GoLang QuickHashIntHash::__construct

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PHP QuickHashIntHash::__construct

PHP original manual for QuickHashIntHash::__construct [ show | php.net ]

QuickHashIntHash::__construct

(PECL quickhash >= Unknown)

QuickHashIntHash::__construct — Creates a new QuickHashIntHash object

Description

public QuickHashIntHash::__construct ( int $size [, int $options ] )

This constructor creates a new QuickHashIntHash. The size is the amount of bucket lists to create. The more lists there are, the less collisions you will have. Options are also supported.

Parameters

size: The amount of bucket lists to configure. The number you pass in will be automatically rounded up to the next power of two. It is also automatically limited from 64 to 4194304.
options: The options that you can pass in are: QuickHashIntHash::CHECK_FOR_DUPES, which makes sure no duplicate entries are added to the hash; QuickHashIntHash::DO_NOT_USE_ZEND_ALLOC to not use PHP's internal memory manager as well as one of QuickHashIntHash::HASHER_NO_HASH, QuickHashIntHash::HASHER_JENKINS1 or QuickHashIntHash::HASHER_JENKINS2. These last three configure which hashing algorithm to use. All options can be combined using bitmasks.

Return Values

Returns a new QuickHashIntHash object.

Examples

Example #1 QuickHashIntHash::__construct() example


<?php
var_dump( new QuickHashIntHash( 1024 ) );
var_dump( new QuickHashIntHash( 1024, QuickHashIntHash::CHECK_FOR_DUPES ) );
var_dump(
    new QuickHashIntHash(
        1024,
        QuickHashIntHash::DO_NOT_USE_ZEND_ALLOC | QuickHashIntHash::HASHER_JENKINS2 
    )
);
?>

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