Its All About The Goto

on YouTube ↗01h 00m

" summary

Shows exactly how PHP transforms code: tokenizer → AST → opcodes → execution, and why control flow becomes jumps. Demonstrates concrete numbers: 500 parser states and four opcodes for a simple constructor, explains opcode formats and conditional jumps, and shows tooling and outputs with VLD and PHP‑ast extensions. Covers optimizations (OPcache removes dead code), branch analysis, and the exponential pulse problem (two ifs produce four execution pulses).

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" chapters (32)

1. 0:00Introduction
2. 0:44Who am I
3. 1:18Lets get started
4. 1:39Parse
5. 2:26tokenize
6. 2:42initial
7. 4:18example script
8. 4:44tokenizer
9. 6:21language parson
10. 6:34tables of numbers
11. 7:42scanner rules
12. 10:36scanner AST
13. 10:49mope
14. 12:42SCParse
15. 15:09ASP Assignment
16. 16:26Conversion
17. 16:47bytecode
18. 25:08jump
19. 25:45if statement
20. 27:42jump instructions
21. 28:57rings
22. 29:28for loop
23. 32:52while loop
24. 38:50complex loops
25. 40:39complex loops graph
26. 42:21exceptions
27. 45:23code analysis
28. 46:55branch analysis
29. 48:57branch analysis output
30. 52:08recap
31. 56:49code coverage
32. 58:24token yield

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