delete - PHP code example

PHP Function Delete

In PHP, there are multiple ways to delete files from a directory. One way is to use the unlink() function. This function takes a path to the file that you want to delete and the context resource. It then removes that file from the directory and returns true if it succeeds or false if it doesn’t.

Another way to delete data is by using the SQL DELETE statement. This is typically used in conjugation with a WHERE clause to delete only certain records.

Another common way to delete data is by using the truncate table SQL statement. This is often used in conjugation with a WHERE LIMIT clause to delete only certain records.

Lastly, you can also delete data by utilizing the SELECT statements. This is typically done in conjunction with the UPDATE statements to update data.

For example, if you’re updating an order to update an item’s quantity, you would use the SELECT statement to change the quantity of the item and then use the UPDATE statement to save the new quantity to the database.

Another common error that developers make is not properly handling non-ASCII strings. This can lead to gnarly heisenbugs in your code. Fortunately, PHP 7 is going to be fully Unicode-aware, and it’s highly recommended that you use the proper tools (e.g., strlen($_POST['name'])) to avoid these mistakes. It’s also a good idea to follow PSR, especially on larger teams. This will help to ensure that all developers are familiar with your coding standards and can be productive quickly.

delete example

if (empty($id)) {
            return ['success' => false, 'error' => 'The id parameter contains no value.'];
        }

        $model = $this->getManager()->find($this->model, $id);

        if (!($model instanceof $this->model)) {
            return ['success' => false, 'error' => 'The passed id parameter exists no more.'];
        }

        try {
            $this->addressService->delete($model);
        } catch (\Exception $ex) {
            return ['success' => false, 'error' => $ex->getMessage()];
        }

        return ['success' => true];
    }

    /** * {@inheritdoc} */
    protected function getListQuery()
    {

if ($entity) {
            $this->entityManager->remove($entity);
            $this->entityManager->flush($entity);
        }

        if (!$updateDependingTables) {
            return;
        }

        $dependingTables = $this->tableMapping->getDependingTables($table);
        foreach ($dependingTables as $dependingTable) {
            $this->delete($dependingTable, $column);
        }
    }

    /** * {@inheritdoc} */
    public function update(
        $table,
        $columnName,
        $unifiedType,
        array $data = [],

$this->drupalLogin($this->adminUser);

    // Add a new block of this type.     $block = $this->createBlockContent(FALSE, 'foo');
    // Attempt to delete the block type, which should not be allowed.     $this->drupalGet('admin/structure/block-content/manage/' . $type->id() . '/delete');
    $this->assertSession()->pageTextContains($type->label() . ' is used by 1 content block on your site. You can not remove this block type until you have removed all of the ' . $type->label() . ' blocks.');
    $this->assertSession()->pageTextNotContains('This action cannot be undone.');

    // Delete the block.     $block->delete();
    // Attempt to delete the block type, which should now be allowed.     $this->drupalGet('admin/structure/block-content/manage/' . $type->id() . '/delete');
    $this->assertSession()->pageTextContains('Are you sure you want to delete the block type ' . $type->id() . '?');
    $this->assertSession()->pageTextContains('This action cannot be undone.');
  }

  /** * Tests that redirects work as expected when multiple block types exist. */
  public function testsBlockContentAddTypes() {
    // Now create an initial block-type.

    }

    private function addTestConditions(): void
    {
        $this->connection->insert('rule', $this->testRule);
        $this->connection->insert('rule_condition', $this->testCondition);
    }

    private function removeTestConditions(): void
    {
        $this->connection->delete('rule_condition', [
            'id' => $this->testCondition['id'],
        ]);
        $this->connection->delete('rule', [
            'id' => $this->testRule['id'],
        ]);
    }
}

if (! $data = $this->cache->get($key)) {
            return false;
        }

        Factories::setComponentInstances($component, $data);

        return true;
    }

    public function delete(string $component): void
    {
        $this->cache->delete($this->getCacheKey($component));
    }
}

    }

    private function deleteOldScripts(ScriptCollection $toBeRemoved, Context $context): void
    {
        /** @var array<string> $ids */
        $ids = $toBeRemoved->getIds();

        if (!empty($ids)) {
            $ids = array_map(static fn (string $id): array => ['id' => $id], array_values($ids));

            $this->scriptRepository->delete($ids, $context);
        }
    }

    private function getAppWithExistingScripts(string $appId, Context $context): AppEntity
    {
        $criteria = new Criteria([$appId]);
        $criteria->addAssociation('scripts');

        /** @var AppEntity $app */
        $app = $this->appRepository->search($criteria, $context)->first();

    }
    return $current_words;
  }

  /** * {@inheritdoc} */
  public function clear($type = NULL, $sid = NULL, $langcode = NULL) {

    try {
      $query_index = $this->connection->delete('search_index');
      $query_dataset = $this->connection->delete('search_dataset');
      if ($type) {
        $query_index->condition('type', $type);
        $query_dataset->condition('type', $type);
        if ($sid) {
          $query_index->condition('sid', $sid);
          $query_dataset->condition('sid', $sid);
          if ($langcode) {
            $query_index->condition('langcode', $langcode);
            $query_dataset->condition('langcode', $langcode);
          }
        }

$alias_manager->cacheClear($path_alias->getPath())->shouldBeCalledTimes(1);
    $alias_manager->cacheClear($new_source)->shouldBeCalledTimes(1);
    \Drupal::getContainer()->set('path_alias.manager', $alias_manager->reveal());
    $path_alias->setPath($new_source);
    $path_alias->save();

