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Comparator
This component provides the functionality to compare PHP values for equality.
Installation
To add Comparator as a local, per-project dependency to your project, simply add a dependency on sebastian/comparator to your project's composer.json file. Here is a minimal example of a composer.json file that just defines a dependency on Comparator 1.2:


    {
    "require": {
        "sebastian/comparator": "~1.2"
    }
}

  
Usage

  
    <?php
use SebastianBergmann\Comparator\Factory;
use SebastianBergmann\Comparator\ComparisonFailure;

$date1 = new DateTime('2013-03-29 04:13:35', new DateTimeZone('America/New_York'));
$date2 = new DateTime('2013-03-29 03:13:35', new DateTimeZone('America/Chicago'));

$factory = new Factory;
$comparator = $factory->getComparatorFor($date1, $date2);

try {
    $comparator->assertEquals($date1, $date2);
    print "Dates match";
}

catch (ComparisonFailure $failure) {
    print "Dates don't match";
}