(PECL yaml >= 0.4.0)
yaml_parse_file — Parse a YAML stream from a file
Convert all or part of a YAML document stream read from a file to a PHP variable.
Path to the file.
Document to extract from stream (-1 for all documents, 0 for first document, ...).
If ndocs is provided, then it is filled with the number of documents found in stream.
Content handlers for YAML nodes. Associative array of YAML tag => callback mappings.
Returns the value encoded in input in appropriate PHP type 或者在失败时返回 FALSE. If pos is -1 an array will be returned with one entry for each document found in the stream.