PHP cURL vs file_get_contents

问题

How do these two pieces of code differ when accessing a REST API?

$result = file_get_contents(\'http://api.bitly.com/v3/shorten?login=user&apiKey=key&longUrl=url\');

and

$ch = curl_init(\'http://api.bitly.com/v3/shorten?login=user&apiKey=key&longUrl=url\');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);

They both produce the same result, judging by

print_r(json_decode($result))

回答1:

file_get_contents() is a simple screwdriver. Great for simple GET requests where the header, HTTP request method, timeout, cookiejar, redirects, and other important things do not matter.

fopen() with a stream context or cURL with setopt are powerdrills with every bit and option you can think of.

回答2:

In addition to this, due to some recent website hacks we had to secure our sites more. In doing so, we discovered that file_get_contents failed to work, where curl still would work.

Not 100%, but I believe that this php.ini setting may have been blocking the file_get_contents request.

; Disable allow_url_fopen for security reasons
allow_url_fopen = 0

Either way, our code now works with curl.

回答3:

This is old topic but on my last test on one my API, cURL is faster and more stable. Sometimes file_get_contents on larger request need over 5 seconds when cURL need only from 1.4 to 1.9 seconds what is double faster.

I need to add one note on this that I just send GET and recive JSON content. If you setup cURL properly, you will have a great response. Just "tell" to cURL what you need to send and what you need to recive and that's it.

On your exampe I would like to do this setup:

$ch =  curl_init('http://api.bitly.com/v3/shorten?login=user&apiKey=key&longUrl=url');
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
    curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
    curl_setopt($ch, CURLOPT_TIMEOUT, 3);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/json'));
$result = curl_exec($ch);

This request will return data in 0.01 second max

来源：https://stackoverflow.com/questions/11064980/php-curl-vs-file-get-contents

标签

php

curl

file-get-contents