remove() публичный Метод

Usually this only affects one entry but if - for what reason ever - old entries for the identifier still exist, they are removed as well.
public remove ( string $entryIdentifier ) : boolean
$entryIdentifier string Specifies the cache entry to remove
Результат boolean TRUE if (at least) an entry could be removed or FALSE if no entry was found
Документация по классу RedisBackend
Пример #1
0
 /**
  * @test
  */
 public function removeRemovesEntryFromCache()
 {
     for ($i = 0; $i < 10; $i++) {
         $this->backend->set('entry_' . $i, 'foo', ['tag1']);
     }
     $this->assertCount(10, $this->backend->findIdentifiersByTag('tag1'));
     $this->assertEquals('foo', $this->backend->get('entry_1'));
     $actualEntries = [];
     foreach ($this->backend as $key => $value) {
         $actualEntries[] = $key;
     }
     $this->assertCount(10, $actualEntries);
     $this->backend->remove('entry_3');
     $this->assertCount(9, $this->backend->findIdentifiersByTag('tag1'));
     $this->assertFalse($this->backend->get('entry_3'));
     $actualEntries = [];
     foreach ($this->backend as $key => $value) {
         $actualEntries[] = $key;
     }
     $this->assertCount(9, $actualEntries);
 }