(PECL quickhash >= Unknown)
QuickHashIntSet::delete — This method deletes an entry from the set
$key
) : boolThis 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.
TRUE when the entry was deleted, and FALSE if the entry was not deleted.
Example #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 ) );
?>
以上例程的输出类似于：
bool(false) bool(true) bool(true) bool(false) bool(false)