Why Does My PHP Code Exhaust Memory When Transferring Sales Data, Even After Increasing `memory_limit`?

Understanding "Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted"

Problem:

When transmitting a large amount of sales data (around 50 sales and associated items) from a client PHPPOS system to a centralized CodeIgniter database, the process encounters the following error: "Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 54 bytes)." Despite increasing the memory limit in php.ini, the issue persists.

Answer:

Simply increasing the memory_limit to an excessively high value (-1) is not a recommended solution. It masks the underlying problem by allowing the server to use excessive memory, potentially leading to stability issues and memory leakage.

Recommended Approach:

To resolve this error effectively, it is crucial to identify and address the root cause of the memory exhaustion. Analyze your PHP code for potential memory leaks that may be causing the issue. Use tools like Xdebug or Memory Profiling to track down the offending code and optimize it to prevent excessive memory consumption.

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