fix signed/unsigned mismatch warnings
fix signed/unsigned mismatch
fix printf fmt
avoid strlen() usage in the loop
reduce struct size by 8 byte on 64 bit
reduce the struct size by 8 byte on 64 bit
reduce struct size by 8 byte on 64 bit
improve empty string check
reduce struct size by 8 byte on 64 bit
Optimized enterance into functions
Merge branch 'master' of git://github.com/php/php-src