107 lines
3.6 KiB
PHP
107 lines
3.6 KiB
PHP
<?php
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namespace Siteworx\Faker\Provider;
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/**
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* Depends on image generation from http://lorempixel.com/
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*/
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class Image extends Base
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{
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protected static $categories = array(
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'abstract', 'animals', 'business', 'cats', 'city', 'food', 'nightlife',
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'fashion', 'people', 'nature', 'sports', 'technics', 'transport'
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);
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/**
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* Generate the URL that will return a random image
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*
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* Set randomize to false to remove the random GET parameter at the end of the url.
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*
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* @example 'http://lorempixel.com/640/480/?12345'
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*
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* @param integer $width
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* @param integer $height
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* @param string|null $category
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* @param bool $randomize
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* @param string|null $word
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* @param bool $gray
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*
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* @return string
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*/
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public static function imageUrl($width = 640, $height = 480, $category = null, $randomize = true, $word = null, $gray = false)
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{
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$baseUrl = "https://lorempixel.com/";
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$url = "{$width}/{$height}/";
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if ($gray) {
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$url = "gray/" . $url;
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}
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if ($category) {
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if (!in_array($category, static::$categories)) {
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throw new \InvalidArgumentException(sprintf('Unknown image category "%s"', $category));
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}
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$url .= "{$category}/";
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if ($word) {
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$url .= "{$word}/";
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}
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}
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if ($randomize) {
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$url .= '?' . static::randomNumber(5, true);
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}
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return $baseUrl . $url;
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}
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/**
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* Download a remote random image to disk and return its location
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*
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* Requires curl, or allow_url_fopen to be on in php.ini.
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*
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* @example '/path/to/dir/13b73edae8443990be1aa8f1a483bc27.jpg'
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*/
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public static function image($dir = null, $width = 640, $height = 480, $category = null, $fullPath = true, $randomize = true, $word = null, $gray = false)
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{
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$dir = is_null($dir) ? sys_get_temp_dir() : $dir; // GNU/Linux / OS X / Windows compatible
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// Validate directory path
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if (!is_dir($dir) || !is_writable($dir)) {
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throw new \InvalidArgumentException(sprintf('Cannot write to directory "%s"', $dir));
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}
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// Generate a random filename. Use the server address so that a file
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// generated at the same time on a different server won't have a collision.
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$name = md5(uniqid(empty($_SERVER['SERVER_ADDR']) ? '' : $_SERVER['SERVER_ADDR'], true));
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$filename = $name . '.jpg';
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$filepath = $dir . DIRECTORY_SEPARATOR . $filename;
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$url = static::imageUrl($width, $height, $category, $randomize, $word, $gray);
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// save file
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if (function_exists('curl_exec')) {
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// use cURL
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$fp = fopen($filepath, 'w');
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$ch = curl_init($url);
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curl_setopt($ch, CURLOPT_FILE, $fp);
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$success = curl_exec($ch) && curl_getinfo($ch, CURLINFO_HTTP_CODE) === 200;
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fclose($fp);
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curl_close($ch);
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if (!$success) {
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unlink($filepath);
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// could not contact the distant URL or HTTP error - fail silently.
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return false;
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}
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} elseif (ini_get('allow_url_fopen')) {
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// use remote fopen() via copy()
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$success = copy($url, $filepath);
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} else {
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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()');
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}
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return $fullPath ? $filepath : $filename;
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}
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}
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