I am generating dynamic URLs of images for book ISBNs. I need a reliable way with PHP to check whether the images actually exist at the remote url. I tried various approaches with different PHP libraries, curl, etc., but none of them works well, some of them are downright slow. Given the fact that I need to generate (and check!) about 60 URLS for each book in my database, this is a huge waiting time. Any clues?
9 Answers
It's probably moot at this point, but this works for me:
function is_webfile($webfile)
{
$fp = @fopen($webfile, "r");
if ($fp !== false)
fclose($fp);
return($fp);
}
Solution from https://www.experts-exchange.com
<?php
function url_exists($url) {
if (!$fp = curl_init($url)) return false;
return true;
}
?>
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