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    <p>Proper anonymous functions / closures are only available in PHP 5.3, which will not be widely available for a while - <a href="http://wiki.php.net/rfc/closures" rel="nofollow noreferrer">some useful information</a>. I don't think it is really possible to do what you want.</p> <p>You can use <code>create_function()</code> to an extent:</p> <pre><code>$func = create_function('$baz', ' echo strtoupper($baz); '); $func("hello"); </code></pre> <p>However the following does not work as you would expect:</p> <pre><code>$foo = new Foo; $foo-&gt;bar = create_function('$baz', ' echo strtoupper($baz); '); $foo-&gt;bar('lorem ipsum dolor sit amet'); </code></pre> <p>You would need to do instead:</p> <pre><code>call_user_func($foo-&gt;bar, 'lorem ipsum dolor sit amet'); </code></pre> <p>Also you can't use <code>$this</code> inside the created function because its scope would not be the same as a method.</p> <p><strong>Edit</strong></p> <p>I accidentally duplicated some of Martijn's answer as he edited his while I was writing mine. I will leave my answer intact for the sake of completeness</p> <p><strong>Another edit</strong></p> <p>You could maybe also do something like</p> <pre><code>class Foo { public $bar; protected $anonFuncs = array(); public function create_method($name, $params, $code) { if (strlen($params)) $params .= ','; $params .= '$self'; $this-&gt;anonFuncs[$name] = create_function($params, $code); } public function __call($name, $args) { if (!isset($this-&gt;anonFuncs[$name])) { trigger_error("No method $name", E_USER_ERROR); } $args[] = $this; return call_user_func_array($this-&gt;anonFuncs[$name], $args); } } $foo = new Foo; $foo-&gt;create_method('bar', '$baz', ' echo strtoupper($baz) . get_class($self); '); $foo-&gt;bar('lorem ipsum dolor sit amet'); </code></pre>
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    1. POClosures as class members?
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    1. USTom Haigh
    1. USTom Haigh
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      1. VTUpMod
    1. COjust beware, don't use it in a loop, as it will eat memory. functions are not freed once created.
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      1. USKent Fredric
    2. COPutting code inside quotes is... ugh. I was hoping the closures would let us do away with that.
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      1. USmonzee
    3. COyeah agreed. the closures in 5.3 will let you do away with it.
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      1. USTom Haigh
 

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