18     private $stack = [];  variable in GuzzleHttp\\HandlerStack
42         $stack = new self($handler ?: choose_handler());
43         $stack->push(Middleware::httpErrors(), 'http_errors');
44         $stack->push(Middleware::redirect(), 'allow_redirects');
45         $stack->push(Middleware::cookies(), 'cookies');
46         $stack->push(Middleware::prepareBody(), 'prepare_body');
48         return $stack;
82         $stack = [];
84             $stack[] = "0) Handler: " . $this->debugCallable($this->handler);
88         foreach (array_reverse($this->stack) as $tuple) {
93             $stack[] = $str;
96         foreach (array_keys($stack) as $k) {
97             $result .= "< {$stack[$k]}\n";
133         array_unshift($this->stack, [$middleware, $name]);
145         $this->stack[] = [$middleware, $name];
182         $this->stack = array_values(array_filter(
183             $this->stack,
202             foreach (array_reverse($this->stack) as $fn) {
218         foreach ($this->stack as $k => $v) {
243                 array_unshift($this->stack, $tuple);
245                 $replacement = [$tuple, $this->stack[$idx]];
246                 array_splice($this->stack, $idx, 1, $replacement);
248         } elseif ($idx === count($this->stack) - 1) {
249             $this->stack[] = $tuple;
251             $replacement = [$this->stack[$idx], $tuple];
252             array_splice($this->stack, $idx, 1, $replacement);