PHP XML ?? ???
??? Expat ??? ???? PHP?? XML ??? ??? ? ????.
XML?? ??????
XML? ???? ????? ??? ?? ???? ???? ? ?????. XML ??? ???? ??? ?????.
XML?? ?? ??? ??? ????. ???? ??? ???? ???.
XML? ?? ??? ????? XML ????? ?????.
Expat? ??????
XML ??? ?? ????(?? ? ??)??? XML ??? ?????.
XML ???? ? ?? ?? ??? ????.
· ?? ?? ??: ? ??? XML ??? ?? ??? ?????. ?? ??? ???? DOM(?? ?? ??)? ?? ??? ??? ?? ???? ?????.
· ??? ?? ??: XML ??? ??? ???? ?????. ?? ???? ???? ??? ?? ???? ??? ?????.
Expat ??? ??? ?? ?????.
??? ?? ??? ????? XML ??? ??? ??? ???. ? ??? ??? ?? ??? ?? ?? ???? ? ??? ???? ???? ? ????.
?? XML ??? ?????.
<from>Jani</from>
??? ?? ??? ?? XML? ??? ? ?? ???? ?????.
· ?? ??: from
· ?? CDATA ??, ?: Jani
· ?? ??: from
?? XML ??? ??? ??? XML? ???? ????. ??? ? ????? ??? DTD(?? ?? ??)? ?? ??? ??? XML???.
??? Expat ??? ??? ?? ??? ??? ????. Expat? ???? ???? ?? DTD? ???? ?????.
??? ??? ???? ?? XML ??? Expat? ??? ???? PHP ? ??????? ??????.
??: XML ??? ??? ????? ???. ??? ??? Expat?? ??? ?????.
??
XML Expat ?? ??? PHP ??? ?? ?????. ? ??? ???? ?? ??? ???? ????.
XML ??
? ????? ?? parser_expat.xml ??? ?????:
<?xml version="1.0" encoding="ISO-8859-1"?> <note> <to>Tove</to> <from>Jani</from> <heading>Reminder</heading> <body>Don't forget me this weekend!</body> </note>
XML ?? ???
PHP?? XML ??? ????? ??? XML ???? ?? ???? ??? ?? ? XML ??? ?? ???????.
Instance
<?php
//Initialize the XML parser
$parser=xml_parser_create();
//Function to use at the start of an element
function start($parser,$element_name,$element_attrs)
{
switch($element_name)
{
case "NOTE":
echo "-- Note --<br>";
break;
case "TO":
echo "To: ";
break;
case "FROM":
echo "From: ";
break;
case "HEADING":
echo "Heading: ";
break;
case "BODY":
echo "Message: ";
}
}
//Function to use at the end of an element
function stop($parser,$element_name)
{
echo "<br>";
}
//Function to use when finding character data
function char($parser,$data)
{
echo $data;
}
//Specify element handler
xml_set_element_handler($parser,"start","stop");
//Specify data handler
xml_set_character_data_handler($parser,"char");
//Open XML file
$fp=fopen("parser_expat.xml","r");
//Read data
while ($data=fread($fp,4096))
{
xml_parse($parser,$data,feof($fp)) or
die (sprintf("XML Error: %s at line %d",
xml_error_string(xml_get_error_code($parser)),
xml_get_current_line_number($parser)));
}
//Free the XML parser
xml_parser_free($parser);
?>? ??? ??? ?????:
-- ?? --
?? ??: ??
?? ??: Jani
??: ??
???: ?? ??? ?? ?? ???!
?? ??:
1. xml_parser_create() ??? ?? XML ??? ??????
2. ??? ??? ???? ???? ??? ????
3. xml_set_element_handler() ??? ?????. ??? ?? ? ? ??? ??? ? ???? ??
4. ??? ?? ???? ??? ? ???? ??? ????? xml_set_character_data_handler() ??? ?????
5. ) ??? ???? "test.xml" ??? ?? ?????
6. ??? ?? ?? xml_error_string() ??? ???? XML ??? ??? ???? ?????
7. xml_parser_free() ??? ???? xml_parser_create() ??? ??? ???? ?????.
PHP Expat ??? ?? ?? ??
PHP Expat ??? ?? ??? ????? PHP XML ?? ?? ???? ?????.
