使用 SimpleHTMLDom 抓取时替换一段字符串

发布于 2024-10-21 03:39:38 字数 1701 浏览 3 评论 0原文

使用： http://simplehtmldom.sourceforge.net/

我正在比较几乎相同产品的价格不同的品牌。现在，当我从标签获取信息时，重量已经包含在内，我想删除该部分并自己编写重量，因为我将把所有信息放入表格中。

代码：

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>Supplementen Prijzenvergelijking</title>
</head>
<body>
<?php
include("simple_html_dom.php");
// DOM object creeëren
$html = new simple_html_dom();
// HTML ophalen
$html->load_file('http://bodyenfitshop.nl/whey-proteine/body-fit-sportsnutrition/whey-perfection');

$wp22kg = $html->find(".r", 2)->innertext;
$wp44kg = $html->find(".r", 4)->innertext;

// Prijs ophalen van B&F Shop Whey Perfection dmv innertext van <td class=r>
echo "Whey Perfection 2270 gram: " . $wp22kg . "<br>";
echo "Whey Perfection 4540 gram: " . $wp44kg . "<br>";

// HTML ophalen
$html->load_file('http://www.xxlnutrition.nl/whey-delicious/xxl-nutrition');

$wd25kg = $html->find('option[value=437]', 0)->innertext;

// Prijs ophalen van XXL Nutrition Whey Delicious dmv <option value=*>
echo "Whey Delicious " . $wd25kg;
?>
</body>
</html>

这是输出：

Whey Perfection 2270 gram: € 32,90
Whey Perfection 4540 gram: € 54,90
Whey Delicious 2500 gram » € 49.95

我想替换“2500 克 »”，我该怎么做？我尝试过 str_ireplace 和 preg_replace 但无法使其工作，输出保持不变。

注意：我是业余爱好者。

原文

Using: http://simplehtmldom.sourceforge.net/

I'm comparing prices of pretty much the same products of different brands. Now, when I'm getting info from a tag, the weight is already included, I want to get rid of that part and write the weight myself, as I will be putting all the info in a table.

Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>Supplementen Prijzenvergelijking</title>
</head>
<body>
<?php
include("simple_html_dom.php");
// DOM object creeëren
$html = new simple_html_dom();
// HTML ophalen
$html->load_file('http://bodyenfitshop.nl/whey-proteine/body-fit-sportsnutrition/whey-perfection');

$wp22kg = $html->find(".r", 2)->innertext;
$wp44kg = $html->find(".r", 4)->innertext;

// Prijs ophalen van B&F Shop Whey Perfection dmv innertext van <td class=r>
echo "Whey Perfection 2270 gram: " . $wp22kg . "<br>";
echo "Whey Perfection 4540 gram: " . $wp44kg . "<br>";

// HTML ophalen
$html->load_file('http://www.xxlnutrition.nl/whey-delicious/xxl-nutrition');

$wd25kg = $html->find('option[value=437]', 0)->innertext;

// Prijs ophalen van XXL Nutrition Whey Delicious dmv <option value=*>
echo "Whey Delicious " . $wd25kg;
?>
</body>
</html>

This is the output:

Whey Perfection 2270 gram: € 32,90
Whey Perfection 4540 gram: € 54,90
Whey Delicious 2500 gram » € 49.95

I would like to replace “2500 gram » ”, how do I do it ? I've tried str_ireplace and preg_replace but couldn't get it working, output was left unchanged.

Note: I'm an amateur.

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

青巷忧颜 2024-10-28 03:39:38

哦，我已经解决了。我必须在 preg_replace(); 中使用反斜杠；并且必须写出特殊的字符“特殊的方式”。

<?php
// HTML ophalen
$html->load_file('http://www.xxlnutrition.nl/whey-delicious/xxl-nutrition');
$html = preg_replace('/2500 gram » /', '', $html);
$html = str_get_html($html);

$wd25kg = $html->find('option[value=437]', 0)->innertext;

// Prijs ophalen van XXL Nutrition Whey Delicious dmv <option value=*>
echo "Whey Delicious 2500 gram: " . $wd25kg;
?>

Oh, I've solved it. I had to use a backslash with preg_replace(); and had to write the special character “the special way”.

<?php
// HTML ophalen
$html->load_file('http://www.xxlnutrition.nl/whey-delicious/xxl-nutrition');
$html = preg_replace('/2500 gram » /', '', $html);
$html = str_get_html($html);

$wd25kg = $html->find('option[value=437]', 0)->innertext;

// Prijs ophalen van XXL Nutrition Whey Delicious dmv <option value=*>
echo "Whey Delicious 2500 gram: " . $wd25kg;
?>

回复收藏 0 原文

~没有更多了~