public static function image($dir = null, $width = 640, $height = 480, $category = null, $fullPath = true, $randomize = true, $word = null)
{
$dir = is_null($dir) ? sys_get_temp_dir() : $dir;
// GNU/Linux / OS X / Windows compatible
// Validate directory path
if (!is_dir($dir) || !is_writable($dir)) {
throw new \InvalidArgumentException(sprintf('Cannot write to directory "%s"', $dir));
}
// Generate a random filename. Use the server address so that a file
// generated at the same time on a different server won't have a collision.
$name = md5(uniqid(empty($_SERVER['SERVER_ADDR']) ? '' : $_SERVER['SERVER_ADDR'], true));
$filename = $name . '.jpg';
$filepath = $dir . DIRECTORY_SEPARATOR . $filename;
$url = static::imageUrl($width, $height, $category, $randomize, $word);
// save file
if (function_exists('curl_exec')) {
// use cURL
$fp = fopen($filepath, 'w');
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_FILE, $fp);
$success = curl_exec($ch) && curl_getinfo($ch, CURLINFO_HTTP_CODE) === 200;
if ($success) {
fclose($fp);
} else {
unlink($filepath);
}
curl_close($ch);
} elseif (ini_get('allow_url_fopen')) {
// use remote fopen() via copy()
$success = copy($url, $filepath);
} else {
return new \RuntimeException('The image formatter downloads an image from a remote HTTP server. Therefore, it requires that PHP can request remote hosts, either via cURL or fopen()');
}
if (!$success) {
// could not contact the distant URL or HTTP error - fail silently.
return false;
}
return $fullPath ? $filepath : $filename;
}