Harness the Power of PHP Execute External Commands with Passthru

The standard output of the program, $output, is shared with the calling script. ... herong$ php -a Interactive shell php > passthru("whoami"); herong php ... By setting the Content-type to image/gif and then calling a pbmplus program to output a gif, you can create PHP scripts that output images directly. shell_exec() executes a command in a shell and returns the output as a string. ... passthru() · fpassthru() · popen() · pclose() · escapeshellcmd(). Print this ... The passthru() function is similar to the exec() function in that it executes a command. This function should be used in place of exec() or system() It runs the external program specified in the first parameter and prints out all the output it generates. Also, it sends the raw output from ... ... output buffer after each line of output. The latter function returns the last line of command output. RESETRUNFULL # For shell_exec to output the result you need to echo it # Exec() does ...