WeChat voting activity, a large number of people upload pictures sometimes appear missing pictures.

PHP Write activities, there are registration pages, you can upload pictures, formally on-line because at the same time too many applications, some of the registration appears missing or no pictures, but other registration information is normal, ask how to avoid this situation.

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PHP Write activities, there are registration pages, you can upload pictures, formally on-line because at the same time too many applications, some of the registration appears missing or no pictures, but other registration information is normal, ask how to avoid this situation.

Look at the bandwidth spikes ~

Is it through the implementation of the JSSDK upload? Then you need to check that the server is returned to serverId Normal, and then write an asynchronous thread to the server to pull the picture. However JSSDK , in the 2G network environment, sometimes often upload failure, need constant debugging.

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