How can the output of an external program be captured and stored in a variable for further processing in PHP?

To capture the output of an external program in PHP, you can use the `exec()` function to execute the program and store its output in a variable. You can then further process the output as needed. 

// Command to execute an external program
$command = 'your_external_program_here';

// Capture the output of the external program
$output = exec($command);

// Further processing of the output
// For example, echoing the output
echo $output;

Keywords

exec shell_exec backticks proc_open output capture

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