parsing multiple urls from the form - php

Question

I'm trying to make a script, which search the list of urls given in the form for the email adresses. Could anyone advice me how to do it? Is there some alternative to cURL?
I tried to make it with file_get_contents, but the script analyze only the last url given in the form: when I enter for example two urls to the form, the first "print_r("show current_url:". $current_url); is empty and for the second it shows the page(url) content(without pictures).
I asked on different forums, but received no answer. Will really appraciate your help.
Thank you
$urls = explode("\n", $_POST['urls']);
$db = new mysqli('localhost', 'root', 'root', 'urls');
if (mysqli_connect_errno()) {
echo 'Błąd: ';
exit;
}
for ($i=0; $i<count($urls); $i++){
print_r("show link:". $urls[$i]."<br>");
$current_url = file_get_contents($urls[$i]);
print_r("show current_url:". $current_url);
preg_match( "/[\._a-zA-Z0-9-]+#[\._a-zA-Z0-9-]+/i", $current_url, $email);//email
print_r ("show email:".$email[0]);
$query = "INSERT INTO urle set adres = '$email[0]' ";
$result = $db->query($query);
}
if ($query) {
echo $db->affected_rows ."pozycji dodano.";
} else {
echo mysql_errno() . ":" . mysql_error() . "Wystąpił błąd przy dodawaniu urli ";
}
$db->close();
?>
EDIT:
I have tried with curl. var_dump($email); shows: array(0) { }
The script displays now all of the urls given in the form in the browser, but preg_match doesn't work, so it doesn't extract email adresses.
<?php
$urls = explode("\n", $_POST['urls']);
$db = new mysqli('localhost', 'root', 'root', 'linki');
if (mysqli_connect_errno()) {
echo 'Błąd: ';
exit;
}
for ($i=0; $i<count($urls); $i++){
$url = $urls[$i];
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_URL, $url);
$output = curl_exec($ch);
preg_match( "/[\._a-zA-Z0-9-]+#[\._a-zA-Z0-9-]+/i", $output, $email);//email
var_dump($email);
$query = "INSERT INTO urle set adres = '$email[0]' ";
$result = $db->query($query);
curl_close($ch);
}//
if ($result) {
echo $db->affected_rows ."pozycji dodano.";
} else {
echo mysql_errno() . ":" . mysql_error() . "Wystąpił błąd przy dodawaniu urli ";
}
$db->close();
?>

Answer 1

Is there some alternative to cURL?
file_get_contents, which doesn't give you any error messages (unless error_reporting is raised), and which is often blocked unless ini_set("user_agent", ...) was set.
Alternatively HttpRequest on newer PHP installations.
Still curl is not difficult to use. The manual is full of examples.
the first "print_r("show current_url:". $current_url); is empty
Nobody can tell. It's your duty to debug that (especially since you haven't mentioned the affected url in your question). Use curl or httprequest.

Answer 2

Ok, i've fixed it!!!:)
Here is the code:
for ($i=0; $i<count($linki); $i++){
$url = $linki[$i];
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$result =curl_exec($ch);
curl_close($ch);
preg_match("/[-a-z0-9\._]+#[-a-z0-9\._]+\.[a-z]{2,4}/", $result, $email);//email
print_r($email);
$zapytanie = "INSERT INTO urle set adres = '$email[0]' ";
$wynik = $db->query($zapytanie);
}