PHP Velho Oeste 2024

QuickHashIntHash::exists

(PECL quickhash >= Unknown)

QuickHashIntHash::existsThis method checks whether a key is part of the hash

Descripción

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

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

Parámetros

key

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

Valores devueltos

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

Ejemplos

Ejemplo #1 QuickHashIntHash::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 hash: ", microtime( true ), "\n";
$hash = new QuickHashIntHash( 100000 );
echo
"Adding elements: ", microtime( true ), "\n";
foreach(
$existingEntries as $key )
{
$hash->add( $key, 56 );
}

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

El resultado del ejemplo sería algo similar a:

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

add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top