RSS(XML) reading process
$this->parser = xml_parser_create();
if(is_resource($this->parser)){
xml_set_object($this->parser, &$this);
xml_set_element_handler($this->parser, ‘feed_start_element’, ‘feed_end_element’);
xml_set_character_data_handler( $this->parser, ‘feed_cdata’ );
return true;
}
return false;
xml_parser_create
(PHP 3>= 3.0.6, PHP 4 , PHP 5)
xml_parser_create — Create an XML parser
Description
resource xml_parser_create ( [string encoding])
xml_parser_create()
creates a new XML parser and returns a resource handle referencing it to be used by the other XML functions.xml_parser_create()는 파서를 생성하고,
관련된 xml 관련 함수의 리소스 핸들러를 사용.
이 옵션은 XML 입력시 파서의 문자 엔코딩을 알아내기 위한 옵션.
ISO-8859-1 기반인 UTF-8, US-ASCII 등을 사용할 수 있다.The optional encoding specifies the character encoding of the XML input to be parsed.
Supported encodings are “ISO-8859-1″, which is also the default if no encoding is specified,
“UTF-8″ and “US-ASCII”.
is_resource
(PHP 4, PHP 5)
is_resource — Finds whether a variable is a resource
Description
bool is_resource ( mixed $var )
Finds whether the given variable is a resource.is_resource()은
var 인자에 주어진 변수가 resource면 TRUE를,
아니라면 FALSE를 반환.Parameters
var
The variable being evaluated.Return Values
Returns TRUE if var is a resource, FALSE otherwise.
xml_set_object
(PHP 4 , PHP 5)
xml_set_object — Use XML Parser within an object
Description
void xml_set_object ( resource parser, object object)
This function allows to use parser inside object.
All callback functions could be set with xml_set_element_handler() etc and assumed to be methods of object.
xml_set_element_handler
(PHP 3>= 3.0.6, PHP 4 , PHP 5)
xml_set_element_handler — Set up start and end element handlers
Description
bool xml_set_element_handler
( resource parser, callback start_element_handler, callback end_element_handler)Sets the element handler functions for the XML parser parser.
start_element_handler and end_element_handler are strings containing the names of functions that must exist when xml_parse() is called for parser.The function named by start_element_handler must accept three parameters:
start_element_handler ( resource parser, string name, array attribs)parser
The first parameter, parser, is a reference to the XML parser calling the handler.name
The second parameter, name, contains the name of the element for which this handler is called.
If case-folding is in effect for this parser, the element name will be in uppercase letters.attribs
The third parameter, attribs, contains an associative array with the element’s attributes (if any).
The keys of this array are the attribute names, the values are the attribute values.
Attribute names are case-folded on the same criteria as element names.
Attribute values are not case-folded.The original order of the attributes can be retrieved by walking through attribs the normal way,
using each().
The first key in the array was the first attribute, and so on.The function named by end_element_handler must accept two parameters:
end_element_handler ( resource parser, string name)parser
The first parameter, parser, is a reference to the XML parser calling the handler.name
The second parameter, name, contains the name of the element for which this handler is called.
If case-folding is in effect for this parser, the element name will be in uppercase letters.If a handler function is set to an empty string, or FALSE, the handler in question is disabled.
TRUE is returned if the handlers are set up, FALSE if parser is not a parser.
xml_set_character_data_handler
(PHP 3>= 3.0.6, PHP 4 , PHP 5)
xml_set_character_data_handler — Set up character data handler
Description
bool xml_set_character_data_handler
( resource parser, callback handler)Sets the character data handler function for the XML parser parser.
handler is a string containing the name of a function that must exist when xml_parse() is called for parser.The function named by handler must accept two parameters:
handler ( resource parser, string data)parser
The first parameter, parser, is a reference to the XML parser calling the handler.data
The second parameter, data, contains the character data as a string.If a handler function is set to an empty string, or FALSE, the handler in question is disabled.
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