pimple_insertion.php

<?php

/**
 * $ curl -sS https://getcomposer.org/installer | php
 * #!/usr/bin/env php
 * All settings correct for using Composer
 * Downloading...
 *
 * Composer successfully installed to: /Users/d-tamaki/tmp/php/pimple/composer.phar
 * Use it: php composer.phar
 *
 * $ php composer.phar require 'pimple/pimple' '~3.0'
 * ./composer.json has been updated
 * Loading composer repositories with package information
 * Updating dependencies (including require-dev)
 *   - Installing pimple/pimple (v3.0.0)
 *     Downloading: 100%
 * 
 *   - Installing monolog/monolog (1.2.1)
 *     Downloading: 100%
 * 
 * monolog/monolog suggests installing mlehner/gelf-php (Allow sending log messages to a GrayLog2 server)
 * monolog/monolog suggests installing ext-amqp (Allow sending log messages to an AMQP server (1.0+ required))
 * monolog/monolog suggests installing ext-mongo (Allow sending log messages to a MongoDB server)
 * Writing lock file
 * Generating autoload files
 *
 * $ php good.php
 * $ php bad.php
 */

/*
$ php good.php
array(2) {
  ["sum"]=>
  float(1.1425030231476)
  ["avg"]=>
  float(0.00011426172848761)
}

$ php bad.php
array(2) {
  ["sum"]=>
  float(3.0512113571167)
  ["avg"]=>
  float(0.00030515165087676)
}
*/

?>
<?php

/* good.php */

require 'lib.php';

$c = new \Pimple\Container;

$alphabet = array_repeat(10, buildAlphabets());

foreach ($alphabet as $key => $a) {
    $n = $key + 1;

    $c[$key] = function($c) use ($a, $n) {
        $next = $c[$n];

        return function() use ($a, $next) {
            return $a . $next();
        };
    };
}

$c[count($alphabet)] = function($c) {
    return function() {
        return '!';
    };
};

var_dump(run($c));

?>
<?php

/* bad.php */

require 'lib.php';

$c = new \Pimple\Container;

$alphabet = array_repeat(10, buildAlphabets());

foreach ($alphabet as $key => $a) {
    $n = $key + 1;

    $c[$key] = function($c) use ($a, $n) {
        return function() use ($a, $c, $n) {
            return $a . $c[$n]();
        };
    };
}

$c[count($alphabet)] = function($c) {
    return function() {
        return '!';
    };
};

var_dump(run($c));

?>
<?php

/* lib.php */

require __DIR__ . '/vendor/autoload.php';

function array_repeat($time, array $array)
{
    $result = array();

    for ($i = 0; $i < $time; ++$i) {
        $result = array_merge($result, $array);
    }

    return $result;
}

function buildAlphabets()
{
    return array_merge(range('A', 'Z'), range('a', 'z'));
}


function run(\Pimple\Container $c)
{
    // Execute
    $results = array();
    $i = 0;

    while (++$i < 10000) {
        $start = microtime(true);
        $c[0]();
        $end = microtime(true);
        $results[] = $end - $start;
    }

    $sum = array_sum($results);
    $count = count($results);

    return array(
        'sum' => $sum,
        'avg' => $sum/$count,
    );
}