strval - PHP code example

The php Function Strval and Other String Functions in PHP

The php function strval is a way to get the string value of a variable. It can be used on any scalar type or object that implements the __toString() method. It cannot be used on arrays or objects that do not implement this method, because it does not perform any formatting on the returned value.

There are a number of other string functions that can be used in PHP. These include the chr() function, which returns the character corresponding to the ASCII code passed as its parameter. The ord() function is useful for determining the ASCII value of any character. The rtrim() function is used to remove white space from the right end of a string. This can be helpful for making a string more readable.

Other string functions in PHP include the trim() function, which removes spaces from the left end of a string. The tr() function is similar, but it trims the characters from both ends of a string. The ssplit() function splits a string into chunks of a specified length. This can be useful for creating a list of the items in a string or for separating the items in an associative array.

The crc32() function is a string function in PHP that generates a 32-bit cyclic redundancy checksum of a string. This can be useful in data verification and error detection processes. The crypt() function is another string function in PHP that can be used to generate hashed passwords. The passwords are then encrypted using a secret key that is only known to the administrator of the website.

strval example

      // outside of this conditional.       if ($element_access->isAllowed()) {
        // Get and generate the URL of the link's target. This can create         // cacheability metadata also.         $url = $element->link->getUrlObject();
        $generated_url = $url->toString(TRUE);
        $cacheability = $cacheability->addCacheableDependency($generated_url);
        // Take the hierarchy value for the current element and append it         // to the link element parent's hierarchy value. See this method's         // docblock for more context on why this value is the way it is.         $hierarchy = $hierarchy_ancestors;
        array_push($hierarchy, strval($index));
        $link_options = $element->link->getOptions();
        $link_attributes = ($link_options['attributes'] ?? []);
        $link_rel = $link_attributes['rel'] ?? 'item';
        // Encode the link.         $link = [
          'href' => $generated_url->getGeneratedUrl(),
          // @todo should this use the "title*" key if it is internationalized?           // Follow up issue:           // https://www.drupal.org/project/decoupled_menus/issues/3280735           'title' => $element->link->getTitle(),
          'hierarchy' => $hierarchy,
        ];

    protected function _renderOrder($sql)
    {
        if ($this->_parts[self::ORDER]) {
            $order = [];
            foreach ($this->_parts[self::ORDER] as $term) {
                if (is_array($term)) {
                    if (is_numeric($term[0]) && strval(intval($term[0])) == $term[0]) {
                        $order[] = (int) trim($term[0]) . ' ' . $term[1];
                    } else {
                        $order[] = $this->_adapter->quoteIdentifier($term[0], true) . ' ' . $term[1];
                    }
                } elseif (is_numeric($term) && strval(intval($term)) == $term) {
                    $order[] = (int) trim($term);
                } else {
                    $order[] = $this->_adapter->quoteIdentifier($term, true);
                }
            }
            $sql .= ' ' . self::SQL_ORDER_BY . ' ' . implode(', ', $order);
        }

if (is_int($value)) {
            return true;
        }

        $this->_setValue($value);
        if ($this->_locale === null) {
            $locale        = localeconv();
            $valueFiltered = str_replace($locale['decimal_point'], '.', $value);
            $valueFiltered = str_replace($locale['thousands_sep'], '', $valueFiltered);

            if (strval(intval($valueFiltered)) != $valueFiltered) {
                $this->_error(self::NOT_INT);
                return false;
            }

        } else {
            try {
                if (!Zend_Locale_Format::isInteger($value, array('locale' => $this->_locale))) {
                    $this->_error(self::NOT_INT);
                    return false;
                }
            } catch (Zend_Locale_Exception $e) {

/** * @internal */
  protected function assertResult(): void {
    $assert = [];
    $expected = func_get_args();
    if ($expected && is_array($expected[0])) {
      $expected = $expected[0];
    }
    foreach ($expected as $binary) {
      $assert[$binary] = strval($binary);
    }
    $this->assertSame($assert, $this->queryResults);
  }

  /** * @internal */
  protected function assertRevisionResult(array $keys, array $expected): void {
    $assert = [];
    foreach ($expected as $key => $binary) {
      $assert[$keys[$key]] = strval($binary);
    }

if (empty($this->configuration['delimiter'])) {
      throw new MigrateException('delimiter is empty');
    }

    $strict = array_key_exists('strict', $this->configuration) ? $this->configuration['strict'] : TRUE;
    if ($strict && !is_string($value)) {
      throw new MigrateException(sprintf('%s is not a string', var_export($value, TRUE)));
    }
    elseif (!$strict) {
      // Check if the incoming value can cast to a string.       $original = $value;
      if (!is_string($original) && ($original != ($value = @strval($value)))) {
        throw new MigrateException(sprintf('%s cannot be casted to a string', var_export($original, TRUE)));
      }
      // Empty strings should be exploded to empty arrays.       if ($value === '') {
        return [];
      }
    }

    $limit = $this->configuration['limit'] ?? PHP_INT_MAX;

    return explode($this->configuration['delimiter'], $value, $limit);
  }

$this->assertMenuLink([
      'children' => [],
      'parents' => [$item3->getPluginId(), $item2->getPluginId(), $item5->getPluginId(), $item4->getPluginId()],
      // See above.       'langcode' => 'en',
    ], $item3->getPluginId());

    // Add 102 menu links with increasing weights, then make sure the last-added     // item's weight doesn't get changed because of the old hardcoded delta=50.     $items = [];
    for ($i = -50; $i <= 51; $i++) {
      $items[$i] = $this->addMenuLink('', '/node/' . $node1->id(), $menu_name, TRUE, strval($i));
    }
    $this->assertMenuLink(['weight' => '51'], $items[51]->getPluginId());

    // Disable a link and then re-enable the link via the overview form.     $this->disableMenuLink($item1);
    $edit = [];
    $edit['links[menu_plugin_id:' . $item1->getPluginId() . '][enabled]'] = TRUE;
    $this->drupalGet('admin/structure/menu/manage/' . $item1->getMenuName());
    $this->submitForm($edit, 'Save');

    // Mark item2, item4 and item5 as expanded.

private array $managedCursors = [];

    /** * Creates a new map. * * @param TValue[] $elements The elements to insert initially */
    public function __construct(array $elements = [])
    {
        $this->elements = $elements;
        // the explicit string type-cast is necessary as digit-only keys would be returned as integers otherwise         $this->orderedKeys = array_map(strval(...), array_keys($elements));
    }

    public function offsetExists(mixed $key): bool
    {
        return isset($this->elements[$key]);
    }

    public function offsetGet(mixed $key): mixed
    {
        if (!isset($this->elements[$key])) {
            throw new \OutOfBoundsException(sprintf('The offset "%s" does not exist.', $key));
        }

    public function RFCNumber()
    {
        return $this->rfcNumber;
    }

    /** * @return string */
    public function __toString(): string
    {
        return $this->message() . " rfc: " .  $this->rfcNumber . "internal code: " . strval(static::CODE);
    }
}