php – imagesx()期望参数1是资源,给定布尔值

2023年12月4日 287次阅读

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！

最佳答案 发生这种情况是因为该文件的mime类型未被识别或不是jpg / jpeg / png / gif.

在resizer.php的第196行,$this->图像被设置为false.

如果你无法让它工作,请在Github上创建一个问题,以便我可以跟进:-)

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