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QuickHashIntSet::add

(PECL quickhash >= Unknown)

QuickHashIntSet::add — This method adds a new entry to the set

Beschreibung

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

This method adds a new entry to the set, and returns whether the entry was added. Entries are by default always added unless QuickHashIntSet::CHECK_FOR_DUPES has been passed when the set was created.

Parameter-Liste

key

The key of the entry to add.

Rückgabewerte

true when the entry was added, and false if the entry was not added.

Beispiele

Beispiel #1 QuickHashIntSet::add() example

<?php
echo "without dupe checking\n";
$set = new QuickHashIntSet( 1024 );
var_dump( $set->exists( 4 ) );
var_dump( $set->add( 4 ) );
var_dump( $set->exists( 4 ) );
var_dump( $set->add( 4 ) );

echo "\nwith dupe checking\n";
$set = new QuickHashIntSet( 1024, QuickHashIntSet::CHECK_FOR_DUPES );
var_dump( $set->exists( 4 ) );
var_dump( $set->add( 4 ) );
var_dump( $set->exists( 4 ) );
var_dump( $set->add( 4 ) );
?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

without dupe checking
bool(false)
bool(true)
bool(true)
bool(true)

with dupe checking
bool(false)
bool(true)
bool(true)
bool(false)