Can I get internal_function's opcode by using vld?

[Porlockzzz]

Dear Derick,

I'm interested in how some PHP internal functions work, and I want to know if I can get the opcode of PHP internal functions through vld?

At present, I can only get the opcode of user-defined functions through vld. If it can't be obtained through vld, do you know any other way to get it?

Best wishes!

[derickr]

On Sat, 20 May 2023, DuckYellow wrote: I'm interested in how some PHP internal functions work, and I want to know if I can get the opcode of PHP internal functions through vld? At present, I can only get the opcode of user-defined functions through vld. If it can't be obtained through vld, do you know any other way to get it?

Only user land functions (written in PHP) will have opcodes. Internal functions are written in C, and hence don't have them. And therefore VLD can't show them. You can find the implementation of internal functions by searching for "PHP_FUNCTION" in the PHP source code. cheers, Derick

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[Porlockzzz]

Thanks!