substr() vs substr_replace() Test

<?php
error_reporting(E_ALL & ~E_NOTICE);
/*****************************************************************************
 *  Copyright notice
 *
 *  ⓒ 2013 Michiel Roos <[email protected]>
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is free
 *  software; you can redistribute it and/or modify it under the terms of the
 *  GNU General Public License as published by the Free Software Foundation;
 *  either version 2 of the License, or (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *
 *  This script is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 *  or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
 *  more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ****************************************************************************/

// Setup
$testName = 'substr() vs substr_replace()';
$runs = 100;

// Parameter Sets
$parameterSets = array(
    'set1' => array (
        'string' => 'some.KeyValue',
        'key' => 'some',
        'description' => 'Regular use',
    )
);

/*****************************************************************************
 * Tests:
 ****************************************************************************/

/**
 * Baseline
 */
$descriptions['version1'] = 'substr()';
function version1($string, $key) {
    return substr($string, strlen($key));
}

$descriptions['version2'] = 'substr_replace()';
function version2($string, $key) {
    return substr_replace($string, '', 0, strlen($key));
}

/*****************************************************************************
 * Helper functions needed for test:
 ****************************************************************************/


/*****************************************************************************
 * System:
 ****************************************************************************/

function getmicrotime() {
    $t = gettimeofday();
    return $t['sec'] * 1000 + $t['usec'] / 1000;
}

// How many runs?
if (isset($_GET['runs']) && $_GET['runs']) {
    $runs = (preg_replace('/[^0-9]/', '', $_GET['runs'])) ?
        (preg_replace('/[^0-9]/', '', $_GET['runs'])) :
        $runs;
}

$baselineTimes = array();
$functions = get_defined_functions();

foreach ($parameterSets as $setName => $parameters) {
    $baselineRun = TRUE;
    // Description is used later on, so clone the parameters
    $functionParameters = $parameters;
    unset($functionParameters['description']);
    foreach ($functions['user'] as $function) {
        if (strpos($function, 'version', 0) === 0) {
            $result = array();
            $start = getmicrotime();
            for ($i = 0; $i < $runs; $i++) {
                $functionToCall = new ReflectionFunction($function);
                $result = $functionToCall->invokeArgs($functionParameters);
            }
            $end = getmicrotime();
            $time = $end - $start;
            if ($baselineRun) {
                $baselineTimes[$setName] = $time;
                $baselineRun = FALSE;
            }
            $xAxis[] = $function;
            if (is_array($result)) {
            $resultObjects[$setName][$function] = array_slice($result, 0, 20, TRUE);
            } else {
                $resultObjects[$setName][$function] = $result;
            }
            $times[$setName][$function] = sprintf('%1.3f', $time);
            $i++;
        }
    }
}

function findWinner($times) {
    $cumulativeTimes = array();
    foreach ($times as $setName => $timeData) {
        foreach ($timeData as $functionName => $time) {
            if (isset($cumulativeTimes[$functionName])) {
                $cumulativeTimes['overall'][$functionName] += $time;
                $cumulativeTimes[$setName][$functionName] += $time;
            } else {
                $cumulativeTimes['overall'][$functionName] = $time;
                $cumulativeTimes[$setName][$functionName] = $time;
            }
        }
    }
    $cumulativeTimes = array_filter($cumulativeTimes, 'asort');
    return $cumulativeTimes;
}

$cumulativeTimes = (findWinner($times));

?>
<html>
<head>
    <title><?php  echo $testName ?> | TYPO3 Tiny Test Suite</title>
    <link rel="stylesheet" href="http://wiki.typo3.org/wiki/load.php?debug=false&amp;lang=en&amp;modules=mediawiki.legacy.commonPrint%2Cshared%7Cskins.typo3vector&amp;only=styles&amp;skin=typo3vector&amp;*" />
    <script src="http://code.jquery.com/jquery-2.0.3.min.js" type="text/javascript"></script>
    <script src="http://code.highcharts.com/highcharts.js" type="text/javascript"></script>
    <script src="http://code.highcharts.com/modules/exporting.js" type="text/javascript"></script>
</head>
<body>
<div id="content" class="mw-body" role="main">
    <h1 id="top"><?php echo $testName ?></h1>
    <p>The overall winning function is <strong><?php echo key(array_slice($cumulativeTimes['overall'], 0, 1)) ?></strong>.</p>
    <?php
        if (count($parameterSets) > 1) {
            echo '<ul>';
            foreach ($cumulativeTimes as $set => $functions) {
                if ($set === 'overall') { continue; }
                echo '<li><b>' . $set . '</b>: ' . key(array_slice($functions, 0, 1)) . '</li>';
            }
            echo '</ul>';
        }
    ?>
    <p>Run the tests how many times?</p>
    <form action="<?php echo basename(__FILE__) ?>">
        <input name="runs" id="runs" value="<?php echo $runs ?>"/>
        <input class="submit" type="submit" value="Go!"/>
    </form>
    <div id="resultGraph" style="min-width: 310px; min-height: 400px; margin: 0 auto"></div>
    <?php
        foreach ($times as $setName => $functionData) {
            echo '<h2>' . ucfirst($setName) . '</h2>';
            echo '<p>' . $parameterSets[$setName]['description'] . '</p>';
            echo '<ul>';
            foreach ($parameterSets[$setName] as $key => $value) {
                if ($key !== 'description') {
                    if (is_array($value)) {
                        echo '<li>' . $key . ':'. '</li>';
                        echo var_dump($value);
                    } else {
                        echo '<li>' . $key . ' = "' . (string) $value . '"</li>';
                    }
                } else {
                    $setDescriptions[] = $value;
                }
            }
            echo '</ul>';
            echo '<ul>';
            foreach ($functionData as $function => $time) {
                $identifier = $setName . '-' . $function;
                echo '<li><a style="text-decoration: none" href="#' . $identifier . '">' .
                    ucfirst($function) .
                    '</a> ' .
                    ': ' .
                    sprintf('<span style="width: 33px; display: inline-block; text-align: right; font-weight: bold;">%1.2d%%</span> ', $time * 100 / $baselineTimes[$setName]) .
                    $descriptions[$function] .
                    '</li>';
            }
            echo '</ul>';
        }
    ?>
    <script>
        /**
         * Format an integer as a time value
         *
         * @param {String} time The value to format in microseconds.
         * @param {Number} decimals The amount of decimals
         *
         * @return string
         */
        function printSeconds(time, decimals) {
           decimals = typeof decimals !== 'undefined' ? decimals : 2;
            var prefix = '',
                suffix = 'μs';
            if (time < 0) {
                time = Math.abs(time);
                prefix = '-';
            }

