2

我需要替换 curl 获取的页面中的 url 并添加正确的图像和链接链接。我的 php curl 代码是：

<?php

function getPage($url) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);

    $result = curl_exec($ch);
    curl_close($ch);

    if (!preg_match('/src="https?:\/\/"/', $result))
    $result = preg_replace('/src="(.*)"/', "src=\"http://support.prophpbb.com/\\1\"", $result);
    if (!preg_match('/href="https?:\/\/"/', $result))
    $result = preg_replace('/href="(.*)"/', "href=\"http://support.prophpbb.com/\\1\"", $result);
    return $result;
}

$result = getPage('http://support.prophpbb.com/');

print_r ($result);

?>

此代码适用于某些链接，但对于正确的链接，它会重复。

从错误的链接，替换为正确的：

<img src="./uploads/support/images/1355955233.png" alt="" title="" />
<img src="http://support.prophpbb.com/./uploads/support/images/1355955233.png" alt="" title="" />

但是正确的链接，被替换为错误的：

<img src="http://support.prophpbb.com/styles/subsilverPlus/theme/images/icon_mini_faq.gif" width="12" height="13" alt="*" />
<img src="http://support.prophpbb.com/http://support.prophpbb.com/styles/subsilverPlus/theme/images/icon_mini_faq.gif" width="12" height="13" alt="*" />

有人可以帮我吗？

4

1 回答 1

0

在 preg_replace 中试试这个正则表达式

<?php

function getPage($url) {
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 30);

    $result = curl_exec($ch);
    curl_close($ch);

    if (!preg_match('/src="https?:\/\/"/', $result)) {
        $result = preg_replace('/src="(http:\/\/([^\/]+)\/)?([^"]+)"/', "src=\"http://support.prophpbb.com/\\3\"", $result);
    }
    if (!preg_match('/href="https?:\/\/"/', $result)) {
        $result = preg_replace('/href="(http:\/\/([^\/]+)\/)?([^"]+)"/', "href=\"http://support.prophpbb.com/\\3\"", $result);
    }
    return $result;
}

$result = getPage('http://support.prophpbb.com/');

print_r ($result);
于 2013-10-04T17:36:32.040 回答