致命错误：分配较少时，PHP中允许的内存大小

Question

I'm getting this:

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 4981690 bytes) in...

That seems a bit odd! From what I can read, it shouldn't happen should it? Isn't meant' to be the other way around. I'm already using a stupidly large memory_limit

Answer 1

It doesn't attempt to allocate it all at once. Let's say our limit is 10 bytes. It will allocate 3, 3, 3 and another 3 - boom: throws the error:

Allowed memory size of 10 bytes exhausted (tried to allocate 3 bytes) in..