My XML file looks like :
<record>
<name>John</name>
<StartDate>01-05-2016</StartDate>
<EndDate>30-10-2016</EndDate>
</record>
<record>
<name>Jerry</name>
<StartDate>29-04-2016</StartDate>
<EndDate>30-06-2016</EndDate>
</record>
<record>
<name>Mike</name>
<StartDate>05-06-2016</StartDate>
<EndDate>25-08-2016</EndDate>
</record>
I have Two Dates Say :
start date: 30-04-2016 and,
end date: 27-08-2016
I want to write a Xpath Query which will return all the record which have <StartDate> and <EndDate> In between the above two dates(Both Inclusive).
You can parse data and add to an array, as a stdClass or whatever you like most:
<?php
$xml =
'<root>
<record>
<name>John</name>
<StartDate>01-05-2016</StartDate>
<EndDate>30-10-2016</EndDate>
</record>
<record>
<name>Jerry</name>
<StartDate>29-04-2016</StartDate>
<EndDate>30-06-2016</EndDate>
</record>
<record>
<name>Mike</name>
<StartDate>05-06-2016</StartDate>
<EndDate>25-08-2016</EndDate>
</record>
</root>';
$doc= new DOMDocument();
$doc->loadXML($xml);
$xpath = new DOMXpath($doc);
$elements = $xpath->query("//record");
$output = [];
$format = 'd-m-Y';
$startDate = DateTime::createFromFormat($format, '30-04-2016');
$endDate = DateTime::createFromFormat($format, '27-08-2016');
foreach($elements as $element) {
$elementStartDate = DateTime::createFromFormat($format, $element->getElementsByTagName("StartDate")->item(0)->nodeValue);
$elementEndDate = DateTime::createFromFormat($format, $element->getElementsByTagName("EndDate")->item(0)->nodeValue);
if( ($startDate <= $elementStartDate) &&
($endDate >= $elementEndDate)) {
$obj = new stdClass;
$obj->name = $element->getElementsByTagName("name")->item(0)->nodeValue;
$obj->startDate = $element->getElementsByTagName("StartDate")->item(0)->nodeValue;
$obj->endDate = $element->getElementsByTagName("EndDate")->item(0)->nodeValue;
$output[] = $obj;
}
}
var_dump($output);
Output
array(1) {
[0]=>
object(stdClass)#10 (3) {
["name"]=>
string(4) "Mike"
["startDate"]=>
string(10) "05-06-2016"
["endDate"]=>
string(10) "25-08-2016"
}
}
$startDate = date_format(date_create('30-04-2016'),'d-m-Y');
$endDate = date_format(date_create('27-08-2016'),'d-m-Y');
$doc = new DOMDocument();
$doc->loadXML('<records><record><name>John</name><StartDate>01-05-2016</StartDate><EndDate>30-10-2016</EndDate></record><record><name>Jerry</name><StartDate>29-04-2016</StartDate><EndDate>30-06-2016</EndDate></record><record><name>Mike</name><StartDate>05-06-2016</StartDate><EndDate>25-08-2016</EndDate></record></records>');
$xpath = new DOMXpath($doc);
//Get all XML "RECORDS"
$elements = $xpath->query("//record");
// Loop through the result elements of the xpath query
if (!is_null($elements)) {
foreach ($elements as $element) {
$nodes = $element->childNodes;
foreach ($nodes as $node) {
// Use two logical type variables for each element
($node->nodeName=='StartDate' && date_format(date_create($node->nodeValue),'d-m-Y')>=$startDate) ? $stD = 1 : $stD = 0;
($node->nodeName=='EndDate' && date_format(date_create($node->nodeValue),'d-m-Y')<=$endDate) ? $edD = 1 : $edD = 0;
}
// if both $stD and $edD variables do not have logical 1 as value then our $element does not meet the expected dates condition so we remove it from the xml string
if($stD!=1 && $edD!=1) {
$element->parentNode->removeChild($element);
}
}
echo $doc->saveXML();
}
Check the above output in PHP Sandbox
I have Two Dates Say :
start date: 30-04-2016 and, end date: 27-08-2016I want to write a Xpath Query which will return all the record which have
<StartDate>and<EndDate>In between the above two dates(Both Inclusive).
Here is a single, pure XPath 2.0 expression that selects all such <record> elements:
/*/record
[xs:date(string-join(reverse(tokenize(StartDate, '-')), '-')) ge xs:date('2016-04-30')
and xs:date(string-join(reverse(tokenize(EndDate, '-')), '-')) le xs:date('2016-08-27')]
XSLT-based verification:
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="/">
<xsl:copy-of select=
"/*/record
[xs:date(string-join(reverse(tokenize(StartDate, '-')), '-'))
ge xs:date('2016-04-30')
and xs:date(string-join(reverse(tokenize(EndDate, '-')), '-'))
le xs:date('2016-08-27')]"/>
</xsl:template>
</xsl:stylesheet>
When this transformation is applied on the following XML document (the provided fragment with a top element parent):
<t>
<record>
<name>John</name>
<StartDate>01-05-2016</StartDate>
<EndDate>30-10-2016</EndDate>
</record>
<record>
<name>Jerry</name>
<StartDate>29-04-2016</StartDate>
<EndDate>30-06-2016</EndDate>
</record>
<record>
<name>Mike</name>
<StartDate>05-06-2016</StartDate>
<EndDate>25-08-2016</EndDate>
</record>
</t>
the Xpath expression is evaluated and the selected nodes (in this case just one) are copied to the output:
<record>
<name>Mike</name>
<StartDate>05-06-2016</StartDate>
<EndDate>25-08-2016</EndDate>
</record>
II. XPath 1.0 solution
The equivalent XPath 1.0 expression is:
/*/record
[concat(substring(StartDate,7), substring(StartDate,4,2), substring(StartDate,1,2))
>= 20160430
and not(concat(substring(EndDate,7), substring(EndDate,4,2), substring(EndDate,1,2))
> 20160827)]
XSLT 1.0 - based verification:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="/">
<xsl:copy-of select=
"/*/record
[concat(substring(StartDate,7), substring(StartDate,4,2), substring(StartDate,1,2))
>= 20160430
and not(concat(substring(EndDate,7), substring(EndDate,4,2), substring(EndDate,1,2))
> 20160827)]"/>
</xsl:template>
</xsl:stylesheet>
When this transformation is applied on the same XML document as above, the same wanted, correct result is produced:
<record>
<name>Mike</name>
<StartDate>05-06-2016</StartDate>
<EndDate>25-08-2016</EndDate>
</record>