Lines Matching refs:null
58 * Gets a header value from a message as a string or null
67 * @return string|null Returns the header string if found, or null if not.
72 return $match ? implode(', ', $match) : null;
76 * Returns the first header value from a message as a string or null. If
83 * @return string|null Returns the value as a string if found.
97 return null;
136 : null;
223 * @return null|string Returns the body as a string or null if not set.
229 return null;
336 callable $onFulfilled = null,
337 callable $onRejected = null,
338 callable $onProgress = null
354 public static function getDebugResource($value = null)