What is the best way to pass a file path as a parameter to an external C program using PHP?

When passing a file path as a parameter to an external C program using PHP, it is important to properly escape the file path to prevent any security vulnerabilities or errors due to special characters in the path. One way to achieve this is by using the escapeshellarg() function in PHP, which will properly escape the file path for use as a command-line argument. 

<?php
// File path to pass as a parameter
$file_path = '/path/to/file.txt';

// Escape the file path using escapeshellarg()
$escaped_file_path = escapeshellarg($file_path);

// Command to execute the external C program with the file path parameter
$command = '/path/to/external_program ' . $escaped_file_path;

// Execute the command
$output = shell_exec($command);

// Output any results from the external program
echo $output;
?>

Keywords

file path parameter external C program PHP function

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