Unlocking the Secrets of PHP Passthru A Detailed Tutorial

... php.ini to get shell_exec ... htaccess or your apache conf file. php_value disable_functions "shell_exec,exec,system,passthru,proc_open". It turns out exec, passthru and system do not permit SSH stuff. Instead you are supposed to use a prebuilt SSH system (http://php.net/manual/en/ ... first PHP script. Obviously, the sixth line is pure evil. The third line tries to intercept functions like system , exec or passthru (there ... Why are PHP exec(), shell_exec(), system() etc. insecure and should be ... passthru(), shell_exec() , and system() , the so-called Process Component ... The passthru() function runs an external program, specified in the first parameter. It prints everything output by that program to the screen. Calling exec() is usually preferred when the output of your program is irrelevant, whereas passthru() automatically prints your output. Here is both in action: passthru($cmd, $return_var); $output = ob_get_contents(); ob_end_clean ... exec() or system() - nothing was being returned. I was using the full path ... ... system") and !in_array("system",$disablefunc)) {$v ... passthru") and !in_array("passthru",$disablefunc)) {$v = @ob_get_contents ... ... exec,system,passthru,shell_exec,proc_open,popen. h@@ps://github.com/myvesta/vesta/blob/master/install/debian/10/php/php7.3-dedi.patch#L9. CALL, tested on WinXP, will be testing on more OSes right away, in PHP4 and 5, with exec, system, works with popen, and passthru. here is my lame sample ...