Track memory usage in PHP

The memory_get_usage function can be used to track memory usage. The "malloc" function does not work on every required block, but allocates a large chunk of system memory and changes and manages environment variables internally.

The two different types of memory usage are - p>

• The memory required by the engine to the operating system (actual usage)
• The amount of memory actually used by the application (Internal usage)
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The memory usage mentioned above can be tracked using memory_get_usage(). This function returns the actual memory used as per our requirement.

For example: If we are looking at a specific piece of code, internal memory may be relevant. On the other hand, if memory usage is tracked globally, the actual usage will be more relevant.

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