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

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

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML
><HEAD
><TITLE
>Spotting References</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
REL="HOME"
TITLE="Manual PHP"
HREF="index.html"><LINK
REL="UP"
TITLE="References Explained"
HREF="language.references.html"><LINK
REL="PREVIOUS"
TITLE="Unsetting References"
HREF="language.references.unset.html"><LINK
REL="NEXT"
TITLE="Security"
HREF="security.html"><META
HTTP-EQUIV="Content-type"
CONTENT="text/html; charset=ISO-8859-2"></HEAD
><BODY
CLASS="sect1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>Manual PHP</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="language.references.unset.html"
ACCESSKEY="P"
>Înapoi</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Cap. 15. References Explained</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="security.html"
ACCESSKEY="N"
>Înainte</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="sect1"
><H1
CLASS="sect1"
><A
NAME="language.references.spot"
>Spotting References</A
></H1
><P
>&#13;    Many syntax constructs in PHP are implemented via referencing
    mechanisms, so everything told above about reference binding also
    apply to these constructs. Some constructs, like passing and
    returning by-reference, are mentioned above. Other constructs that
    use references are:
   </P
><DIV
CLASS="sect2"
><H2
CLASS="sect2"
><A
NAME="references.global"
><VAR
CLASS="literal"
>global</VAR
> References</A
></H2
><P
>&#13;     When you declare variable as <B
CLASS="command"
>global $var</B
> you
     are in fact creating reference to a global variable. That means,
     this is the same as:
     <DIV
CLASS="informalexample"
><P
></P
><A
NAME="AEN3672"
></A
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br />$var </font><font color="#007700">=&amp; </font><font color="#0000BB">$GLOBALS</font><font color="#007700">[</font><font color="#DD0000">"var"</font><font color="#007700">];<br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
><P
></P
></DIV
>
    </P
><P
>&#13;     That means, for example, that unsetting <VAR
CLASS="varname"
>$var</VAR
>
     won't unset global variable.
    </P
></DIV
><DIV
CLASS="sect2"
><H2
CLASS="sect2"
><A
NAME="references.this"
><VAR
CLASS="literal"
>$this</VAR
></A
></H2
><P
>&#13;     In an object method, <VAR
CLASS="varname"
>$this</VAR
> is always reference
     to the caller object.
    </P
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="language.references.unset.html"
ACCESSKEY="P"
>Înapoi</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Acas&#227;</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="security.html"
ACCESSKEY="N"
>Înainte</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Unsetting References</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="language.references.html"
ACCESSKEY="U"
>Sus</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Security</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>