log is non-monotonous in PHP and Lua

TL;DR

PHP exhibits non-monotonous behavior in logarithmic calculations under specific conditions, leading to unexpected results. This can cause assertions about numerical comparisons to fail in rare cases.

Key Takeaways

• Be cautious with floating-point comparisons in PHP.
• Test edge cases involving logarithmic functions.
• Use precise numerical values to avoid unexpected results.
• Review assertions in your code for potential failures.