(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.
filename
Path to the file.
pos
Document to extract from stream (-1 for all documents, 0 for first document, ...).
ndocs
If ndocs is provided, then it is filled with the
number of documents found in stream.
callbacks
Content handlers for YAML nodes. Associative array of YAML tag => callable mappings. See parse callbacks for more details.
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.