以更快的方式在线阅读 json 文件 php

Question

I am using file_get_contents to read online json URL and i don't have cURL installed any advised how to make my request faster

Thanks, Mariana

Answer 1

Do Some simple benchmarking:

<?php
$start = microtime(true);
for ($i=0;$i<=10;$i++){
    $handle = fopen("http://example.com/", "r");
    while (!feof($handle)) {
        $result .= fread($handle, 1024);
    }
    fclose($handle);
}
$end = microtime(true);
$time = $end - $start;

echo "Did fopen test in $time seconds<br />\n";
?> 

Did fopen test in 6.1602981090546 seconds

<?php
//file_get_contents is basically a wrapper for the above fopen so hence not much of a difference
$start = microtime(true);
for ($i=0;$i<=10;$i++){
    $result = file_get_contents('http://example.com');
}
$end = microtime(true);
$time = $end - $start;

echo "Did file_get_contents test in $time seconds<br />\n";
?>

Did file_get_contents test in 6.5289459228516 seconds

<?php
$start = microtime(true);
for ($i=0;$i<=10;$i++){
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://example.com");
    curl_setopt($ch, CURLOPT_HEADER, 0);
    $result = curl_exec($ch);
}
$end = microtime(true);
$time = $end - $start;

echo "Did cUrl test in $time seconds<br />\n";
?>

Did cUrl test in 2.9657130241394 seconds

cURL wins hands down... time to look for a better host

Answer 2

Either way sould be fast.
http://www.ebrueggeman.com/blog/php_benchmarking_fopen

Theres not better.

Answer 3

There is not really a way to make your request faster. What you can do is cache the data locally if it does not change a lot.

Pseudocode:

if (get_modification_time_of_file('cached.json') < time() - 300) {
    download_file()
} else {
    read_locally()
}

Answer 4

You have 2 options.

1: By using the fopen/file_get_contents function(s)

2: By setting a client side bridge and sending it to php via a POST method using AJAX. then get it on the PHP using json_decode.