从PHP脚本调用时，CasperJS在Cron中不起作用

Question

As a test, I have the following PHP sript:

<?php
  print shell_exec("/usr/local/bin/casperjs test.js --ssl-protocol=any --verbose");
?>

The casperjs script is the following:

var casper = require('casper').create();

casper.start('http://casperjs.org/', function() {
    this.echo(this.getTitle());
});

casper.thenOpen('http://phantomjs.org', function() {
    this.echo(this.getTitle());
});

casper.run();

I would expect an output like:

CasperJS, a navigation scripting and testing utility for PhantomJS and SlimerJS
PhantomJS | PhantomJS

This actually works fine in commandline. However, I need to run a PHP script that calls a CasperJS script in a Cronjob.

PHANTOMJS_EXECUTABLE=/usr/local/bin/phantomjs php /path/to/file/test.php

Somehow, when I do that, I get the following error:

File "/usr/local/bin/casperjs", line 138
except OSError as err:
                ^
SyntaxError: invalid syntax
X-Powered-By: PHP/5.4.21
Content-type: text/html

I have tried to set the environment variable for PhantomJS, but it does not help. I stripped down my own script to the above to ensure that this error has nothing to do with my own coding.

Anybody any idea how to get CasperJS working in a PHP script from a Cronjob?

BTW: I use CentOS.

Answer 1

I have seen the same error, because my machine has installed some versions of python. So you should install python 2.6+ or edit /usr/local/bin/casperjs . Thanks

from

OSError as err:

to

OSError, err:

Python try...except comma vs 'as' in except