我不能只使用preg_match或preg_replace调用div中的链接

Question

This is my code:

$curl = curl_init('http://www.houseoffraser.co.uk/');
$userAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/525.13 (KHTML, like Gecko) Chrome/0.A.B.C Safari/525.13";

curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT ,0);
curl_setopt($curl, CURLOPT_USERAGENT, $userAgent);
curl_setopt($curl, CURLOPT_TIMEOUT, 400);
ini_set('max_execution_time', 300);

$page = curl_exec($curl);

if(curl_errno($curl)) // check for execution errors
{
    echo 'Scraper error: ' . curl_error($curl);
    exit;
}

$html= curl_close($curl);

$dom = new DOMDocument();
@$dom->loadHTML($html);

$regex = '/<nav class="hof-buttons">(.*?)<\/nav>/s';

if (preg_match($regex, $page, $list)) {
    echo  preg_replace("/<\\/?a(\\s+.*?>|>)/", "", $list[0])."<br />";
} else {
    print "Not found";  
}

I tried to get only the url name from the div tag. But it only gives me error. I want something like this in the main:

<div class="a"><a href="abc.php">a linki</a></div> 

and in the codes it must be something like this:

if ( preg_match($regex, $page, $list) ){}; 

echo  <a href="$list[1]"> $list[0]</a>;

But when I use this, it gives me error or no array. I want to have a code like that but how can I add what I want into the preg_match or how can I call the links in the div?

Answer 1

Ok, here's the entire solution (if this is what you're looking for).
And, btw., without curl, just file_get_contents() does it:

I took over your 3-step approach:

• Step 1: extract between <nav>…</nav>.
• Step 2: extract between <div>…</div> all hrefs.
• Step 3: gather text from different sources and clean it.

Code

<?php
$page = file_get_contents('http://www.houseoffraser.co.uk/');

if($page===false) // check for execution errors
{
    echo 'Scraper error: ' . curl_error($curl);
    exit;
}

if ( preg_match_all('%<nav class=[\'"]{1,1}hof-buttons-set left[\'"]{1,1}>(.*?)</nav>%si', $page, $regs1, PREG_PATTERN_ORDER) ) {
    for ($x1 = 0; $x1 < count($regs1[0]); $x1++) {
        if ( preg_match_all('%<div.*?<a href=[\'"]{1,1}([^\'"]*?)[\'"]{1,1}>(.*?)</a>.*?</div>%sim', $regs1[1][$x1], $regs2, PREG_PATTERN_ORDER) ) {
            for ($x2 = 0; $x2 < count($regs2[0]); $x2++) {
            $link = $regs2[1][$x2];
            if (preg_match('/<img.*? title=[\'"]{1,1}(.*?)[\'"]{1,1}/sim', $regs2[2][$x2], $regs3)) {
                // No text, but image with title
                $text = $regs3[1];
            } elseif (preg_match('%<span.*?class=[\'"]{1,1}hof-label[\'"]{1,1}.*?>(.*?)</span>%sim', $regs2[2][$x2], $regs3)) {
                // Text in <span class="hof-label">...</span>
                $text = $regs3[1];
            } else {
                // Plain text
                $text = $regs2[2][$x2];
            }
                echo '<a href="'.$link.'" title="'.$link.'" target="_blank">' . trim($text) . '</a><br />';
            }    
        } else {
            echo '<span style="color:red; font-weight:bold;">HREF not found<span><br />';
        }
    }
} else {
    echo '<span style="color:red; font-weight:bold;">NAV not found<span><br />';
    exit;
}
?>

Result

text: Women
link:http://www.houseoffraser.co.uk/Women%27s+Designer+Clothing/03,default,sc.html

text: Dresses
link:http://www.houseoffraser.co.uk/women%27s+designer+dresses/301,default,sc.html

[....]