(PECL yaml >= 0.4.0)
yaml_parse_url — Parse a Yaml stream from a URL
$pos= 0 [, int
$callbacks= null ]]] )
Convert all or part of a YAML document stream read from a URL to a PHP variable.
url should be of the form "scheme://...". PHP
will search for a protocol handler (also known as a wrapper) for that
scheme. If no wrappers for that protocol are registered, PHP will emit
a notice to help you track potential problems in your script and then
continue as though filename specifies a regular file.
Document to extract from stream (-1 for all documents, 0 for first document, ...).
ndocs is provided, then it is filled with the
number of documents found in stream.
Returns the value encoded in
input in appropriate
PHP type 或者在失败时返回
-1 an array will be returned with one entry
for each document found in the stream.
Processing untrusted user input with yaml_parse_url() is dangerous if the use of unserialize() is enabled for nodes using the !php/object tag. This behavior can be disabled by using the yaml.decode_php ini setting.