    // Check \Drupal\path_alias\Entity\PathAlias::postDelete().     $alias_manager = $this->prophesize(AliasManagerInterface::class);
    $alias_manager->cacheClear(Argument::any())->shouldBeCalledTimes(1);
    $alias_manager->cacheClear($new_source)->shouldBeCalledTimes(1);
    \Drupal::getContainer()->set('path_alias.manager', $alias_manager->reveal());
    $path_alias->delete();
  }

}

$query->setParameter(':names', $names, Connection::PARAM_STR_ARRAY);
        $query->setParameter(':pluginId', $plugin->getId());

        $ids = $query->execute()->fetchAll(PDO::FETCH_COLUMN);

        if (empty($ids)) {
            return;
        }

        // elements         $query = $this->em->getConnection()->createQueryBuilder();
        $query->delete('s_core_config_elements');
        $query->where('id IN (:ids)');
        $query->setParameter(':ids', $ids, Connection::PARAM_INT_ARRAY);
        $query->execute();

        // saved values         $query = $this->em->getConnection()->createQueryBuilder();
        $query->delete('s_core_config_values');
        $query->where('element_id IN (:ids)');
        $query->setParameter(':ids', $ids, Connection::PARAM_INT_ARRAY);
        $query->execute();

$this->sectionStorage = $section_storage;
    // Mark this as an administrative page for JavaScript ("Back to site" link).     $form['#attached']['drupalSettings']['path']['currentPathIsAdmin'] = TRUE;
    return parent::buildForm($form, $form_state);
  }

  /** * {@inheritdoc} */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->sectionStorage->disableLayoutBuilder()->save();
    $this->layoutTempstoreRepository->delete($this->sectionStorage);

    $this->messenger()->addMessage($this->t('Layout Builder has been disabled.'));
    $form_state->setRedirectUrl($this->getCancelUrl());
  }

}

if ($is_changed) {
        // Only update or insert if we have a value to use.         $target = $existing_translation_objects[$lid] ?? $this->localeStorage->createTranslation(['lid' => $lid, 'language' => $langcode]);
        $target->setPlurals($new_translation['translations'])
          ->setCustomized()
          ->save();
        $updated[] = $target->getId();
      }
      if (empty($new_translation_string) && isset($existing_translation_objects[$lid])) {
        // Empty new translation entered: remove existing entry from database.         $existing_translation_objects[$lid]->delete();
        $updated[] = $lid;
      }
    }

    $this->messenger()->addStatus($this->t('The strings have been saved.'));

    // Keep the user on the current pager page.     $page = $this->getRequest()->query->get('page');
    if (isset($page)) {
      $form_state->setRedirect(
        'locale.translate_page',
        [],

$this->deleteOldActions($existingActionButtons, $context);
    }

    private function deleteOldActions(ActionButtonCollection $toBeRemoved, Context $context): void
    {
        /** @var array<string> $ids */
        $ids = $toBeRemoved->getIds();

        if (!empty($ids)) {
            $ids = array_map(static fn (string $id): array => ['id' => $id], array_values($ids));

            $this->actionButtonRepository->delete($ids, $context);
        }
    }

    private function getExistingActionButtons(string $appId, Context $context): ActionButtonCollection
    {
        $criteria = new Criteria();
        $criteria->addFilter(new EqualsFilter('appId', $appId));

        /** @var ActionButtonCollection $actionButtons */
        $actionButtons = $this->actionButtonRepository->search($criteria, $context)->getEntities();

$token,
            $jwtToken->claims()->get('pmi'),
            $jwtToken->claims()->get('sub'),
            $jwtToken->claims()->get('ful'),
            $expires->getTimestamp(),
            $errorUrl
        );
    }

    public function invalidateToken(string $token): bool
    {
        $this->delete($token);

        return false;
    }

    private function write(string $token, \DateTimeImmutable $expires): void
    {
        $this->connection->insert('payment_token', [
            'token' => self::normalize($token),
            'expires' => $expires->format(Defaults::STORAGE_DATE_TIME_FORMAT),
        ]);
    }

  public function set(SectionStorageInterface $section_storage) {
    $key = $this->getKey($section_storage);
    $this->getTempstore($section_storage)->set($key, ['section_storage' => $section_storage]);
  }

  /** * {@inheritdoc} */
  public function delete(SectionStorageInterface $section_storage) {
    $key = $this->getKey($section_storage);
    $this->getTempstore($section_storage)->delete($key);
  }

  /** * Gets the shared tempstore. * * @param \Drupal\layout_builder\SectionStorageInterface $section_storage * The section storage. * * @return \Drupal\Core\TempStore\SharedTempStore * The tempstore. */

  /** * {@inheritdoc} */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $field_storage = $this->entity->getFieldStorageDefinition();
    $bundles = $this->entityTypeBundleInfo->getBundleInfo($this->entity->getTargetEntityTypeId());
    $bundle_label = $bundles[$this->entity->getTargetBundle()]['label'];

    if ($field_storage && !$field_storage->isLocked()) {
      $this->entity->delete();
      $this->messenger()->addStatus($this->t('The field %field has been deleted from the %type content type.', ['%field' => $this->entity->label(), '%type' => $bundle_label]));
    }
    else {
      $this->messenger()->addError($this->t('There was a problem removing the %field from the %type content type.', ['%field' => $this->entity->label(), '%type' => $bundle_label]));
    }

    $form_state->setRedirectUrl($this->getCancelUrl());

    // Fields are purged on cron. However field module prevents disabling modules     // when field types they provided are used in a field until it is fully     // purged. In the case that a field has minimal or no content, a single call