25 Years of PHP

Etsy Brooklyn July 18, 2019 http://talks.php.net/etsy_interns19 Rasmus Lerdorf @rasmus 1980s 1990s 1993 #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <string.h> #define ishex(x) (((x) >= '0' && (x) <= '9') || ((x) >= 'a' && \ (x) <= 'f') || ((x) >= 'A' && (x) <= 'F')) int htoi(char *s) { int value; char c; c = s[0]; if(isupper(c)) c = tolower(c); value=(c >= '0' && c <= '9' ?