Optimizing PHP Execution A Deep Dive into exec vs. passthru

escapeshellarg — Escape a string to be used as a shell argument · escapeshellcmd — Escape shell metacharacters · exec — Execute an external program · passthru — ... 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” ... Interesting. So, the differences between the fork+exec from PHP-CLI and PHP-Apache might be: 1. Higher memory footprint for Apache+PHP which ... 与exec() 类似, 唯一不同的是, 命令的所有输出返回内容都不再导入到PHP 环境, 而是直接作为输出内容, 返回到浏览器的输出上, 等效是把所有返回内容直接 ... 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. This directive allows disables certain functions. It takes on a comma-delimited list of function names. As of PHP 8.0.0, disabling a function removes it ... php system(start batFile.bat); ?> Thanks! Hiji. try passthru() gives more info & seem's better at handling such things. so first big difference between passthru() vs exec() and system() is that passthru() is pass output from the command passed directly back to ... 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 ... You can search for disable_functions and if exec is listed it means it is disabled. To enable it just remove the exec from the line and then you ...