(PECL quickhash >= Unknown)
QuickHashIntHash::exists — This method checks whether a key is part of the hash
public QuickHashIntHash::exists ( int $key ) : bool
This method checks whether an entry with the provided key exists in the hash.
key
The key of the entry to check for whether it exists in the hash.
Returns true
when the entry was found, or false
when the entry is not found.
Example #1 QuickHashIntHash::exists() example
<?php //generate 200000 elements $array = range( 0, 199999 ); $existingEntries = array_rand( array_flip( $array ), 180000 ); $testForEntries = array_rand( array_flip( $array ), 1000 ); $foundCount = 0; echo "Creating hash: ", microtime( true ), "\n"; $hash = new QuickHashIntHash( 100000 ); echo "Adding elements: ", microtime( true ), "\n"; foreach( $existingEntries as $key ) { $hash->add( $key, 56 ); } echo "Doing 1000 tests: ", microtime( true ), "\n"; foreach( $testForEntries as $key ) { $foundCount += $hash->exists( $key ); } echo "Done, $foundCount found: ", microtime( true ), "\n"; ?>
The above example will output something similar to:
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https://www.php.net/manual/en/quickhashinthash.exists.php