Using Multiple page.open in Single Script

Question

My goal is to execute PhantomJS by using:

// adding $op and $er for debugging purposes
exec(\'phantomjs script.js\', $op, $er);
print_r($op);
echo $er;
         


        

Answer 1

Using Queued Processes, sample:

var page = require('webpage').create();

// Queue Class Helper
var Queue = function() {
    this._tasks = [];
};
Queue.prototype.add = function(fn, scope) {
    this._tasks.push({fn: fn,scope: scope});
    return this;
};
Queue.prototype.process = function() {
    var proxy, self = this;
    task = this._tasks.shift();
    if(!task) {return;}
    proxy = {end: function() {self.process();}};
    task.fn.call(task.scope, proxy);
    return this;        
};
Queue.prototype.clear = function() {
    this._tasks = []; return this;
};

// Init pages .....  
var q = new Queue();       

q.add(function(proxy) {
  page.open(url1, function() {
    // page.evaluate
    proxy.end();
  });            
});

q.add(function(proxy) {
  page.open(url2, function() {
    // page.evaluate
    proxy.end();
  });            
});


q.add(function(proxy) {
  page.open(urln, function() {
    // page.evaluate
    proxy.end();
  });            
});

// .....

q.add(function(proxy) {
  phantom.exit()
  proxy.end();
});

q.process();

I hope this is useful, regards.