Sometimes you need to run a simple perl script, but your webhosting is configured to look for index.php only. Here is the way to get it through:
Edit index.php
<?php
foreach ($_SERVER as $key => $value) { putenv("$key=$value"); }
foreach ($_GET as $key => $value) { putenv("GET_$key=".escapeshellarg($value)); }
foreach ($_POST as $key => $value) { putenv("POST_$key=".escapeshellarg($value)); }
echo shell_exec('perl index.pl 2>&1');
Create your index.pl
#!/usr/bin/perl
use Data::Dumper; $Data::Dumper::Sortkeys = 1;
print "Done.\n";
print Dumper( \@INC );
print Dumper( \%ENV );
Conclusion
All $_GET variables will be in GET_xxx environment variables.
All $_POST variables will be in POST_xxx environment variables.
ALL $_SERVER variables will be set as CGI environment variables.
This is 'out of head' document. It should be tested.
That's all.