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Last updated: Sat, 27 Jan 2007

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# domxml_open_mem

(PHP 4 >= 4.2.1, PECL)

domxml_open_mem -- Creates a DOM object of an XML document

## Описание

DomDocument domxml_open_mem ( string str [, int mode [, array &error]] )

The function parses the XML document in the given string.

## Список параметров

`str`

  The contents of the XML file.

`mode`

  This optional parameter can be used to change the behavior of this function.

  You can use one of the following constants for it: `DOMXML_LOAD_PARSING` (default), `DOMXML_LOAD_VALIDATING` or `DOMXML_LOAD_RECOVERING`. You can add to it also `DOMXML_LOAD_DONT_KEEP_BLANKS`, `DOMXML_LOAD_SUBSTITUTE_ENTITIES` and `DOMXML_LOAD_COMPLETE_ATTRS` by bitwise or.

`error`

  If used, it will contain the error messages. `error` must be passed in by reference.

## Возвращаемые значения

Returns a DomDocument instance of the given XML contents.

## Примеры

Пример 1. Opening an XML document in a string

`<?php
include("example.inc");
if (!$dom = domxml_open_mem($xmlstr)) {
echo "Error while parsing the document\n";
exit;
}
$root = $dom->document_element();
?>`

## Смотрите также

domxml_open_file()
domxml_new_doc()

add a note User Contributed Notes
domxml_open_mem
ardent at ahmeni dot org
07-Feb-2006 12:31
`Although undocumented, domxml_open_mem does not exist in PHP5. See this site for a quick fix:
http://alexandre.alapetite.net/doc-alex/domxml-php4-php5/index.en.html`
msh at onliners dot dk
28-Feb-2005 09:51
`It's always nice to see just where in the XML the error is so I've enhanced the error message example above to this:
// Read and parse dynamic PHP/XML document.
ob_start();
require($_REQUEST['page'].'.php');
$xml = ob_get_contents();
ob_end_clean();
$xmldoc = domxml_open_mem("<?xml version='1.0' encoding='ISO-8859-1'?>".$xml, DOMXML_LOAD_PARSING, $error);
// Show error.
if(!$xmldoc) {
// Assign each line to array.
$arXML = explode("\n", $xml);
echo "<pre>";
foreach ($error as $errorline) {
echo $errorline['errormessage'].
"Node: ".$errorline['nodename']."\n".
"Line: ".$errorline['line']."\n".
"Column: ".$errorline['col']."\n";
// Locate actual line number.
$arErrorMessage = explode(' line ', $errorline['errormessage']);
$arErrorMessage = explode(' ', $arErrorMessage[1]);
$errorLineNumber = $arErrorMessage[0];
// Show +/- 10 lines around error.
$minErrorLineNumber = max(0, $errorLineNumber-10);
$maxErrorLineNumber = min(sizeof($arXML), $errorLineNumber+10);
echo "XML snip (linies: ".$minErrorLineNumber." to ".$maxErrorLineNumber."):\n";
for($n = $minErrorLineNumber; $n < $maxErrorLineNumber; $n++)
if($n == $errorLineNumber)
echo "<B>".htmlentities($arXML[$n])."</B>\n";
else
echo htmlentities($arXML[$n])."\n";
echo "\n\n";
}
echo "</pre>";
}
This will actually render +/- 10 lines around the actual error. Hope others will find this usefull aswell.`
Lian Yuen Chi <yuenqi at hotmail dot com>
08-Oct-2004 07:40
`Regarding the 'magic_quotes_runtime = On' issue in XML parsing, I will suggest using the method below, for those who do not want to turn off the setting in the configuration file.
<?php
$original-magic-quotes-runtime-value = get_magic_quotes_runtime();
set_magic_quotes_runtime(0);
your-xml-parsing-codes();
set_magic_quotes_runtime($original-magic-quotes-runtime-value);
?>`
heiko[dot]weber[at]softwareag[dot]com
19-Aug-2004 02:28
`Careful, this function will not work with XML documents which are in UTF-16 or UTF-32 encoding and include a BOM at the beginning, so your code will need a special handling for these encodings.`
Carl Wurtz
13-Jul-2004 01:01
`A recursive function that parses XML into objects:
<?php
$xmlstg = '<?xml version="1.0"?';
$xmlstg .= '><candy><anatomically_shaped><head_to_bite_off>chocolate bunnies</head_to_bite_off><headless>gummi worms</headless></anatomically_shaped></candy>';
$dom = domxml_open_mem($xmlstg);
$root = $dom->document_element();
$root->name = '$candy';
function parse_node($node) {
global $candy;
if ($node->has_child_nodes()) {
foreach($node->child_nodes() as $n) {
if ($n->node_name() == '#text') {
eval("$node->name=\"" . $n->node_value() . "\";");
}
else {
$n->name = $node->name . '->' . $n->node_name();
parse_node($n);
}
}
}
}
parse_node($root);
echo $candy->anatomically_shaped->head_to_bite_off;
// echos "chocolate bunnies"
?>`
voituk [on] asg [dot] kiev [dot] ua
07-Jul-2004 05:48
`There is some interesting feature with "magic_quotes_runtime" ini directive and "domxml_open_mem" function.
If we have "magic_quotes_runtime=on" in out php.ini file, this code generates many warning
$xml_str = file_get_contents($xml_file));
$Document = domxml_open_mem($xml_str));
if "magic_quotes_runtime=off" all is good.`
ej at campbell *dot* name
30-Nov-2003 07:54
`The DOM XML parser does not automatically free memory when a DomDocument goes out of scope.
If you're using the DOM parser to parse several XML files as part of a long running script, you must free the DomDocument manually or a memory leak will occur.
To free a DOM document allocated by domxml_open_mem, do the following:
$doc = domxml_open_mem("$contents");
$doc->free();`
chris at schaake dot nu
01-Nov-2003 10:20
`Finally figured out the error handling. The sample below will give a nice error message. Should also work for domxml_open_file.
<?
# Small sample xml file with 2 errors
# 1. root tag not closed
# 2. Missing ; in &amp;
$xml = "<root>&amp";
$xmldoc = @domxml_open_mem($xml,DOMXML_LOAD_PARSING,$error);
echo "<pre>"; # Just for nice layout
foreach ($error as $errorline) { # Loop through all errors
echo $errorline['errormessage'];
echo " Node : " . $errorline['nodename'] . "\n";
echo " Line : " . $errorline['line'] . "\n";
echo " Column : " . $errorline['col'] . "\n\n";
}
?>`
jon at hiveminds dot net
16-Oct-2003 10:10
`You can also create a new DomDocument instance by calling its constructor:
<?php
$doc = new DomDocument($xml);
?>
where $xml is any string of well-formed XML.`
add a note
domxml_version domxml_open_file

Last updated: Sat, 27 Jan 2007
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