preg_match_all和正则表达式

Question

i have page in that approx 10-15 links are there and all links are in my control and end with some words like celebrity i want to filter all links ending with that word so i have written this

    $regex='|<a.*?href="(.*_celebrity)"|';


    preg_match_all($regex,$result21,$parts);
$links=$parts[0];
foreach($links as $link){
{
    echo $link."<br>";
    mysql_query ("INSERT INTO tablea(linkssas) VALUES ('$link')");
    }

it does the job and filters all links which is ending with _celebrity but the output is not entering in database.all links are entering in one row and it is not plain it is in the form of anchor text but i want plain links in the database as i am using foreach so all links should be entered in seperate row but all rows are entering in single row and in the form of anchor like http://xyz.com/edje/jjeieied_celebrity">A</a>

but i want only links in database

Answer 1

I felt obliged to give you the DOMDocument tour:

$d = new DOMDocument();
$d->loadHTML($result21);

$suffix = "_celebrity"; $suffix_len = strlen($suffix);

foreach ($d->getElementsByTagName('a') as $link) {
    $href = $link->getAttribute('href');
    if ($href && substr($href, -$suffix_len) === $suffix) {
        // do your insert here
    }
}

Or, using XPath instead of getElementsByTagName :

$xp = new DOMXPath($d);

foreach($xp->query('//a[substring(@href, string-length(@href) - 9) = "_celebrity"]') as $node) {
    echo $node->getAttribute('href');
}

And here's a message from our chat room:

Please, don't use mysql_* functions in new code . They are no longer maintained and are officially deprecated . See the red box ? Learn about prepared statements instead, and use PDO , or MySQLi - this article will help you decide which. If you choose PDO, here is a good tutorial .

Answer 2

You probably want to loop through $parts[1] instead of $parts[0].

http://php.net/manual/en/function.preg-match-all.php