QuickHashIntSet
PHP Manual

QuickHashIntSet::exists

(PECL quickhash >= Unknown)

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

Beschreibung

public bool QuickHashIntSet::exists ( int $key )

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

Parameter-Liste

key

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

Rückgabewerte

Returns TRUE when the entry was found, or FALSE when the entry is not found.

Beispiele

Beispiel #1 QuickHashIntSet::exists() example

<?php
//generate 200000 elements
$array range0199999 );
$existingEntries array_randarray_flip$array ), 180000 );
$testForEntries array_randarray_flip$array ), 1000 );
$foundCount 0;

echo 
"Creating set: "microtimetrue ), "\n";
$set = new QuickHashIntSet100000 );
echo 
"Adding elements: "microtimetrue ), "\n";
foreach( 
$existingEntries as $key )
{
     
$set->add$key );
}

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

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

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


QuickHashIntSet
PHP Manual