QuickHashIntHash::loadFromString
(PECL quickhash >= Unknown)
QuickHashIntHash::loadFromString — This factory method creates a hash from a string
Описание
$contents
[, int $options
] )This factory method creates a new hash from a definition in a string. The file format consists of 32 bit signed integers packed together in the Endianness that the system that the code runs on uses. For each element there are two 32 bit signed integers stored. The first of each element is the key, and the second is the value belonging to the key.
Список параметров
-
contents -
The string containing a serialized format of the hash.
-
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 hash, rounded up to the nearest power of two with a maximum limit of 4194304.
Возвращаемые значения
Returns a new QuickHashIntHash.
Примеры
Пример #1 QuickHashIntHash::loadFromString() example
<?php
$contents = file_get_contents( dirname( __FILE__ ) . "/simple.hash" );
$hash = QuickHashIntHash::loadFromString(
$contents,
QuickHashIntHash::DO_NOT_USE_ZEND_ALLOC
);
foreach( range( 0, 0x0f ) as $key )
{
printf( "Key %3d (%2x) is %s\n",
$key, $key,
$hash->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
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Расширения, относящиеся к переменным и типам
- Quickhash
- Функция QuickHashIntHash::add() - This method adds a new entry to the hash
- Функция QuickHashIntHash::__construct() - Creates a new QuickHashIntHash object
- Функция QuickHashIntHash::delete() - This method deletes am entry from the hash
- Функция QuickHashIntHash::exists() - This method checks whether a key is part of the hash
- Функция QuickHashIntHash::get() - This method retrieves a value from the hash by its key
- Функция QuickHashIntHash::getSize() - Returns the number of elements in the hash
- Функция QuickHashIntHash::loadFromFile() - This factory method creates a hash from a file
- Функция QuickHashIntHash::loadFromString() - This factory method creates a hash from a string
- Функция QuickHashIntHash::saveToFile() - This method stores an in-memory hash to disk
- Функция QuickHashIntHash::saveToString() - This method returns a serialized version of the hash
- QuickHashIntHash::set
- Функция QuickHashIntHash::update() - This method updates an entry in the hash with a new value
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