(PECL quickhash >= Unknown)
QuickHashIntHash::delete — This method deletes an entry from the hash
This method deletes an entry from the hash, and returns whether the entry was deleted or not. Associated memory structures will not be freed immediately, but rather when the hash itself is freed.
Elements can not be deleted when the hash is used in an iterator. The
method will not throw an exception, but simply return false like would
happen with any other deletion failure.
keyThe key of the entry to delete.
示例 #1 QuickHashIntHash::delete() example
<?php
$hash = new QuickHashIntHash( 1024 );
var_dump( $hash->exists( 4 ) );
var_dump( $hash->add( 4, 5 ) );
var_dump( $hash->delete( 4 ) );
var_dump( $hash->exists( 4 ) );
var_dump( $hash->delete( 4 ) );
?>以上示例的输出类似于：
bool(false) bool(true) bool(true) bool(false) bool(false)