Mastering Passthru A Comprehensive Guide to Output Interception in PHP

I also then went to create a php file with just this in . The passthru() function runs an external program, specified in the first parameter. It prints everything output by that program to the screen. Similarly, if you pass a second parameter to passthru() , it will be filled with the return value of the command. For example: exec("dir", $output, $return); ... [exec() returns] The last line from the result of the command. If you need to execute a command and have all the data from the command passed ... PHP's documentation page on shell_exec() has comments that address your issues. Basically the issue is that shell_exec only saves the output ... . $_GET['modifiers']; $output = exec($command);. Which would, of course, produce the exact same result (since the value of $command would be “ls ... 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() // we'll execute a php script as an example: $out = shell_exec("php test.php 2> output"); print $out ? $out : join("", ...