Проверка на наличие исключений
@param string $name Название (ключ) исключения
@return bool
481747
function isExist($name = null)
    {
        if (isset($name)){
            return isset($this->children[$name]);
        }
        return !$this->is_temp;
    }
926376
protected function mkdir($name = '')
    {
        $result = true;
        $umask = umask(0000);
        # Проверка и создание корневой директории данных
        if (!is_dir($this->dirData)) $result = mkdir($this->dirData);
        if ($result)
        {
            # Удаляем директории вида "." и "..", а также финальный и лидирующий слэши
            $name = preg_replace(array('!\.{1,2}/!', '!^/!', '!/$!'), '', $name);
            if ($name)
            {
                $name = explode('/', $name);
                $root = substr($this->dirData, 0, -1);
                for($i=0; $i<count($name); $i++) if ($name[$i]) {
                    $root .= '/'.$name[$i];
                    if (!is_dir($root)) $result = mkdir($root);
                    if (!$result) break;
                }
            }
        }
        umask($umask);
        return $result;
    }
111828
public function hasField( $name )
	{
		$name	= strtolower( $name );
		if( isset( $this->fields[$name] ) )
			return (bool) count( $this->fields[$name] );
	}
455923
public function has($name): bool
    {
        $this->readTimes++;

        $key = $this->getCacheKey($name);

        return wincache_ucache_exists($key);
    }
374004
public function exists($name)
    {
        $name = preg_replace('#/{2,}#', '/', strtr($name, '\\', '/'));
        $exists = parent::exists($name);
        $readable = false;
        if (true === $exists) {
            $readable = is_readable($this->cache[$name]);
        }

        return $readable;
    }
393485
protected function isColumnSetLocally($name)
	{
		$columns = $this->getColumns();
		return array_contains(
			$columns,
			function($descriptor) use ($name)
			{
				$alias = $descriptor[2];
				$column = $descriptor[1];
				return $name === (null === $alias ? $column : $alias);
			}
		);
	}
465662
public function isCommand($name) {
        if (!$this->docoptResult)
            return false;

        if (!($len=strlen($name)) || !isset($this->docoptResult[$name]))
            return false;
        return (bool) preg_match('/^[a-z]+$/', $name);
    }
675587
public function hasField($name)
    {
        $result = false;
        foreach ($this->fields as $key => $fields) {
            if (isset($fields[$name])) {
                $result = true;
                break;
            }
        }
        return $result;
    }
100096
public function exists($name)
    {
        $suffix = '.twig';
        $endsWithSuffix = strtolower(substr($name, -\strlen($suffix))) === $suffix;

        return !$endsWithSuffix;
    }
253969
public function __isset($name)
    {
        switch ($name) {
        case 'key':
            return !empty($this->secretKey);
        case 'curl':
            return !empty($this->internalCurl);
        default:
            return false;
        }

    }
85157
public function isVirtual($name)
    {
        if (!is_array($name)) {
            return !empty($this->_columns[$name]['virtual']);
        }
        foreach ($name as $field) {
            if (!$this->isVirtual($field)) {
                return false;
            }
        }
        return true;
    }
1054647
public function hasParameter(string $name): bool
    {
        return isset($this->parameters[$name]) || array_key_exists($name, $this->parameters);
    }
1014554
public function exists($name): bool
    {
        return Container::getCache()->get($this->getCacheKey($name)) === null;
    }
198188
public function hasField(string $name) : bool
    {
        return isset($this->fields[$name]) && $this->fields[$name];
    }
656989
public function exists($name)
    {
        list($key, $extra) = $this->_splitOptionName($name);
        if (isset($this->_values[$key]) && is_array($this->_values[$key]) && array_key_exists($extra, $this->_values[$key])) {
            return true;
        }
        if (isset($this->_options[$name])) {
            return isset($this->_options[$name]['default']);
        }
        return false;
    }
827014
public function has($name) {
        $field = Condition::safeField($name);

        return isset ($this->names [ $field ]);
    }
293882
public function has(string $name): bool
    {
        try {
            $this->dotGet($name);
        } catch (DotNotFoundException $e) {
            return false;
        }

        return true;
    }