Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
266 views
in Technique[技术] by (71.8m points)

php - Is there a JavaScript way to do file_get_contents()?

Here is the PHP documentation

Here is how I would use it in an Ajax call, if I don't find a pure client way to do this.

$homepage = file_get_contents('http://www.example.com/');
echo $homepage;

Is there way to do this client side instead so I don't have to ajax the string over?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

JavaScript cannot go out and scrape data off of pages. It can make a call to a local PHP script that then goes on its behalf and grabs the data, but JavaScript (in the browser) cannot do this.

$.post("/localScript.php", { srcToGet: 'http://example.com' }, function(data){
  /* From within here, data is whatever your local script sent back to us */
});

You have options like JSONP and Cross-Origin Resource Sharing at your disposal, but both of those require setting up the other end, so you cannot just choose a domain and start firing off requests for data.

Further Reading: Same origin policy


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

2.1m questions

2.1m answers

60 comments

57.0k users

...