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QuickHashIntSet::add

(PECL quickhash >= Unknown)

QuickHashIntSet::addThis method adds a new entry to the set

説明

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.

パラメータ

key

The key of the entry to add.

戻り値

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

例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 ) );
?>

上の例の出力は、 たとえば以下のようになります。

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

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

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