PHP CLI内存不足

Question

I'm trying to reserialize a 1gb sql dump using the fix-serialization.php file from https://github.com/Blogestudio/Fix-Serialization/blob/master/fix-serialization.php

with this command:

php -d memory_limit=-1 fix-serialization.php dump.sql 

But I get the following error

PHP Fatal error:  Out of memory (allocated 2328100864) (tried to allocate 18446744071742389167 bytes) 

I get the same error with when I try:

php -d memory_limit=2000M fix-serialization.php dump.sql 

Obviously my computer does not have 18446744071 GB of ram. I'm getting this error on both a MBP and my Ubuntu machine and I've tried running this script on php5.6 and 7

Answer 1

Looks like you shoud make your own solution. This script won't fit since it reads the whole file at once and then passes the whole file to the preg_replace . That regex is quite complex, so it needs a lot of memory for processing such big strings. You should read one data line , then proccess that line and write it to the output file. Open input file for reading, and output file for writing, so the data won't get corrupted.