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<?php
namespace Faker\Provider;
/**
* Depends on image generation from http://lorempixel.com/
*/
class Image extends Base
{
protected static $categories = array(
'abstract', 'animals', 'business', 'cats', 'city', 'food', 'nightlife',
'fashion', 'people', 'nature', 'sports', 'technics', 'transport'
);
/**
* Generate the URL that will return a random image
*
* Set randomize to false to remove the random GET parameter at the end of the url.
*
* @example 'http://lorempixel.com/640/480/?12345'
*
* @param integer $width
* @param integer $height
* @param string|null $category
* @param bool $randomize
* @param string|null $word
* @param bool $gray
*
* @return string
*/
public static function imageUrl($width = 640, $height = 480, $category = null, $randomize = true, $word = null, $gray = false)
{
$baseUrl = "https://lorempixel.com/";
$url = "{$width}/{$height}/";
if ($gray) {
$url = "gray/" . $url;
}
if ($category) {
if (!in_array($category, static::$categories)) {
throw new \InvalidArgumentException(sprintf('Unknown image category "%s"', $category));
}
$url .= "{$category}/";
if ($word) {
$url .= "{$word}/";
}
}
if ($randomize) {
$url .= '?' . static::randomNumber(5, true);
}
return $baseUrl . $url;
}
/**
* Download a remote random image to disk and return its location
*
* Requires curl, or allow_url_fopen to be on in php.ini.
*
* @example '/path/to/dir/13b73edae8443990be1aa8f1a483bc27.jpg'
*/
public static function image($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($ch, CURLINFO_HTTP_CODE) === 200;
fclose($fp);
curl_close($ch);
if (!$success) {
unlink($filepath);
// could not contact the distant URL or HTTP error - fail silently.
return false;
}
} 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()');
}
return $fullPath ? $filepath : $filename;
}
}
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