saving images

[lucilue2003]

I have $html which is an entire html page.
I want to know is there a way for me to check if the <img src = name already exists in my server and if not, then go out and save it ?

Basically i'm looking for a function that will allow me to give it a url and it will go out and copy that image and save it my directory with the same directory name and stuff/

Thanks.

[vaaaska]

I don't have a function for you bit it's possible.

You could use a preg_match_all to put all your <img * /> tags from $html into an array. From there, if I'm reading your instructions correctly, you would want to go through each string, pull out the file name and then compare it (in_array from the database) and either add it to the db or not.

That's a crude explanation and I'm sure somebody will come along and give a better one. Certainly doable.

Good luck...v

[tsinka]

Hi,

here is an example using preg_match:

<?PHP
  $a1 = "<img src=\\"aaaa.gif\\"><img src='bbbb.gif'><img src=cccc.gif><img src=  dddd.gif >";
  $match = preg_match_all("§<img src=[\\s\\"']*?([^\\s\\"'>]*?)§Usi",$a1,$matches);
  print_r($matches);
?>

Thomas

[drawmack]

then just [man]curl[/man] the image provided by the above code.

[lucilue2003]

I tried curl, but had an error:

$site = curl_init ("http://www.mysite.com/images/Logo.gif");
$fp = fopen ("Logo.gif", "w");

curl_setopt ($site, CURLOPT_FILE, $fp);
curl_setopt ($site, CURLOPT_HEADER, 0);

curl_exec ($site);
curl_close ($site);
fclose ($fp);

and yes i gave it permission.

thanks

[Weedpacket]

Originally posted by lucilue2003
I tried curl, but had an error:

It would be helpful if we knew what the error was, and what you did to try and fix it.

[lucilue2003]

it works. the problem was permission on the file and the folder.
my output, however, is not in proper format.

$match = preg_match_all("§<img src=[\s\"']?([^\s\"'>]?)§Usi",$new_string,$matches);

$match = preg_match_all("§<img src=[\s\"']?([^\s\"'>]?)§Usi",$new_string,$matches);

for ($i=0; $i< count($matches[0]); $i++) {
echo str_replace("<img src=\"","",$matches[0][$i]);
echo "<br>";
}

I've done that, but it seems like it is printing the same thing repeatedly twice. ( and no, i' dont have the same image listed twice.)

thanks.

[tsinka]

Hi,

use print_r($matches) to check the structure of the matches array. You'll see that $matches[0] contains the strings that match the full pattern and $matches[1] contains the filenames itself.

<?PHP
$match = preg_match_all("§<img src=[\\s\\"']*?([^\\s\\"'>]*?)§Usi",$new_string,$matches); 

for ($i=0; $i< count($matches[1]); $i++) { 
echo "{$matches[1][$i]}<br>"; 
} 
?>

Please post an example HTML code if that doesn't work so I can check how to improve the pattern.

About $matches:

If you have a pattern with parenthesized (...) subpatterns then $matches[0] contains an array of strings that matched the complete pattern, $matches[1] contains an array of strings matched by the first parenthesized subpattern, $matches[2] contains an array of strings matched by the second parenthesized subpattern and so on.

$matches[1][$n],$matches[2][$n] and so on are substrings of $matches[0][$n]

Thomas