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<h1 class="refname">SessionHandler::open</h1>
<p class="verinfo">(PHP 5 >= 5.4.0)</p><p class="refpurpose"><span class="refname">SessionHandler::open</span> — <span class="dc-title">Initialize session</span></p>
</div>
<div class="refsect1 description" id="refsect1-sessionhandler.open-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>SessionHandler::open</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$save_path</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$session_id</code></span>
)</div>
<p class="para rdfs-comment">
Create new session, or re-initialize existing session. Called internally by PHP when
a session starts either automatically or when <span class="function"><a href="function.session-start.html" class="function">session_start()</a></span> is invoked.
</p>
<p class="para">
This method wraps the internal PHP save handler defined in the
<a href="session.configuration.html#ini.session.save-handler" class="link">session.save_handler</a> ini setting that was set
before this handler was set by <span class="function"><a href="function.session-set-save-handler.html" class="function">session_set_save_handler()</a></span>.
</p>
<p class="para">
If this class is extended by inheritiance, calling the parent <em><code class="parameter">open</code></em> method will invoke the
wrapper for this method and therefor invoke the associated internal callback. This allows this method to be
overidden and or intercepted and filtered.
</p>
<p class="para">
For more information on what this method is expected to do, please refer to the documentation at
<span class="function"><a href="sessionhandlerinterface.open.html" class="function">SessionHandlerInterface::open()</a></span>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-sessionhandler.open-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<span class="term"><em><code class="parameter">save_path</code></em></span>
<dd>
<p class="para">
The path where to store/retrieve the session.
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">session_id</code></em></span>
<dd>
<p class="para">
The session id.
</p>
</dd>
</dt>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-sessionhandler.open-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
The return value (usually <strong><code>TRUE</code></strong> on success, <strong><code>FALSE</code></strong> on failure). Note this value is returned internally to PHP for processing.
</p>
</div>
<div class="refsect1 seealso" id="refsect1-sessionhandler.open-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member">
The <a href="session.configuration.html#ini.session.auto-start" class="link">session.auto-start</a>
configuration directive.
</li>
</ul>
</p>
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