PHP Execution Mastery Unlocking the Secrets of exec vs. passthru

My php.ini doesn't block exec() or shell_exec(), but yet the shell command from php doesn't execute. It works only from the terminal. If you need to execute a command and have all the data from the command passed directly back without any interference, use the passthru() function. Returns ... Hey LQ, For some reason I can't seem to get exec, passthru or system to run a specific command. It will run trivial commands such as “ls -l” ... passthru($cmd, $return_var); $output = ob_get_contents(); ob_end_clean ... To get it to work i put a sleep(5) after the exec and now shell_exec works fine. All 3 PHP functions: exec(), system() and passthru() executes an external command, but the differences are: exec(): returns the last line of ... PHP : PHP exec() vs system() vs passthru(). Uploaded by: Hey Delphi · Watch Video Download MP3 Download MP4. PHP Exec( ) Function | PHP Function. Uploaded by ... The difference between the PHP shell exec and passthru() function is that the passthru() function deals with the binary data returned by the given command ... PHP supports one execution operator: backticks (``). Note that these are not single-quotes! PHP will attempt to execute the contents of the backticks as a ... $execQuery = "echo -n test_command"; $output = shell_exec($execQuery); echo $output;. Your question doesn't show trying to capture any data. If ... Interesting. So, the differences between the fork+exec from PHP-CLI and PHP-Apache might be: 1. Higher memory footprint for Apache+PHP which ...