QuickHashIntSet::loadFromFile
(PECL quickhash >= Unknown)
QuickHashIntSet::loadFromFile — This factory method creates a set from a file
Описание
$filename
[, int $size
[, int $options
]] )This factory method creates a new set from a definition file on disk. The file format consists of 32 bit signed integers packed together in the Endianness that the system that the code runs on uses.
Список параметров
-
filename -
The filename of the file to read the set from.
-
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 4 to 4194304.
-
options -
The same options that the class' constructor takes; except that the size option is ignored. It is automatically calculated to be the same as the number of entries in the set, rounded up to the nearest power of two with a maximum limit of 4194304.
Возвращаемые значения
Returns a new QuickHashIntSet.
Примеры
Пример #1 QuickHashIntSet::loadFromFile() example
<?php
$file = dirname( __FILE__ ) . "/simple.set";
$set = QuickHashIntSet::loadFromFile(
$file,
QuickHashIntSet::DO_NOT_USE_ZEND_ALLOC
);
foreach( range( 0, 0x0f ) as $key )
{
printf( "Key %3d (%2x) is %s\n",
$key, $key,
$set->exists( $key ) ? 'set' : 'unset'
);
}
?>
Результатом выполнения данного примера будет что-то подобное:
Key 0 ( 0) is unset Key 1 ( 1) is set Key 2 ( 2) is set Key 3 ( 3) is set Key 4 ( 4) is unset Key 5 ( 5) is set Key 6 ( 6) is unset Key 7 ( 7) is set Key 8 ( 8) is unset Key 9 ( 9) is unset Key 10 ( a) is unset Key 11 ( b) is set Key 12 ( c) is unset Key 13 ( d) is set Key 14 ( e) is unset Key 15 ( f) is unset
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- Quickhash
- Функция QuickHashIntSet::add() - This method adds a new entry to the set
- Функция QuickHashIntSet::__construct() - Creates a new QuickHashIntSet object
- Функция QuickHashIntSet::delete() - This method deletes an entry from the set
- Функция QuickHashIntSet::exists() - This method checks whether a key is part of the set
- Функция QuickHashIntSet::getSize() - Returns the number of elements in the set
- Функция QuickHashIntSet::loadFromFile() - This factory method creates a set from a file
- Функция QuickHashIntSet::loadFromString() - This factory method creates a set from a string
- Функция QuickHashIntSet::saveToFile() - This method stores an in-memory set to disk
- Функция QuickHashIntSet::saveToString() - This method returns a serialized version of the set
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