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    QuickHashIntSet::exists

    (PECL quickhash >= Unknown)

    QuickHashIntSet::exists — This method checks whether a key is part of the set

    Açıklama

    public QuickHashIntSet::exists(int $key): bool

    This method checks whether an entry with the provided key exists in the set.

    Bağımsız Değişkenler

    key

    The key of the entry to check for whether it exists in the set.

    Dönen Değerler

    Returns true when the entry was found, or false when the entry is not found.

    Örnekler

    Örnek 1 QuickHashIntSet::exists() example

    <?php
    //generate 200000 elements
    $array = range( 0, 199999 );
    $existingEntries = array_rand( array_flip( $array ), 180000 );
    $testForEntries = array_rand( array_flip( $array ), 1000 );
    $foundCount = 0;

    echo     "Creating set: ", microtime( true ), "\n";
    $set = new QuickHashIntSet( 100000 );
    echo     "Adding elements: ", microtime( true ), "\n";
    foreach(     $existingEntries as $key )
    {
    $set->add( $key );
    }

    echo     "Doing 1000 tests: ", microtime( true ), "\n";
    foreach(     $testForEntries as $key )
    {
    $foundCount += $set->exists( $key );
    }
    echo     "Done, $foundCount found: ", microtime( true ), "\n";
    ?>

    Yukarıdaki örnek şuna benzer bir çıktı üretir:

    Creating set: 1263588703.0748
Adding elements: 1263588703.0757
Doing 1000 tests: 1263588703.7851
Done, 898 found: 1263588703.7897

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