Execute php script from casperjs

casper2php.js

var casp = require('casper').create({
  verbose: true,
  logLevel: 'debug'
});

casp.start().then(function() {
  var finished = false;
  var cp = require('child_process');
  cp.execFile('/usr/bin/php','test.php', {},function(_,stdout,stderr){
    console.log(stdout);
    console.log(stderr);
    finished = true;
  });
  this.waitFor(function check(){
    return finished;
  }, function then(){
    // can stay empty
  });
}).run();