Hello!
After hours of debugging I managed to get the reason for a weird issue we are having.
On one of our production servers everything is fine: We run ACF PRO 5.6.
When we open our option fields, a specific option is of type “flexible content”.
When we migrate that page to our dev server, this type is suddenly switching to “text”, which leads to a total loss of content.
The reason for this is that we run PHP 32-bit on our dev server and PHP 64-bit on our prod server.
ACF gives keys to the fields that look like this:
5a04216891c0c
5a0d7af318fa6
56dfe684f1e15
…
Unfortunately one field looks like this:
5717898394373
Which leads to a serialzed form of:
i:5717898394373
When unserializing on a 32-bit machine, this fails.
This is a critical bug and I we have to take the following steps to prevent that:
– Prevent keys which only consist of integers
– Find a strategy to handle already existing keys
Let me know what you think about this.
