QuickHashIntHash::exists

    (PECL quickhash >= Unknown)

    QuickHashIntHash::exists — This method checks whether a key is part of the hash

    Açıklama

    publicQuickHashIntHash::exists(int$key): bool

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

    Bağımsız Değişkenler

    key

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

    Dönen Değerler

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

    Örnekler

    Örnek 1 QuickHashIntHash::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 hash: ", microtime( true ), "\n";
    $hash = new QuickHashIntHash( 100000 );
    echo     "Adding elements: ", microtime( true ), "\n";
    foreach(     $existingEntries as $key )
    {
    $hash->add( $key, 56 );
    }

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

    Yukarıdaki örnek şuna benzer bir çıktı üretir:

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