How can one optimize the performance when using Perl scripts in PHP?

When using Perl scripts in PHP, one way to optimize performance is to cache the output of the Perl script so that it doesn't have to be re-run every time the PHP script is executed. This can be done by storing the output in a file or a database and checking if it exists before running the Perl script again. 

<?php
$cache_file = 'perl_output.cache';
if (file_exists($cache_file)) {
    $output = file_get_contents($cache_file);
} else {
    $output = shell_exec('perl script.pl');
    file_put_contents($cache_file, $output);
}

echo $output;
?>

Keywords

Perl scripts performance optimization PHP caching profiling

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