This factory method creates a hash from a string


(PECL quickhash >= Unknown)

QuickHashIntHash::loadFromStringThis factory method creates a hash from a string

Описание

public static QuickHashIntHash QuickHashIntHash::loadFromString ( string $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_contentsdirname__FILE__ ) . "/simple.hash" );
$hash QuickHashIntHash::loadFromString(
    
$contents,
    
QuickHashIntHash::DO_NOT_USE_ZEND_ALLOC
);
foreach( 
range00x0f ) 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