PHP Manual
QuickHashStringIntHash
This method updates an entry in the hash with a new value

QuickHashStringIntHash::update

(No version information available, might only be in Git)

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

说明

public 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.

参数

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

返回值

TRUE when the entry was found and updated, and FALSE if the entry was not part of the hash already.

范例

Example #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";
?>

以上例程的输出类似于：

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

php apcu 函数 updates an old value with a new value php quickhashinthash this method adds a new entry to the hash php quickhashinthash this method deletes am entry from the hash php quickhashinthash this method retrieves a value from the hash by its key php quickhashinthash this method updates an entry in the hash with a new value or adds a new one if the entry doesn t exist php quickhashinthash this method updates an entry in the hash with a new value php quickhashintstringhash this method adds a new entry to the hash php quickhashintstringhash this method deletes am entry from the hash php quickhashintstringhash this method retrieves a value from the hash by its key php quickhashintstringhash this method updates an entry in the hash with a new value or adds a new one if the entry doesn t exist php quickhashintstringhash this method updates an entry in the hash with a new value php quickhashstringinthash this method adds a new entry to the hash php quickhashstringinthash this method deletes am entry from the hash php quickhashstringinthash this method checks whether a key is part of the hash php quickhashstringinthash this method retrieves a value from the hash by its key php quickhashstringinthash this factory method creates a hash from a file php quickhashstringinthash this factory method creates a hash from a string php quickhashstringinthash this method updates an entry in the hash with a new value or adds a new one if the entry doesn t exist php quickhashstringinthash this method updates an entry in the hash with a new value php weakmap updates the map with a new key value pair