What do you get for ...

Hi. What do you get for ... php -r "var_dump(realpath(null));" I'm wondering if the result should be a boolean false. But I'm getting very different results for different versions of PHP for Windows. For PHP5+ (upto lastest 5.3.7-dev), the output is always the same as getcwd() For PHP4, some very interesting differences ... V4.0.0 : string(5) "Z:\\/" V4.0.1 : string(5) "z:\\/" V4.0.1pl1 : string(5) "z:\\/" V4.0.2 : bool(false) V4.0.3 : bool(false) V4.0.4 : string(3) "z:\" V4.0.4pl1 : string(3) "z:\" V4.0.5 : string(3) "z:\" V4.0.6 : string(3) "z:\" V4.1.0 : string(3) "z:\" V4.1.1 : string(3) "z:\" V4.1.2 : string(3) "z:\" V4.2.0 : string(98) "D:\Personal Files\Downloads\Software\Programming\PHP\Official Releases\PHP4.x.x\PHP4.2.x\php-4.2.0" V4.2.1 : string(3) "z:\" V4.2.2 : string(3) "z:\" V4.2.3 : string(3) "z:\" V4.2.3RC1 : string(3) "z:\" V4.2.3RC2 : string(3) "z:\" V4.3.0 : string(3) "z:\" V4.3.0pre2 : string(102) "D:\Personal Files\Downloads\Software\Programming\PHP\Official Releases\PHP4.x.x\PHP4.3.x\php-4.3.0pre2" V4.3.0RC1 : string(101) "D:\Personal Files\Downloads\Software\Programming\PHP\Official Releases\PHP4.x.x\PHP4.3.x\php-4.3.0RC1" V4.3.0RC2 : string(101) "D:\Personal Files\Downloads\Software\Programming\PHP\Official Releases\PHP4.x.x\PHP4.3.x\php-4.3.0RC2" V4.3.0RC3 : string(101) "D:\Personal Files\Downloads\Software\Programming\PHP\Official Releases\PHP4.x.x\PHP4.3.x\php-4.3.0RC3" V4.3.0RC4 : string(3) "z:\" V4.3.1 : string(3) "z:\" V4.3.10 : string(3) "z:\" V4.3.11 : string(3) "z:\" V4.3.2 : string(3) "z:\" V4.3.2RC1 : string(3) "z:\" V4.3.2RC2 : string(3) "z:\" V4.3.2RC3 : string(3) "z:\" V4.3.3 : string(3) "z:\" V4.3.3RC1 : string(3) "z:\" V4.3.3RC2 : string(3) "z:\" V4.3.3RC3 : string(3) "z:\" V4.3.3RC4 : string(3) "z:\" V4.3.4 : string(3) "z:\" V4.3.4RC1 : string(3) "z:\" V4.3.4RC2 : string(3) "z:\" V4.3.4RC3 : string(3) "z:\" V4.3.5 : string(3) "z:\" V4.3.5RC1 : string(3) "z:\" V4.3.5RC2 : string(3) "z:\" V4.3.5RC3 : string(3) "z:\" V4.3.5RC4 : string(3) "z:\" V4.3.6 : string(3) "z:\" V4.3.6RC1 : string(3) "z:\" V4.3.6RC2 : string(3) "z:\" V4.3.6RC3 : string(3) "z:\" V4.3.7 : string(3) "z:\" V4.3.7RC1 : string(3) "z:\" V4.3.8 : string(3) "z:\" V4.3.9 : string(3) "z:\" V4.3.9RC1 : string(3) "z:\" V4.4.0 : string(3) "z:\" V4.4.1 : string(3) "z:\" V4.4.2 : string(3) "z:\" V4.4.3 : string(3) "z:\" V4.4.4 : string(3) "z:\" V4.4.5 : string(3) "z:\" V4.4.6 : string(3) "z:\" V4.4.7 : string(3) "z:\" V4.4.8 : string(3) "z:\" V4.4.9 : string(3) "z:\" Z:\ is essentially the equivalent of __DIR__ in this example. What output do you get on non Windows setups? php -r "var_dump(realpath(null));" If the current releases on other OS's all have output equivalent to getcwd(), then I'll change the documentation to at least mention that a null or empty path equates to the current working directory for V5+. Richard. -- Richard Quadling Twitter : EE : Zend : PHPDoc @RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY : bit.ly/lFnVea