Mastering Passthru Unveiling the Return Value Mystery in PHP

Hey, I posted the "If you are not getting any returned values" post a while ago, I thought of more options: You can use the exec() function, it ... EVERYONE needs permission to run whatever commands you are using with shell_exec(). · The Return value from shell_exec() will only be provided ... The optional output parameter is used to return the output of the command to the script. Many commands and programs use their return value to indicate whether ... The shell_exec() function returns a string or NULL value. The returned string will contain the output of the command that you executed. However, ... You do not even get the return value from passthru() ! – Michael ... php exec returning 127 because /bin/sh is getting "Permission ... I wanted to pass parameters to perl script from php and also return value from perl script to php. ... Specifically, the system, exec, and ... Try using PHP exec(); function because it returns the second two parameters by reference supplying more information and may be more useful. I need this exact information to be passed on to the browser / PHP script without any intervention. I am aware about the passthru function which ... ... return value was $return_var"; ?> public class callSMSClient{ public static void main(String[] args) { SMSClient t1 = new SMSClient(1); ... The return value is null;; The standard input of the program, stdin, is ... herong$ php -a Interactive shell php > passthru("whoami"); herong php ...