QuickHashStringIntHash::update

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QuickHashStringIntHash::update — This method updates an entry in the hash with a new value

説明

public function QuickHashStringIntHash::update(string $key, int $value): bool

This method updates an entry with a new value, and returns whether the entry was update. If there are duplicate keys, only the first found element will get an updated value. Use QuickHashStringIntHash::CHECK_FOR_DUPES during hash creation to prevent duplicate keys from being part of the hash.

パラメータ

key: The key of the entry to update.
value: The new value for the entry. If a non-string is passed, it will be converted to a string automatically if possible.

戻り値

true when the entry was found and updated, and false if the entry was not part of the hash already.

例

例1 QuickHashStringIntHash::update() example

<?php
$hash = new QuickHashStringIntHash( 1024 );

$hash->add( 'six', 314159265 );
$hash->add( "a lot", 314159265 );

echo $hash->get( 'six' ), "\n";
echo $hash->get( 'a lot' ), "\n";

var_dump( $hash->update( 'a lot', 314159266 ) );
var_dump( $hash->update( "a lot plus one", 314159999 ) );

echo $hash->get( 'six' ), "\n";
echo $hash->get( 'a lot' ), "\n";
?>

上の例の出力は、たとえば以下のようになります。

314159265
314159265
bool(true)
bool(false)
314159265
314159266

関連キーワード:

hash entry QuickHashStringIntHash update method updates duplicate keys found part dump QuickHashIntStringHash information available whether there first element during creation prevent passed converted automatically already