PHP file_get_contents foreach - php

Question

I've found an existing script on the internet that grabs data from WHOIS servers and extracts the relevent data (Eg. Expiry date, Status). As it was long abandoned I have been modifying it and created my own script.php?id=domain.com which lets me enter any domain and whois data comes up,
What I'm having trouble with is I have my whois.php file which I want to grab a list of domains out of my MySQL database and attempt to extract the Expiry/Status data of each domain using (file_get_contents to my script.php and foreach) then update the database with the relevant information.
I'm fairly certain I have coded everything apart from the "Foreach" & "File_get_contents" part right therefore my script encounters errors.
"Warning: Invalid argument supplied for foreach() in /home/user/public_html/mydomain.com/domains/whois.php on line 39"
is the error I receive.
Snippet of my whois.php:
include("database.php");
// Select one domain from the database that hasn't been checked yet
$sql = "SELECT domainName from domains WHERE 1 ORDER BY lastChecked ASC";
$result = mysql_query($sql);
$row = mysql_fetch_row($result);
$domain = $row[0];
if(mysql_num_rows($result) == 0){
die("No domains found in the database.");
}
// Grab the WHOIS information for the domain selected
// ---------------------------------------------------------------
$domainExt = substr($domain, -3); // grab the domain extension
//var_dump($whois);
$arr = array($content);
foreach($arr as $id) {
echo $id, '<br>';
$data = file_get_contents('http://codestrike.net/domains/script.php?id='.$domain.'');
echo $data, '<br>';
}
foreach($data as $whoisline){
if(strstr($whoisline,"Expiration")){
$whoisline = str_replace("Expire Date:","",$whoisline);
$whoisline = trim($whoisline);
$expiration = substr($whoisline,0,11);
}
if(strstr($whoisline,"Status")){
$statusline = $whoisline;
}
}
$status = str_replace("Status:","",$statusline);
$status = trim($status);
Script.php?id=domain.com works fine, its just a matter of having the whois.php finding the expiry date/status for each domain out of my MySQL Database.
Cheers.

Answer 1

Change:
$data = file_get_contents('http://mydomain.com/domains/script.php?id='.$domain.'');
to:
$data = file('http://mydomain.com/domains/script.php?id='.$domain);
file_get_contents returns the entire file as a single string. file splits it up into an array, where each element is a line of the file.
You also need to process $data in the first foreach loop. Otherwise, you're just overwriting $data each time through the loop, and the code that uses it just gets the last one.
include("database.php");
// Select one domain from the database that hasn't been checked yet
$sql = "SELECT domainName from domains WHERE 1 ORDER BY lastChecked ASC";
$result = mysql_query($sql);
$row = mysql_fetch_row($result);
$domain = $row[0];
if(mysql_num_rows($result) == 0){
die("No domains found in the database.");
}
// Grab the WHOIS information for the domain selected
// ---------------------------------------------------------------
$domainExt = substr($domain, -3); // grab the domain extension
//var_dump($whois);
$arr = array($content);
foreach($arr as $id) {
echo $id, '<br>';
$data = file('http://mydomain.com/domains/script.php?id='.$domain);
var_dump($data); echo '<br>';
foreach($data as $whoisline){
if(strstr($whoisline,"Expiration")){
$whoisline = str_replace("Expire Date:","",$whoisline);
$whoisline = trim($whoisline);
$expiration = substr($whoisline,0,11);
}
if(strstr($whoisline,"Status")){
$statusline = $whoisline;
}
}
$status = str_replace("Status:","",$statusline);
$status = trim($status);
}