This function converts an xml file to an associative array. It supports multiple attributes of the same name on the same level through use of an array. It could be very useful in situations where small xml files are being used for config info.
By : simgar
<?php
// {{{ toString()
/**
* This method converts a file to a string. It returns an Error object if it is unable to open the file.
*
* @param fileName String. The name of the file to convert.
*
* @return String
* @author simgar
*/
function & toString( $fileName )
{
if ($content_array = file($fileName))
{
return implode("", $content_array);
}
else
{
// Error
return false;
}
}
// }}}
// {{{ xmlFileToArray()
/**
* This static method converts an xml file to an associative array
* duplicating the xml file structure.
*
* @param $fileName. String. The name of the xml file to convert.
* This method returns an Error object if this file does not
* exist or is invalid.
* @param $includeTopTag. booleal. Whether or not the topmost xml tag
* should be included in the array. The default value for this is false.
* @param $lowerCaseTags. boolean. Whether or not tags should be
* set to lower case. Default value for this parameter is true.
* @access public static
* @return Associative Array
* @author simgar
*/
function & xmlFileToArray($fileName, $includeTopTag = false, $lowerCaseTags = true)
{
// Definition file not found
if (!file_exists($fileName))
{
return Error::logError("File::xmlFileToArray: Failed - File '" . $fileName .
"' does not exist", __FILE__, __LINE__, SRA_ERROR_PROBLEM);
}
$p = xml_parser_create();
xml_parse_into_struct($p,File::toString($fileName),$vals,$index);
xml_parser_free($p);
$xml = array();
$levels = array();
$multipleData = array();
$prevTag = "";
$currTag = "";
$topTag = false;
foreach ($vals as $val)
{
// Open tag
if ($val["type"] == "open")
{
if (!File::_xmlFileToArrayOpen($topTag, $includeTopTag, $val, $lowerCaseTags,
$levels, $prevTag, $multipleData, $xml))
{
continue;
}
}
// Close tag
else if ($val["type"] == "close")
{
if (!File::_xmlFileToArrayClose($topTag, $includeTopTag, $val, $lowerCaseTags,
$levels, $prevTag, $multipleData, $xml))
{
continue;
}
}
// Data tag
else if ($val["type"] == "complete" && isset($val["value"]))
{
$loc =& $xml;
foreach ($levels as $level)
{
$temp =& $loc[str_replace(":arr#", "", $level)];
$loc =& $temp;
}
$tag = $val["tag"];
if ($lowerCaseTags)
{
$tag = strtolower($val["tag"]);
}
$loc[$tag] = str_replace("\\n", "\n", $val["value"]);
}
// Tag without data
else if ($val["type"] == "complete")
{
File::_xmlFileToArrayOpen($topTag, $includeTopTag, $val, $lowerCaseTags,
$levels, $prevTag, $multipleData, $xml);
File::_xmlFileToArrayClose($topTag, $includeTopTag, $val, $lowerCaseTags,
$levels, $prevTag, $multipleData, $xml);
}
}
return $xml;
}
// }}}
// {{{ _xmlFileToArrayOpen()
/**
* Private support function for File::xmlFileToArray. Handles an xml OPEN tag.
*
* @param $topTag. String. xmlFileToArray topTag variable
* @param $includeTopTag. boolean. xmlFileToArray includeTopTag variable
* @param $val. String[]. xmlFileToArray val variable
* @param $currTag. String. xmlFileToArray currTag variable
* @param $lowerCaseTags. boolean. xmlFileToArray lowerCaseTags variable
* @param $levels. String[]. xmlFileToArray levels variable
* @param $prevTag. String. xmlFileToArray prevTag variable
* @param $multipleData. boolean. xmlFileToArray multipleData variable
* @param $xml. String[]. xmlFileToArray xml variable
* @access private static
* @return boolean
* @author simgar
*/
function _xmlFileToArrayOpen(& $topTag, & $includeTopTag, & $val, & $lowerCaseTags,
& $levels, & $prevTag, & $multipleData, & $xml)
{
// don't include top tag
if (!$topTag && !$includeTopTag)
{
$topTag = $val["tag"];
return false;
}
$currTag = $val["tag"];
if ($lowerCaseTags)
{
$currTag = strtolower($val["tag"]);
}
$levels[] = $currTag;
// Multiple items w/ same name. Convert to array.
if ($prevTag === $currTag)
{
if (!array_key_exists($currTag, $multipleData) ||
!$multipleData[$currTag]["multiple"])
{
$loc =& $xml;
foreach ($levels as $level)
{
$temp =& $loc[$level];
$loc =& $temp;
}
$loc = array($loc);
$multipleData[$currTag]["multiple"] = true;
$multipleData[$currTag]["multiple_count"] = 0;
}
$multipleData[$currTag]["popped"] = false;
$levels[] = ":arr#" . ++$multipleData[$currTag]["multiple_count"];
}
else
{
$multipleData[$currTag]["multiple"] = false;
}
// Add attributes array
if (array_key_exists("attributes", $val))
{
$loc =& $xml;
foreach ($levels as $level)
{
$temp =& $loc[str_replace(":arr#", "", $level)];
$loc =& $temp;
}
$keys = array_keys($val["attributes"]);
foreach ($keys as $key)
{
$tag = $key;
if ($lowerCaseTags)
{
$tag = strtolower($tag);
}
$loc["attributes"][$tag] = & $val["attributes"][$key];
}
}
return true;
}
// }}}
// {{{ _xmlFileToArrayClose()
/**
* Private support function for File::xmlFileToArray. Handles an xml OPEN tag.
*
* @param $topTag. String. xmlFileToArray topTag variable
* @param $includeTopTag. boolean. xmlFileToArray includeTopTag variable
* @param $val. String[]. xmlFileToArray val variable
* @param $currTag. String. xmlFileToArray currTag variable
* @param $lowerCaseTags. boolean. xmlFileToArray lowerCaseTags variable
* @param $levels. String[]. xmlFileToArray levels variable
* @param $prevTag. String. xmlFileToArray prevTag variable
* @param $multipleData. boolean. xmlFileToArray multipleData variable
* @param $xml. String[]. xmlFileToArray xml variable
* @access private static
* @return boolean
* @author simgar
*/
function _xmlFileToArrayClose(& $topTag, & $includeTopTag, & $val, & $lowerCaseTags,
& $levels, & $prevTag, & $multipleData, & $xml)
{
// don't include top tag
if ($topTag && !$includeTopTag && $val["tag"] == $topTag)
{
return false;
}
if ($multipleData[$currTag]["multiple"])
{
$tkeys = array_reverse(array_keys($multipleData));
foreach ($tkeys as $tkey)
{
if ($multipleData[$tkey]["multiple"] && !$multipleData[$tkey]["popped"])
{
array_pop($levels);
$multipleData[$tkey]["popped"] = true;
break;
}
else if (!$multipleData[$tkey]["multiple"])
{
break;
}
}
}
$prevTag = array_pop($levels);
if (strpos($prevTag, "arr#"))
{
$prevTag = array_pop($levels);
}
return true;
}
// }}}
?>
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