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

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

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>Output Control Functions</TITLE
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><DIV
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><A
NAME="ref.outcontrol"
></A
><DIV
CLASS="TITLEPAGE"
><H1
CLASS="title"
>LXXXI. Output Control Functions</H1
><DIV
CLASS="PARTINTRO"
><A
NAME="AEN86658"
></A
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.intro"
>Introducere</A
></H1
><P
>&#13;     The Output Control functions allow you to control when output is
     sent from the script. This can be useful in several different
     situations, especially if you need to send headers to the browser
     after your script has began outputting data. The Output Control
     functions do not affect headers sent using
     <A
HREF="function.header.html"
><B
CLASS="function"
>header()</B
></A
> or <A
HREF="function.setcookie.html"
><B
CLASS="function"
>setcookie()</B
></A
>,
     only functions such as <A
HREF="function.echo.html"
><B
CLASS="function"
>echo()</B
></A
> and data between
     blocks of PHP code.
    </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.requirements"
>Necesitãþi</A
></H1
><P
>Aceste funcþii sunt disponibile ca
pãrþi ale modulului standard care este întotdeauna disponibil.</P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.installation"
>Instalare</A
></H1
><P
>Nu este necesarã o instalare a acestor funcþii,
ele fac parte din PHP.</P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.configuration"
>Configurare la rulare</A
></H1
><P
>&#13;The behaviour of these functions is affected by settings in <TT
CLASS="filename"
>php.ini</TT
>.
</P
><P
>&#13;  <DIV
CLASS="table"
><A
NAME="AEN86676"
></A
><P
><B
>Tabel 1. Output Control configuration options</B
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><COL><COL><COL><THEAD
><TR
><TH
>Name</TH
><TH
>Default</TH
><TH
>Changeable</TH
></TR
></THEAD
><TBODY
><TR
><TD
>output_buffering</TD
><TD
>"0"</TD
><TD
>PHP_INI_PERDIR|PHP_INI_SYSTEM</TD
></TR
><TR
><TD
>output_handler</TD
><TD
>NULL</TD
><TD
>PHP_INI_PERDIR|PHP_INI_SYSTEM</TD
></TR
><TR
><TD
>implicit_flush</TD
><TD
>"0"</TD
><TD
>PHP_INI_PERDIR|PHP_INI_SYSTEM</TD
></TR
></TBODY
></TABLE
></DIV
>
   For further details and definition of the PHP_INI_* constants see
  <A
HREF="function.ini-set.html"
><B
CLASS="function"
>ini_set()</B
></A
>.
 </P
><P
>Here's a short explanation of
the configuration directives.</P
><P
>&#13; <P
></P
><DIV
CLASS="variablelist"
><DL
><DT
><A
NAME="ini.output-buffering"
></A
><VAR
CLASS="parameter"
>output_buffering</VAR
>
    <A
HREF="language.types.boolean.html"
><B
CLASS="type"
>boolean</B
></A
>/<A
HREF="language.types.integer.html"
><B
CLASS="type"
>integer</B
></A
></DT
><DD
><P
>&#13;     You can enable output buffering for all files by setting this directive
     to 'On'. If you wish to limit the size of the buffer to a certain size -
     you can use a maximum number of bytes instead of 'On', as a value for
     this directive (e.g., output_buffering=4096).
    </P
></DD
><DT
><A
NAME="ini.output-handler"
></A
><VAR
CLASS="parameter"
>output_handler</VAR
>
    <A
HREF="language.types.string.html"
><B
CLASS="type"
>string</B
></A
></DT
><DD
><P
>&#13;     You can redirect all of the output of your scripts to a function. For
     example, if you set output_handler to
     <A
HREF="function.mb-output-handler.html"
><B
CLASS="function"
>mb_output_handler()</B
></A
>, character encoding will be
     transparently converted to the specified encoding. Setting any output
     handler automatically turns on output buffering.
