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PHP Fatal error: Allowed memory size of 209715200 bytes exhausted (tried to allocate 4294967296 bytes) in /var/www/html .
This can happen for various reasons like a loop in your query function or your column type in mysql table is longtext or any other kind of data which needs more memory to hold the data while running query . To fix this ,
- 1. First try to optimise your query and check for any loop creating functions .
- 2. If you are sure that it is not any loop in function then try to increase memory allocation for PHP by adding line ini_set(“memory_limit”,”16M“); in your php script file .
- instead you can also add memory limit in php.ini file by adding a line memory_limit=16M which will affect all php scripts .
- 3. If your my sql column data type is largetext it require 4294967296 bytes (4GB) memory so instead of increasing memory can change data type to something like
MEDIUMTEXT which requires only 16 MB.
You can change existing mysql column data type with this query
ALTER TABLE your_table MODIFY existing_column MEDIUMTEXT;