QuickHashIntSet::exists

(PECL quickhash >= Unknown)

QuickHashIntSet::existsThis method checks whether a key is part of the set

Descripción

public QuickHashIntSet::exists(int $key): bool

This method checks whether an entry with the provided key exists in the set.

Parámetros

key

The key of the entry to check for whether it exists in the set.

Valores devueltos

Returns true when the entry was found, or false when the entry is not found.

Ejemplos

Ejemplo #1 QuickHashIntSet::exists() example

<?php
//generate 200000 elements
$array = range( 0, 199999 );
$existingEntries = array_rand( array_flip( $array ), 180000 );
$testForEntries = array_rand( array_flip( $array ), 1000 );
$foundCount = 0;

echo
"Creating set: ", microtime( true ), "\n";
$set = new QuickHashIntSet( 100000 );
echo
"Adding elements: ", microtime( true ), "\n";
foreach(
$existingEntries as $key )
{
$set->add( $key );
}

echo
"Doing 1000 tests: ", microtime( true ), "\n";
foreach(
$testForEntries as $key )
{
$foundCount += $set->exists( $key );
}
echo
"Done, $foundCount found: ", microtime( true ), "\n";
?>

El resultado del ejemplo sería algo similar a:

Creating set: 1263588703.0748
Adding elements: 1263588703.0757
Doing 1000 tests: 1263588703.7851
Done, 898 found: 1263588703.7897

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