我会直接进入它....
我的 ajax 实时搜索出现问题,使用 xml 进行一种库存图像搜索功能,代码看到将图像文件名导入到 xml 文件中以用于实时搜索,但是,带有一些特殊字符的图像文件名(如"-"
)导致实时搜索不起作用。我提供了下面的代码...
我想做的是在preg_replace中编写代码来清理这些类型特殊字符的文件名,理想情况下只使用字母、数字、句点和美元符号。我不确定在将文件名导入 xml 文件之前清理文件名还是在之后清理它们是否明智?任何帮助,非常感谢。
<?php
$path_to_image_dir = 'images'; // relative path to your image directory
$xml_string = <<<XML
<?xml version="1.0" encoding="UTF-8"?>
<images>
</images>
XML;
$xml_generator = new SimpleXMLElement($xml_string);
$it = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path_to_image_dir));
foreach($it as $path => $file) {
if($file->isDir()) continue; // skip folders
list( $width, $height ) = getimagesize($path);
$image = $xml_generator->addChild('image');
$image->addChild('path', $path);
$image->addChild('thumbnail', "<img src='$path' />");
}
$file = fopen('data.xml','w');
fwrite($file, $xml_generator->asXML());
fclose($file);?>
<!-- php code for initiating instant search of xml data file -->
<?php
$xmlDoc=new DOMDocument();
$xmlDoc->load("data.xml");
$x=$xmlDoc->getElementsByTagName('image'); //used to be link, now image, could be images
//get the q parameter from URL
$q=$_GET["q"];
//lookup all links from the xml file if length of q>0
if (strlen($q)>0) {
$hint="";
for($i=0; $i<($x->length); $i++) {
$y=$x->item($i)->getElementsByTagName('path');
$z=$x->item($i)->getElementsByTagName('thumbnail');
$w=$x->item($i)->getElementsByTagName('image');
if ($y->item(0)->nodeType==1) {
//find a link matching the search text
if (stristr($y->item(0)->childNodes->item(0)->nodeValue,$q)) {
if ($hint=="") {
$hint="<a style='font: bold 16px/18px century gothic, serif;' href='
".$y->item(0)->childNodes->item(0)->nodeValue."' target='_blank'>
".$y->item(0)->childNodes->item(0)->nodeValue."<br>
".$z->item(0)->childNodes->item(0)->nodeValue." <br><br>
";
}
else
{
$hint=$hint ."<a style='font: bold 16px/18px century gothic, serif;' href='
".$y->item(0)->childNodes->item(0)->nodeValue."' target='_blank'>
".$y->item(0)->childNodes->item(0)->nodeValue."<br>
".$z->item(0)->childNodes->item(0)->nodeValue." <br><br>
";
}
}
}
}
}
// Set output to "no suggestion" if no hint were found
// or to the correct values
if ($hint=="") {
$response="Search found ' 0 ' matches";
} else {
$response=$hint;
}
//output the response
echo $response;
?>
我尝试添加它来清理文件名,但它不起作用:
function clean($string) {
$string = str_replace('-', 'test', $string);
return preg_replace('/[^A-Za-z0-9'-]/', '', $string);
}
然后将回声更改为此...(但没有按我的计划工作,
echo clean ($response);
这可以通过str_replace()
来实现:
function clean($string) {
$forbidden = array('-','#', ',');
$clean = str_replace($forbidden, '_', $string);
return $clean;
}
要实现:
echo clean('test-img-101.png'); //outputs test_img_101.png