PHP xml_set_element_handler() Function
 Complete PHP XML Reference
Definition and Usage
The xml_set_element_handler() function specifies functions to be called at
the start and end of an element in the XML document.
This function returns TRUE on success, or FALSE on
failure.
Syntax
xml_set_element_handler(parser,start,end)
|
| Parameter |
Description |
| parser |
Required. Specifies XML parser to use |
| start |
Required. Specifies a function to be called at the start of
an element |
| end |
Required. Specifies a function to be called at the end of
an element |
The Function specified by the "start" parameter must have three parameters:
| Parameter |
Description |
| parser |
Required. Specifies a variable containing the XML parser
calling the handler |
| name |
Required. Specifies a variable containing the name of the
elements, that triggers this function,
from the XML file as a string |
| data |
Required. Specifies an array containing the elements
attributes from the XML file as a string |
The Function specified by the "end" parameter must have two parameters:
| Parameter |
Description |
| parser |
Required. Specifies a variable containing the XML parser
calling the handler |
| name |
Required. Specifies a variable containing the name of the
elements, that triggers this function,
from the XML file as a string |
Tips and Notes
Note: The start and end parameters can also be an array containing an
object reference and a method name.
Example
<?php
$parser=xml_parser_create();
function start($parser,$element_name,$element_attrs)
{
switch($element_name)
{
case "NOTE":
echo "-- Note --<br />";
break;
case "TO":
echo "To: ";
break;
case "FROM":
echo "From: ";
break;
case "HEADING":
echo "Heading: ";
break;
case "BODY":
echo "Message: ";
}
}
function stop($parser,$element_name)
{
echo "<br />";
}
function char($parser,$data)
{
echo $data;
}
xml_set_element_handler($parser,"start","stop");
xml_set_character_data_handler($parser,"char");
$fp=fopen("test.xml","r");
while ($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 will be:
-- Note --
To: Tove
From: Jani
Heading: Reminder
Message: Don't forget me this weekend!
|
Complete PHP XML Reference
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