PHP xml_set_default_handler () function
Complete PHP XML Reference Definition and Usage
xml_set_default_handler () function for the XML parser to establish a default data processor.
The function specified in the function as long as the parser to find the data in the XML file will be called.
If successful, the function returns TRUE. If it fails, it returns FALSE.
grammar
xml_set_default_handler(parser,handler)
| 参数 | 描述 |
|---|---|
| parser | 必需。规定要使用的 XML 解析器。 |
| handler | 必需。规定作为事件处理器使用的函数。 |
By the function "handler" parameter specified must have two parameters:
| 参数 | 描述 |
|---|---|
| parser | 必需。规定一个变量，包含调用处理器的 XML 解析器。 |
| data | 必需。规定一个变量，包含 XML 文件中的数据（作为字符串）。 |
Tips and Notes
NOTE: handler can also be a parameter that contains an array of object references and method names.
Examples
XML file
<?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>
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
PHP code
<?php
$parser=xml_parser_create();
function default($parser,$data)
{
echo $data;
}
xml_set_default_handler($parser,"default");
$fp=fopen("test.xml","r");
while ($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)));
}
xml_parser_free($parser);
?>
$parser=xml_parser_create();
function default($parser,$data)
{
echo $data;
}
xml_set_default_handler($parser,"default");
$fp=fopen("test.xml","r");
while ($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)));
}
xml_parser_free($parser);
?>
The output of the code above is as follows:
Tove Jani Reminder Don't forget me this weekend!
If you "view source" in the browser window to select, you will see the following HTML:
<note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
<to>Tove</to>
<from>Jani</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>
Complete PHP XML Reference