URL Decoding in PHP | 易学教程

问题

I am trying to decode this URL string using PHP\'s urldecode function:

urldecode(\"Ant%C3%B4nio+Carlos+Jobim\");

This is supposed to output...

\'Antônio Carlos Jobim\'

...but instead is ouptutting this

\'AntÃ´nio Carlos Jobim\'

I\'ve tested the string in a JS-based online decoder with great success, but can\'t seem to do this operation server side. Any ideas?

回答1:

Your string is also UTF-8 encoded. This will work:

echo utf8_decode(urldecode("Ant%C3%B4nio+Carlos+Jobim"));

Output: "Antônio Carlos Jobim".

回答2:

Actually, you get the desired output, but it is not interpreted as UTF-8. If this is on an HTTP application, you should send a header or a meta tag (or both) which would tell the client to use UTF-8.

Edit: for example:

// replace text/html with the content type you're using
header('Content-Type: text/html; charset=UTF-8');

回答3:

when I do

<?php
echo urldecode("Ant%C3%B4nio+Carlos+Jobim");
?>

Its display correctly in my browser like

Antônio Carlos Jobim

I have tested with XAMPP

回答4:

Are you also using htmlenteties before echoing it to the page? When I just tested your code it worked fine with just the urldecode("Ant%C3%B4nio+Carlos+Jobim"); part, but when I ran it through htmlentities I got the same output as you did.

It seems to be a problem with the UTF-8 characters and how PHP handles the htmlentities function.

回答5:

another option is:

<?php
$smthing = 'http%3A%2F%2Fmysite.com';
$smthing = preg_replace("/%u([0-9a-f]{3,4})/i","&#x\\1;",urldecode($smthing)); 
$smthing = html_entity_decode($smthing,null,'UTF-8');
echo $smthing;
?>

output becomes : http://mysite.com

回答6:

first you have to decode in urldecoder function "urldecoder()" and then use utf decoder function "utf_decoder()"

来源：https://stackoverflow.com/questions/1756862/url-decoding-in-php

标签

php

url

utf-8

urldecode