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Not&#227;: </B
>
      You cannot use both <A
HREF="function.mb-output-handler.html"
><B
CLASS="function"
>mb_output_handler()</B
></A
> with
      <B
CLASS="function"
>ob_inconv_handler()</B
> and you cannot use both
      <A
HREF="function.ob-gzhandler.html"
><B
CLASS="function"
>ob_gzhandler()</B
></A
> and
      <A
HREF="ref.zlib.html#ini.zlib.output-compression"
>zlib.output_compression</A
>.
     </P
></BLOCKQUOTE
></DIV
></DD
><DT
><A
NAME="ini.implicit-flush"
></A
><VAR
CLASS="parameter"
>implicit_flush</VAR
>
    <A
HREF="language.types.boolean.html"
><B
CLASS="type"
>boolean</B
></A
></DT
><DD
><P
>&#13;     <TT
CLASS="constant"
><B
>FALSE</B
></TT
> by default. Changing this to <TT
CLASS="constant"
><B
>TRUE</B
></TT
> tells PHP to tell the
     output layer to flush itself automatically after every output block.
     This is equivalent to calling the <VAR
CLASS="literal"
>PHP</VAR
> function
     <A
HREF="function.flush.html"
><B
CLASS="function"
>flush()</B
></A
> after each and every call to
     <A
HREF="function.print.html"
><B
CLASS="function"
>print()</B
></A
> or <A
HREF="function.echo.html"
><B
CLASS="function"
>echo()</B
></A
> and each and
     every <VAR
CLASS="literal"
>HTML</VAR
> block.
    </P
><P
>&#13;     When using <VAR
CLASS="literal"
>PHP</VAR
> within an web environment, turning
     this option on has serious performance implications and is generally
     recommended for debugging purposes only. This value defaults to
     <TT
CLASS="constant"
><B
>TRUE</B
></TT
> when operating under the <VAR
CLASS="literal"
>CLI SAPI</VAR
>.
    </P
><P
>&#13;     See also <A
HREF="function.ob-implicit-flush.html"
><B
CLASS="function"
>ob_implicit_flush()</B
></A
>.
    </P
></DD
></DL
></DIV
>
 </P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.resources"
>Tipuri de resurse</A
></H1
><P
>Aceastã extensie nu defineºte tipuri de resurse.</P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.constants"
>Constante predefinite</A
></H1
><P
>Aceastã extensie nu defineºte constante.</P
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.examples"
>Exemple</A
></H1
><P
>&#13;     <TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
CLASS="EXAMPLE"
><TR
><TD
><DIV
CLASS="example"
><A
NAME="AEN86749"
></A
><P
><B
>Exemplu 1. Output Control example</B
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
CELLPADDING="5"
><TR
><TD
><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br />ob_start</font><font color="#007700">();<br />echo </font><font color="#DD0000">"Hello\n"</font><font color="#007700">;<br /><br /></font><font color="#0000BB">setcookie</font><font color="#007700">(</font><font color="#DD0000">"cookiename"</font><font color="#007700">, </font><font color="#DD0000">"cookiedata"</font><font color="#007700">);<br /><br /></font><font color="#0000BB">ob_end_flush</font><font color="#007700">();<br /><br /></font><font color="#0000BB">?&gt;</font>
</font>
</code></TD
></TR
></TABLE
></DIV
></TD
></TR
></TABLE
>
    </P
><P
>&#13;     In the above example, the output from <A
HREF="function.echo.html"
><B
CLASS="function"
>echo()</B
></A
>
     would be stored in the output buffer until
     <A
HREF="function.ob-end-flush.html"
><B
CLASS="function"
>ob_end_flush()</B
></A
> was called. In the mean time,
     the call to <A
HREF="function.setcookie.html"
><B
CLASS="function"
>setcookie()</B
></A
> successfully stored a
     cookie without causing an error. (You can not normally send
     headers to the browser after data has already been sent.)
