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Rev

\$\begingroup\$ Welcome on Code Golf! Since files without opening tags are valid PHP files, we always count the tags in PHP (or alternatively, we count the two bytes for the -r option). But a leading ; is always shorter than a leading ?>, so don't forget it. By the way, here is a shorter code: for($a=$argv[1];$b!=$a;)$a=preg_replace('#\D#e','ord($0)-96',$b=dechex($a));echo$b; (-29 bytes). \$\endgroup\$

Blackhole
– Blackhole

2015-12-19 22:34:32 +00:00
Commented Dec 19, 2015 at 22:34
\$\begingroup\$ Input 153 should give 63, not 99. But -r is free. (see codegolf.meta.stackexchange.com/a/2428/55735) \$\endgroup\$

Titus
– Titus

2019-01-31 11:08:40 +00:00
Commented Jan 31, 2019 at 11:08

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Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
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create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>
MathJax equations \$\sin^2 \theta\$

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