Sophie: php-manual-ro-0:20051028-1 noarch

php-manual-ro-20051028-1.noarch.rpm

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>Anexa C. Migrating from PHP 3 to PHP 4</TD
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><H1
CLASS="section"
><A
NAME="migration4.configuration"
>Migrating Configuration Files</A
></H1
><P
>&#13;    The global configuration file, <TT
CLASS="filename"
>php3.ini</TT
>,
    has changed its name to <TT
CLASS="filename"
>php.ini</TT
>.
   </P
><P
>&#13;    For the Apache configuration file, there are slightly more
    changes. The MIME types recognized by the PHP module have
    changed.
    <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN132619"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><PRE
CLASS="apache-conf"
>application/x-httpd-php3        --&#62;    application/x-httpd-php
application/x-httpd-php3-source --&#62;    application/x-httpd-php-source</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
>
   </P
><P
>&#13;    You can make your configuration files work with both versions
    of PHP (depending on which one is currently compiled into the
    server), using the following syntax:
    <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN132622"
></A
><TABLE
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><TR
><TD
><PRE
CLASS="apache-conf"
>AddType  application/x-httpd-php3        .php3
AddType  application/x-httpd-php3-source .php3s

AddType  application/x-httpd-php         .php
AddType  application/x-httpd-php-source  .phps</PRE
></TD
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><P
></P
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>
   </P
><P
>&#13;    In addition,  the PHP directive names for Apache have changed.
   </P
><P
>&#13;    Starting with PHP 4.0, there are only four Apache directives
    that relate to PHP:
    <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN132626"
></A
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><PRE
CLASS="apache-conf"
>php_value [PHP directive name] [value]
php_flag [PHP directive name] [On|Off]
php_admin_value [PHP directive name] [value]
php_admin_flag [PHP directive name] [On|Off]</PRE
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>
   </P
><P
>&#13;    There are two differences between the Admin values and the non admin values:
   </P
><P
></P
><UL
><LI
><P
>&#13;      Admin values (or flags) can only appear in the server-wide Apache configuration
      files (e.g., <TT
CLASS="filename"
>httpd.conf</TT
>).
     </P
></LI
><LI
><P
>&#13;      Standard values (or flags) cannot control certain PHP directives, for example: 
      <A
HREF="features.safe-mode.html#ini.safe-mode"
>safe mode</A
> (if you could override safe mode settings in 
      <TT
CLASS="filename"
>.htaccess</TT
> files, it 
      would defeat <A
HREF="features.safe-mode.html#ini.safe-mode"
>safe mode</A
>'s purpose).  In contrast, Admin values can modify 
      the value of any PHP directive.
     </P
></LI
></UL
><P
>&#13;    To make the transition process easier, PHP 4 is bundled with scripts 
    that automatically convert your Apache configuration and 
    <TT
CLASS="filename"
>.htaccess</TT
> files 
    to work with both PHP 3 and PHP 4. These scripts do NOT convert the mime 
    type lines! You have to convert these yourself.
   </P
><P
>&#13;    To convert your Apache configuration files, run the apconf-conv.sh 
    script (available in the scripts/apache/ directory).  For example:
    <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN132641"
></A
><TABLE
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><TR
><TD
><PRE
CLASS="shell"
>~/php4/scripts/apache:#  ./apconf-conv.sh /usr/local/apache/conf/httpd.conf</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
>
   </P
><P
>&#13;    Your original configuration file will be saved in httpd.conf.orig.
   </P
><P
>&#13;    To convert your <TT
CLASS="filename"
>.htaccess</TT
> files, run the 
    <TT
CLASS="filename"
>aphtaccess-conv.sh</TT
> script (available in 
    the <TT
CLASS="filename"
>scripts/apache/</TT
> directory as well):
    <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN132648"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
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><TR
><TD
><PRE
CLASS="shell"
>~/php4/scripts/apache:#  find / -name .htaccess -exec ./aphtaccess-conv.sh {} \;</PRE
></TD
></TR
></TABLE
><P
></P
></DIV
>
   </P
><P
>&#13;    Likewise, your old <TT
CLASS="filename"
>.htaccess</TT
> files will be saved with 
    an .orig prefix.
   </P
><P
>&#13;    The conversion scripts require awk to be installed.
   </P
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