    </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Not&#227;: </B
>
      When upgrading from PHP 4.1 (and 4.2) to 4.3 that due to a bug in
      earlier versions you must ensure that
      <VAR
CLASS="literal"
>implict_flush</VAR
> is <VAR
CLASS="literal"
>OFF</VAR
> in
      your <TT
CLASS="filename"
>php.ini</TT
>, otherwise any output with
      <A
HREF="function.ob-start.html"
><B
CLASS="function"
>ob_start()</B
></A
> will not be hidden from output.
     </P
></BLOCKQUOTE
></DIV
></DIV
><DIV
CLASS="section"
><H1
CLASS="section"
><A
NAME="outcontrol.seealso"
>Vezi, de asemenea,</A
></H1
><P
>&#13;     See also <A
HREF="function.header.html"
><B
CLASS="function"
>header()</B
></A
> and
     <A
HREF="function.setcookie.html"
><B
CLASS="function"
>setcookie()</B
></A
>.
    </P
></DIV
></DIV
><DIV
CLASS="TOC"
><DL
><DT
><B
>Cuprins</B
></DT
><DT
><A
HREF="function.flush.html"
>flush</A
>&nbsp;--&nbsp;Flush the output buffer</DT
><DT
><A
HREF="function.ob-clean.html"
>ob_clean</A
>&nbsp;--&nbsp;
     Clean (erase) the output buffer
    </DT
><DT
><A
HREF="function.ob-end-clean.html"
>ob_end_clean</A
>&nbsp;--&nbsp;
     Clean (erase) the output buffer and turn off output buffering
    </DT
><DT
><A
HREF="function.ob-end-flush.html"
>ob_end_flush</A
>&nbsp;--&nbsp;
     Flush (send) the output buffer and turn off output buffering
    </DT
><DT
><A
HREF="function.ob-flush.html"
>ob_flush</A
>&nbsp;--&nbsp;
     Flush (send) the output buffer
    </DT
><DT
><A
HREF="function.ob-get-clean.html"
>ob_get_clean</A
>&nbsp;--&nbsp;
     Get current buffer contents and delete current output buffer
    </DT
><DT
><A
HREF="function.ob-get-contents.html"
>ob_get_contents</A
>&nbsp;--&nbsp;
     Return the contents of the output buffer
    </DT
><DT
><A
HREF="function.ob-get-flush.html"
>ob_get_flush</A
>&nbsp;--&nbsp;
     Flush the output buffer, return it as a string and turn off output buffering
    </DT
><DT
><A
HREF="function.ob-get-length.html"
>ob_get_length</A
>&nbsp;--&nbsp;
     Return the length of the output buffer
    </DT
><DT
><A
HREF="function.ob-get-level.html"
>ob_get_level</A
>&nbsp;--&nbsp;
     Return the nesting level of the output buffering mechanism
    </DT
><DT
><A
HREF="function.ob-get-status.html"
>ob_get_status</A
>&nbsp;--&nbsp;
     Get status of output buffers
    </DT
><DT
><A
HREF="function.ob-gzhandler.html"
>ob_gzhandler</A
>&nbsp;--&nbsp;
     ob_start callback function to gzip output buffer
    </DT
><DT
><A
HREF="function.ob-implicit-flush.html"
>ob_implicit_flush</A
>&nbsp;--&nbsp;
     Turn implicit flush on/off 
    </DT
><DT
><A
HREF="function.ob-list-handlers.html"
>ob_list_handlers</A
>&nbsp;--&nbsp;
     List all output handlers in use
    </DT
><DT
><A
HREF="function.ob-start.html"
>ob_start</A
>&nbsp;--&nbsp;Turn on output buffering</DT
><DT
><A
HREF="function.output-add-rewrite-var.html"
>output_add_rewrite_var</A
>&nbsp;--&nbsp;
     Add URL rewriter values
    </DT
><DT
><A
HREF="function.output-reset-rewrite-vars.html"
>output_reset_rewrite_vars</A
>&nbsp;--&nbsp;
     Reset URL rewriter values
    </DT
></DL
></DIV
></DIV
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