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Source of: /manual/en/function.ob-list-handlers.php

<?php
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/shared-manual.inc';
$TOC = array();
$PARENTS = array();
include_once dirname(__FILE__) ."/toc/ref.outcontrol.inc";
$setup = array (
  'home' =>
  array (
    0 => 'index.php',
    1 => 'PHP Manual',
  ),
  'head' =>
  array (
    0 => 'UTF-8',
    1 => 'en',
  ),
  'this' =>
  array (
    0 => 'function.ob-list-handlers.php',
    1 => 'ob_list_handlers',
  ),
  'up' =>
  array (
    0 => 'ref.outcontrol.php',
    1 => 'Output Control Functions',
  ),
  'prev' =>
  array (
    0 => 'function.ob-implicit-flush.php',
    1 => 'ob_implicit_flush',
  ),
  'next' =>
  array (
    0 => 'function.ob-start.php',
    1 => 'ob_start',
  ),
);
$setup["toc"] = $TOC;
$setup["parents"] = $PARENTS;
manual_setup($setup);

manual_header();
?>
<div id="function.ob-list-handlers" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ob_list_handlers</h1>
  <p class="verinfo">(PHP 4 &gt;= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">ob_list_handlers</span> &mdash; <span class="dc-title">List all output handlers in use</span></p>

 </div>
 
 <a name="function.ob-list-handlers.description"></a><div class="refsect1 description">
  <h3 class="title">Description</h3>
  <div class="methodsynopsis dc-description">
   <span class="type">array</span> <span class="methodname"><b>ob_list_handlers</b></span>
    ( <span class="methodparam">void</span>
   )</div>

  <p class="para rdfs-comment">
   Lists all output handlers in use.
  </p>
 </div>


 <a name="function.ob-list-handlers.returnvalues"></a><div class="refsect1 returnvalues">
  <h3 class="title">Return Values</h3>
  <p class="para">
   This will return an array with the output handlers in use (if any). If
   <a href="outcontrol.configuration.php#ini.output-buffering" class="link">output_buffering</a> is enabled or
   an anonymous function was used with <a href="function.ob-start.php" class="function">ob_start()</a>,
   <b>ob_list_handlers()</b> will return &quot;default output
   handler&quot;.
  </p>
 </div>


 <a name="function.ob-list-handlers.examples"></a><div class="refsect1 examples">
  <h3 class="title">Examples</h3>
  <p class="para">
   </p><div class="example">
    <p><b>Example #1 <b>ob_list_handlers()</b> example</b></p>
    <div class="example-contents programlisting">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #FF8000">//using&nbsp;output_buffering=On<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ob_list_handlers</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">ob_end_flush</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">ob_start</span><span style="color: #007700">(</span><span style="color: #DD0000">"ob_gzhandler"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ob_list_handlers</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">ob_end_flush</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">//&nbsp;anonymous&nbsp;functions<br /></span><span style="color: #0000BB">ob_start</span><span style="color: #007700">(</span><span style="color: #0000BB">create_function</span><span style="color: #007700">(</span><span style="color: #DD0000">'$string'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'return&nbsp;$string;'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">ob_list_handlers</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">ob_end_flush</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents para"><p>The above example will output:</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
Array
(
    [0] =&gt; default output handler
)

Array
(
    [0] =&gt; ob_gzhandler
)

Array
(
    [0] =&gt; default output handler
)
</pre></div>
    </div>
   </div><p>
  </p>
 </div>


 <a name="function.ob-list-handlers.seealso"></a><div class="refsect1 seealso">
  <h3 class="title">See Also</h3>
  <p class="para">
   </p><ul class="simplelist">
    <li class="member"><a href="function.ob-end-clean.php" class="function" rel="rdfs-seeAlso">ob_end_clean()</a> - Clean (erase) the output buffer and turn off output buffering</li>
    <li class="member"><a href="function.ob-end-flush.php" class="function" rel="rdfs-seeAlso">ob_end_flush()</a> - Flush (send) the output buffer and turn off output buffering</li>
    <li class="member"><a href="function.ob-get-flush.php" class="function" rel="rdfs-seeAlso">ob_get_flush()</a> - Flush the output buffer, return it as a string and turn off output buffering</li>
    <li class="member"><a href="function.ob-start.php" class="function" rel="rdfs-seeAlso">ob_start()</a> - Turn on output buffering</li>
   </ul><p>
  </p>
 </div>


</div><?php manual_footer(); ?>
 
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