<?php
function partial()
{
    if(!class_exists('partial'))
    {
        class partial{
            var $values = array();
            var $func;

            function partial($func, $args)
            {
                $this->values = $args;
                $this->func = $func;
            }

            function method($str)
            {
                $args = func_get_args();
                return call_user_func_array($this->func, array_merge($args, $this->values));
            }
        }
    }
    //assume $0 is funcname, $1-$x is partial values
    $args = func_get_args();   
    $func = $args[0];
    $p = new partial($func, array_slice($args,1));
    return array($p, 'method');
}

$data = array("O'Reilly","Zend","Prentice Hall", "Wrox","IDG", "MacMillan");
$data = $data + $data + $data;
define("ITERATIONS",10000);
require_once 'Benchmark/Timer.php';
$timer = new Benchmark_Timer(TRUE);
for($i=0;$i<ITERATIONS;$i++)
{
    $data2 = array();
    foreach($data as $k=>$v)
    {
        $data2[$k] = htmlentities($v, ENT_QUOTES);
    }
}
$timer->setMarker('Using foreach loop ENT_QUOTES: ' . memory_get_usage(true));

for($i=0;$i<ITERATIONS;$i++)
{
    $data2 = array();
    foreach($data as $k=>$v)
    {
        $data2[$k] = htmlentities($v);
    }
}
$timer->setMarker('foreach loop w/o ENT_QUOTES: ' . memory_get_usage(true));

for($i=0;$i<ITERATIONS;$i++)
{
    $data2 = array_map('htmlentities', $data);
}
$timer->setMarker('Using array_map: ' . memory_get_usage(true));

for($i=0;$i<ITERATIONS;$i++)
{
    $data2 = array_map(partial('htmlentities', ENT_QUOTES), $data);
}
$timer->setMarker('Using array_map with partialed htmlentities: ' . memory_get_usage(true));

for($i=0;$i<ITERATIONS;$i++)
{
    $manual = create_function('$v','return htmlentities($v,ENT_QUOTES);');
    $data2 = array_map($manual, $data);
}
$timer->setMarker('Using array_map with create_function wrapped htmlentities: ' . memory_get_usage(true));

$timer->stop();
#$timer->display();