <blockquote><p><b class="note">Note</b>: 
     
      Apache&#039;s default <var class="filename">httpd.conf</var> currently ships with a section that looks
      like this:
      <div class="informalexample">
       <div class="example-contents">
<div class="cdata"><pre>
User nobody
Group &quot;#-1&quot;
</pre></div>
       </div>

      </div>
      Unless you change that to &quot;Group nogroup&quot; or something like that (&quot;Group daemon&quot; is
      also very common) PHP will not be able to open files.
     <br />
    </p></blockquote>  
    <blockquote><p><b class="note">Note</b>: 
     
      Make sure you specify the installed version of apxs when using
      <span class="option">--with-apxs=/path/to/apxs</span>.
      You must NOT use the apxs version that is in the apache sources but the one
      that is actually installed on your system.
     <br />
    </p></blockquote>   
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