file_get_contents with spaces in URL

问题

I have an issue where even if I replace the spaces to %20 and get this content the ultimate url the browser gets turns the "%20" into "%2520"

Here's my code, any suggestions to get this to work? it seems easy but I'm stuck :/

<?php
//$_GET['song'] will contain a song name with spaces
$song = str_replace(array("%20", "&", "?" , "/"), array(" ", "", "", ""), $_GET['song']);

// I use this to check how the GET 'song' looks after the str_replace
$list = "http://www.lyrdb.com/lookup.php?q=" . $song . "&for=fullt";
echo "list url is " . $list . "<hr>";

$content = file_get_contents("http://www.lyrdb.com/lookup.php?q=" . str_replace(" ", "%20", $song) . "&for=fullt");

echo $content;
?>

if you go to http://webservices.lyrdb.com/lookup.php?q=red%20hot%20chili%20peppers&for=fullt The result should output a list of lyric codes.

When i go to my website /?song=red hot chili peppers , it too converts spaces to %20 's but if it seems the browser converts the %'s to %25.

Can someone help me out?

回答1:

$song = $_GET['song']);

$url = "http://www.lyrdb.com/lookup.php?for=fullt&q=";

echo "list url is " . htmlentities($url . $song) . "<hr>";

$content = file_get_contents($url . urlencode($song));

echo $content;

回答2:

$data = json_encode($_POST);

$url = "http://www.index.com?data=";

echo file_get_contents($url . urlencode($data));

来源：https://stackoverflow.com/questions/9597022/file-get-contents-with-spaces-in-url