(PECL quickhash >= Unknown)
QuickHashIntSet::delete — This method deletes an entry from the set
This method deletes an entry from the set, and returns whether the entry was deleted or not. Associated memory structures will not be freed immediately, but rather when the set itself is freed.
keyThe key of the entry to delete.
示例 #1 QuickHashIntSet::delete() example
<?php
$set = new QuickHashIntSet( 1024 );
var_dump( $set->exists( 4 ) );
var_dump( $set->add( 4 ) );
var_dump( $set->delete( 4 ) );
var_dump( $set->exists( 4 ) );
var_dump( $set->delete( 4 ) );
?>以上示例的输出类似于：
bool(false) bool(true) bool(true) bool(false) bool(false)