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<title>Register a PHP function to Lua</title>
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<h1 class="refname">Lua::registerCallback</h1>
<p class="verinfo">(No version information available, might only be in SVN)</p><p class="refpurpose"><span class="refname">Lua::registerCallback</span> — <span class="dc-title">Register a PHP function to Lua</span></p>
</div>
<div class="refsect1 description" id="refsect1-lua.registercallback-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <span class="methodname"><strong>Lua::registerCallback</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$name</code></span>
, <span class="methodparam"><span class="type"><a href="language.types.callable.html" class="type callable">callable</a></span> <code class="parameter">$function</code></span>
)</div>
<p class="para rdfs-comment">
Register a PHP function to Lua as a function named "$name"
</p>
</div>
<div class="refsect1 parameters" id="refsect1-lua.registercallback-parameters">
<h3 class="title">Parameters</h3>
<dl>
<dt>
<span class="term"><em><code class="parameter">name</code></em></span>
<dd>
<p class="para">
</p>
</dd>
</dt>
<dt>
<span class="term"><em><code class="parameter">function</code></em></span>
<dd>
<p class="para">
A valid PHP function callback
</p>
</dd>
</dt>
</dl>
</div>
<div class="refsect1 returnvalues" id="refsect1-lua.registercallback-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <var class="varname"><var class="varname">$this</var></var>, <strong><code>NULL</code></strong> for wrong arguments or <strong><code>FALSE</code></strong> on
other failure.
</p>
</div>
<div class="refsect1 examples" id="refsect1-lua.registercallback-examples">
<h3 class="title">Examples</h3>
<div class="example" id="example-3769">
<p><strong>Example #1 <span class="function"><strong>Lua::registerCallback()</strong></span>example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$lua </span><span style="color: #007700">= new </span><span style="color: #0000BB">Lua</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$lua</span><span style="color: #007700">-></span><span style="color: #0000BB">registerCallback</span><span style="color: #007700">(</span><span style="color: #DD0000">"echo"</span><span style="color: #007700">, </span><span style="color: #DD0000">"var_dump"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$lua</span><span style="color: #007700">-></span><span style="color: #0000BB">eval</span><span style="color: #007700">(<<<CODE<br /></span><span style="color: #DD0000"> echo({1, 2, 3});<br /></span><span style="color: #007700">CODE<br />);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
array(3) {
[1]=>
float(1)
[2]=>
float(2)
[3]=>
float(3)
}
</pre></div>
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