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PHP5中文手册

DomDocumentType->system_id()

(No version information available, might be only in CVS)

DomDocumentType->system_id() — Returns the system id of document type

说明

DomDocumentType
string system_id ( void )

Returns the system id of the document type.

返回值

Returns the system id of the DomDocumentType, as a string.

范例

Example#1 Retrieving the system id

<?php
include("example.inc");

if (!
$dom domxml_open_mem($xmlstr)) {
  echo 
"Error while parsing the document\n";
  exit;
}

$doctype $dom->doctype();
echo 
$doctype->system_id();
?>

上例将输出:

/share/sgml/Norman_Walsh/db3xml10/db3xml10.dtd

Migrating to PHP 5

Use the systemId property of the DOMDocumentType object.