Been a while. Have a simple one – what does this print?
$arr[null] = "Null string"; $arr[false] = "False string"; $arr[0] = "Zero string"; print_r($arr);
Archive for the ‘Ugly Implementation’ Category
You make this all go away
Friday, December 17th, 2010Just when everything was making sense
Wednesday, January 20th, 2010Okay, let’s say you managed to ensure that your program doesn’t exhaust the heap with anonymous functions, and that you understand the edge cases involved in function-type variables. There are still lots of ways for create_function to bite you in the glutes.
Did you think I wouldn’t recognize this compromise
Saturday, January 16th, 2010My purity you stole
Thursday, January 14th, 2010Yesterday, I wrote about how $f() variable-function syntax works in PHP. While it is pretty bad, it’s also the groundwork for understanding the ways in which create_function is terrible.
No, I mean besides taking a string full of code as one of its arguments.
I decided I was never coming down
Tuesday, January 12th, 2010I’m still sick, so you get another easy target today. It’s trivially easy to kill the PHP interpreter, dead, without invoking any extensions or unusual language features:
1 2 3 4 5 6 7 8 9 | < ?php function recurse($n) { if ($n <= 0) return; return recurse($n - 1); } recurse(100000); /* You may need to adjust this upwards. */ ?> |
I really don’t know what you mean
Monday, January 11th, 2010It’s Monday, and I’m sick, so you get some low-hanging fruit today. The following snippet produces a syntax error in PHP:
1 2 3 4 5 6 7 | < ?php function monolithic_dimensions() { return array(1, 4, 9); } print monolithic_dimensions()[0]; // syntax error, unexpected '[' ?> |