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

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

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><H1
><A
NAME="faq.general"
>Cap. 46. General Information</A
></H1
><P
>&#13;   This section holds the most general questions about PHP:
   what it is and what it does.
  </P
><DIV
CLASS="qandaset"
><DL
><DT
>1. <A
HREF="faq.general.html#faq.general.what"
>What is PHP?</A
></DT
><DT
>2. <A
HREF="faq.general.html#faq.general.acronym"
>What does PHP stand for?</A
></DT
><DT
>3. <A
HREF="faq.general.html#faq.general.relation-versions"
>What is the relation between the versions?</A
></DT
><DT
>4. <A
HREF="faq.general.html#faq.general.running-concurent"
>Can I run several versions of PHP at the same time?</A
></DT
><DT
>5. <A
HREF="faq.general.html#faq.general.differences-34"
>What are the differences between PHP 3 and PHP 4?</A
></DT
><DT
>6. <A
HREF="faq.general.html#faq.general.bug"
>&#13;      I think I found a bug! Who should I tell?
     </A
></DT
></DL
><DIV
CLASS="qandaentry"
><B
><DIV
CLASS="question"
><P
><A
NAME="faq.general.what"
></A
><B
>1. </B
>What is PHP?</P
></DIV
></B
><DIV
CLASS="answer"
><P
><B
> </B
>
      From the <A
HREF="preface.html"
>preface of the manual</A
>:
     </P
><P
>&#13;      PHP is an HTML-embedded scripting language. Much of
      its syntax is borrowed from C, Java and Perl with a couple of unique
      PHP-specific features thrown in. The goal of the language is to
      allow web developers to write dynamically generated pages quickly.
     </P
><P
>&#13;      A nice introduction to PHP by Stig S&#230;ther Bakken can be found 
      at <A
HREF="http://www.zend.com/zend/art/intro.php"
TARGET="_top"
>http://www.zend.com/zend/art/intro.php</A
> on the Zend
      website.  Also, much of the 
      <A
HREF="http://conf.php.net/"
TARGET="_top"
>PHP Conference Material</A
> is freely available.
     </P
></DIV
></DIV
><DIV
CLASS="qandaentry"
><B
><DIV
CLASS="question"
><P
><A
NAME="faq.general.acronym"
></A
><B
>2. </B
>What does PHP stand for?</P
></DIV
></B
><DIV
CLASS="answer"
><P
><B
> </B
>
     PHP stands for <SPAN
CLASS="emphasis"
><I
CLASS="emphasis"
>PHP: Hypertext Preprocessor</I
></SPAN
>. 
     This confuses many people because the first word of the acronym is 
     the acronym. This type of acronym is called a recursive acronym. 
     The curious can visit 
     <A
HREF="http://www.foldoc.org/"
TARGET="_top"
>Free On-Line Dictionary of Computing</A
>
     for more information on recursive acronyms. 
     </P
></DIV
></DIV
><DIV
CLASS="qandaentry"
><B
><DIV
CLASS="question"
><P
><A
NAME="faq.general.relation-versions"
></A
><B
>3. </B
>What is the relation between the versions?</P
></DIV
></B
><DIV
CLASS="answer"
><P
><B
> </B
>
      PHP/FI 2.0 is an early and no longer supported version of PHP. PHP 3
      is the successor to PHP/FI 2.0 and is a lot nicer. PHP 4 is the current
      generation of PHP, which uses the <A
HREF="http://www.zend.com/"
TARGET="_top"
>Zend
      engine</A
> under the hood.  PHP 5 uses <A
HREF="http://www.zend.com/zend/future.php"
TARGET="_top"
>Zend engine 2</A
> which, among other
      things, offers many additional <A
HREF="ref.classobj.html"
>OOP</A
> 
      features.  PHP 5 is experimental.
     </P
></DIV
></DIV
><DIV
CLASS="qandaentry"
><B
><DIV
CLASS="question"
><P
><A
NAME="faq.general.running-concurent"
></A
><B
>4. </B
>Can I run several versions of PHP at the same time?</P
></DIV
></B
><DIV
CLASS="answer"
><P
><B
> </B
>
       Yes. See the <TT
CLASS="filename"
>INSTALL</TT
> file that is included
       in the PHP 4 source distribution.  Also, read the related 
       <A
HREF="migration4.php4.with.php3.html"
>appendix</A
>.
     </P
></DIV
></DIV
><DIV
CLASS="qandaentry"
><B
><DIV
CLASS="question"
><P
><A
NAME="faq.general.differences-34"
></A
><B
>5. </B
>What are the differences between PHP 3 and PHP 4?</P
></DIV
></B
><DIV
CLASS="answer"
><P
><B
> </B
>
      There are <A
HREF="http://www.zend.com/zend/art/"
TARGET="_top"
>a couple of articles</A
>
      written on this by the authors of PHP 4. Here's a list of some of
      the more important new features:
      <P
></P
><UL
><LI
><P
>Extended API module</P
></LI
><LI
><P
>Generalized build process under Unix</P
></LI
><LI
><P
>Generic web server interface that also supports
        multi-threaded web servers</P
></LI
><LI
><P
>Improved syntax highlighter</P
></LI
><LI
><P
>Native HTTP session support</P
></LI
><LI
><P
>Output buffering support</P
></LI
><LI
><P
>More powerful configuration system</P
></LI
><LI
><P
>Reference counting</P
></LI
></UL
>
      Please see the <A
HREF="http://www.zend.com/zend/whats-new.php"
TARGET="_top"
>What's new in
      PHP 4 overview</A
> for a detailed explanation of these
      features and more.  If you're migrating from PHP 3 to PHP 4, 
      also read the related <A
HREF="migration4.html"
>appendix</A
>.
     </P
></DIV
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><B
><DIV
CLASS="question"
><P
><A
NAME="faq.general.bug"
></A
><B
>6. </B
>
      I think I found a bug! Who should I tell?
     </P
></DIV
></B
><DIV
CLASS="answer"
><P
><B
> </B
>
      You should go to the PHP Bug Database and make sure the bug
      isn't a known bug.  If you don't see it in the database, use
      the reporting form to report the bug.  It is important to use
      the bug database instead of just sending an email to one of the
      mailing lists because the bug will have a tracking number assigned
      and it will then be possible for you to go back later and check
      on the status of the bug.  The bug database can be found at 
      <A
HREF="http://bugs.php.net/"
TARGET="_top"
>http://bugs.php.net/</A
>.
     </P
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