我使用的是图像缩略图库(Laravel的

resizer bundle),它从目录中获取jpg并使用imagesx()以不同的大小保存该图像.这在大多数情况下都可以正常工作.

问题：但有时当有一批图像需要处理时,我会收到以下错误.调试时,我做到了

....

print_r($this->image);

imagesx($this->image);

....

PHP输出

Resource id #64Resource id #67Resource id #73Resource id #76Resource id #82Resource id #85Resource id #91Resource id #94Resource id #100Resource id #103Resource id #109Resource id #112Resource id #118Resource id #121Resource id #127Resource id #130Resource id #136Resource id #139Resource id #145Resource id #148Resource id #154Resource id #157Resource id #163Resource id #166

Unhandled Exception

Message:

imagesx() expects parameter 1 to be resource, boolean given

Location:

/home/dev/public_html/bundles/resizer/resizer.php on line 69

Stack Trace:

#0 /home/dev/public_html/laravel/laravel.php(40): Laravel\Error::native(2, 'imagesx() expec...', '/home/dev/publi...', 69)

#1 [internal function]: Laravel\{closure}(2, 'imagesx() expec...', '/home/dev/publi...', 69, Array)

#2 /home/dev/public_html/bundles/resizer/resizer.php(69): imagesx(false)

#3 /home/dev/public_html/bundles/resizer/resizer.php(81): Resizer->__construct('/home/photos/pu...')

#4 /home/dev/public_html/application/controllers/crawl/cl.php(369): Resizer::open('/home/photos/pu...')

#5 /home/dev/public_html/application/controllers/crawl/cl.php(315): Crawl_CL_Controller->save_photos(Array, 2516533, '2012-09-17 18:4...')

#6 [internal function]: Crawl_CL_Controller->action_crawl_next_item()

#7 /home/dev/public_html/laravel/routing/controller.php(325): call_user_func_array(Array, Array)

#8 /home/dev/public_html/laravel/routing/controller.php(285): Laravel\Routing\Controller->response('crawl_next_item', Array)

#9 /home/dev/public_html/laravel/routing/controller.php(165): Laravel\Routing\Controller->execute('crawl_next_item', Array)

#10 /home/dev/public_html/laravel/routing/route.php(153): Laravel\Routing\Controller::call('crawl.cl@(:1)', Array)

#11 /home/dev/public_html/laravel/routing/route.php(124): Laravel\Routing\Route->response()

#12 /home/dev/public_html/laravel/laravel.php(165): Laravel\Routing\Route->call()

#13 /home/dev/public_html/public/index.php(34): require('/home/dev/publi...')

#14 {main}

与上面的堆栈跟踪一起,您可以看到$this->图像在其资源ID#166之后立即为false.

知道是什么导致了这个吗？我不明白为什么它有时可能是假的.谢谢！