            if (time == 0) {
                suffix = '';
            }

            if (time >= 1000) {
                time = time / 1000;
                suffix = 'ms';
            }

            if (time >= 1000) {
                time = time / 1000;
                suffix = ' s';
            }

            if (time >= 60 && suffix == ' s') {
                time = time / 60;
                suffix = 'min!';
            }

            return prefix + Highcharts.numberFormat(time, decimals) + ' ' + suffix;
        }

        var baseLineTimes = [<?php echo implode(',', $baselineTimes) ?>];
        var descriptions = ['<?php echo implode("','", array_map('addslashes', $descriptions)) ?>'];
        var setDescriptions = ['<?php echo implode("','", array_map('addslashes', $setDescriptions)) ?>'];
        Highcharts.setOptions({
            colors: ['#f58006', '#f50806', '#067bf5', '#f5bc06', '#8006f5']
        });
        jQuery(document).ready(function($) {
            $('#resultGraph').highcharts({
                chart: {
//                  type: 'bar'
                    zoomType: 'y'
                },
                title: {
                    text: '<?php echo $testName ?>'
                },
                xAxis: {
                    categories: ['<?php echo implode("','", $xAxis)  ?>'],
                    title: {
                        text: null
                    }
                },
                yAxis: {
                    min: 0,
                    title: {
                        text: 'Time (milliseconds)',
                        align: 'high'
                    },
                    labels: {
                        overflow: 'justify',
                        formatter: function() {
                            return printSeconds(this.value);
                        }
                    }
                },
                tooltip: {
                    useHTML: true,
                    formatter: function() {
                        return '<strong><a style="text-decoration: none" href="#' + this.point.series.name + '-' + this.point.category + '">' + descriptions[this.point.x] + '</a></strong><br/>' +
                            setDescriptions[this.series.index] + '<br/>' +
                            printSeconds(this.point.y) +
                            ' (' + Math.ceil(this.point.y * 100 / baseLineTimes[this.point.series.index]) + '%)';
                    }
                },
                legend: {
                    enabled: true
                },
                credits: {
                    enabled: false
                },
                series: [
                    <?php
                    foreach ($times as $setName => $setTimes) {
                        $series[] = "{
                            name: '" . $setName . "',
                            data: [" . implode(',', $setTimes) . "]
                        }";
                    }
                    echo implode(',', $series);
                    ?>
                ]
            });
        });
    </script>
    <h2>Data results</h2>
    <?php
        foreach ($times as $setName => $functionData) {
            echo '<h3>' . ucfirst($setName) . '</h3>';
            echo '<p>' . $parameterSets[$setName]['description'] . '</p>';
            echo '<ul>';
            foreach ($parameterSets[$setName] as $key => $value) {
                if ($key !== 'description') {
                    echo '<li>' . $key . ' = "' . (string) $value . '"</li>';
                }
            }
            echo '</ul>';
            foreach ($functionData as $function => $time) {
                $identifier = $setName . '-' . $function;
                echo '<h4 id="' . $identifier . '">' . ucfirst($function) . '</h4>';
                echo '<p>' . $descriptions[$function] . '</p>';
                var_dump($resultObjects[$setName][$function]);
                echo '<a href="#top" style="color: #ddd; text-decoration: none;">^ top</a>';
            }
        }
    ?>
    <div id="p-personal" role="navigation" class="">
        <ul>
    <?php
    foreach ($resultObjects as $setName => $functionData) {
        foreach ($functionData as $function => $data) {
        echo '<li><a href="#' . $setName . '-' . $function . '">' . ucfirst($setName) . ' ' . ucfirst($function)  . '</a></h3>';
        }
    }
    ?>
        </ul>
    </div>
</div>
</body>
</html>