This factory method creates a set from a file


(PECL quickhash >= Unknown)

QuickHashIntSet::loadFromFileThis factory method creates a set from a file

Описание

public static QuickHashIntSet QuickHashIntSet::loadFromFile ( string $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( 
range00x0f ) 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