How can I escape quotes on a PHP system call?

问题

I'm passing to perl from php using escapeshellarg

system("perl -e '" . escapeshellarg($inp) . "' >> /tmp/out");

And get unterminated quoted string from perl.

Input is: 'Single quoted terminated string\n';

回答1:

Please note that escapeshellarg adds the outer single quotes itself.

So you should leave them out:

system("perl -e " . escapeshellarg($inp) . " >> /tmp/out");
#              ^                            ^ no extra ' quotes here

来源：https://stackoverflow.com/questions/11331125/how-can-i-escape-quotes-on-a-php-system-call