How to echo javascript encoded url from GET variable on php

Question

How to echo-ing decoded url from GET method on php,

i have this link:

localhost/whatsapp?text=Hello%2C%20Who%20are%20U%3F%0AName%3A%20%0AAddress%3A%20%0AAge%3A%20

with this code

$text = $_GET['text'];
header("Location: https://web.whatsapp.com/send?phone=00000000&text=".$text);

but get error

Warning: Header may not contain more than a single header, new line detected in index.php on line

Possible duplicate of getting warning "Header may not contain more than a single header, new line detected" — Nico Haase
– Nico Haase, Commented May 3, 2019 at 7:30

Qirel · Accepted Answer · 2019-05-03 07:39:27Z

4

When you retrieve values from $_GET, they are URL decoded. If you want to pass it back, you need to encode it again, so that newlines, spaces and other weird characters gets encoded. Use urlencode($text) for this.

$text = $_GET['text'];
header("Location: https://web.whatsapp.com/send?phone=00000000&text=".urlencode($text));

edited May 3, 2019 at 7:39

answered May 3, 2019 at 7:30

Qirel

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6 Comments

Great Saiyaman Over a year ago

on whatsapp write as Hello,+Who+are+U? Name:+ Address:+ Age:+ how to remove "+" char?

Qirel Over a year ago

That's the encoded URL. To decode it, you use urldecode() on it after its sent (on the receiving end). You need to check what sort of parameter you can send to their text.

Great Saiyaman Over a year ago

I want to convert from this link localhost/wa-gen/?text=Hello%2C%20Who%20are%20U%3F%0AName%3A%20%0AAddress%3A%20%0AAge%3A%20 to https://web.whatsapp.com/send?phone=00000000&text=Hello%2C%20Who%20are%20U%3F%0AName%3A%20%0AAddress%3A%20%0AAge%3A%20 so echoing exactly same to $text, but the retrun is diffrent when i use urldecode()

Great Saiyaman Over a year ago

I think whit urlencode() it will remove %20 to + how to exactly echoing same variable without converting %20 to +

Qirel Over a year ago

rawurlencode() would parse spaces as %20, while urlencode() parses spaces as +. Might want that function instead.

|

Jim Grant · Accepted Answer · 2019-05-03 07:53:24Z

0

You will have to parse the incoming encoded URL before adding the correct part to the new URL, such as:

<?php
    $url = 'localhost/wa-gen/?text=Hello%2C%20Who%20are%20U%3F%0AName%3A%20%0AAddress%3A%20%0AAge%3A%20';

    $newURL = "https://web.whatsapp.com/send?phone=00000000&".parse_url($url, PHP_URL_QUERY);
?>

Parse_url is very good at extracting pieces from a given URL.

answered May 3, 2019 at 7:53

Jim Grant

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