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copied!<p>First of all, be sure that you (=user under which php runs) are allowed to call the external program (OS access rights, safe_mode setting in php.ini). Then you have quite a few options in PHP to call programs via command line. The most common I use are:</p> <hr /> <p><a href="http://de.php.net/system" rel="nofollow noreferrer">system</a></p> <p>This function returns false if the command failed or the <em>last</em> line of the returned output.</p> <pre><code>$lastLine = system('...'); </code></pre> <p><a href="http://de.php.net/manual/en/function.shell-exec.php" rel="nofollow noreferrer">shell_exec</a> or <a href="http://de.php.net/manual/en/language.operators.execution.php" rel="nofollow noreferrer">backtick operators</a></p> <p>This function/operator return the whole output of the command as a string.</p> <pre><code>$output = shell_exec('...'); // or: $output = `...`; </code></pre> <p><a href="http://de.php.net/manual/en/function.exec.php" rel="nofollow noreferrer">exec</a></p> <p>This function returns the <em>last</em> line of the output of the command. But you can give it a second argument that then contains <em>all</em> lines from the command output. </p> <pre><code>$lastLine = exec('...'); // or capturing all lines from output: $lastLine = exec('...', $allLines); </code></pre> <hr /> <p>Here is the overview of all functions for these usecases: <a href="http://de.php.net/manual/en/ref.exec.php" rel="nofollow noreferrer">http://de.php.net/manual/en/ref.exec.php</a></p>

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