如何使Xpath搜索大小写不敏感

Question

我正在进行xpath搜索,我已经进行了搜索,但是我需要让它不区分大小写.我正在使用的xml文件是1.0,从我的研究意味着我必须使用一些称为翻译函数的东西,但我不确定如何做到这一点.

这是我的搜索文件:

$holidayDoc = simplexml_load_file('holidays.xml');      

// fetch data from form
$txtSearch = $_GET['txtSearch'];

$qry = "//channel/item[contains(.,\"$txtSearch\")]";


$holidays = $holidayDoc->xpath($qry);   // do the xpath query 
// now loop through all the students

echo "Showing title search results for $txtSearch";

foreach ($holidays as $holiday) 
{

 echo "<p><a href=\"{$holiday->link}\">{$holiday->title}</a></p>
    <p><small>$holiday->pubDate</small></p>";

非常感谢任何帮助.

Answer 1

XPath 1.0:

$qry = "//channel/item[contains(
 translate(., 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'),  
 translate($search, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'))]"

XPath 2.0:

$qry = "//channel/item[lower-case(.) = lower-case($search)]"

两者都将小写字母替换为小写字母.