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Editorial Team
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Asked: 2026-06-13T13:04:20+00:00

I am using implode to create a query string but there is an unexpected

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I am using implode to create a query string but there is an unexpected symbol appearing in it and im unsure where it is coming from

If anyone has any insight it would be much appreciated. 

$url = "https://mypay.com/billing/signup.cgi";



$key = "11";
$key .= "11";
$key .= "GBP";
$key .= "QQDNfAHlC2WEEfhfhFFdhbdf";

$variables[] = "?formDigest=".md5($key);
$variables[] = "clientAccnum=1111";
$variables[] = "clientSubacc=1111";
$variables[] = "formName=108ck";
$variables[] = "formPrice=11";
$variables[] = "formPeriod=11";
$variables[] = "currencyCode=GBP";


$url .= implode("&", $variables);

echo $url;

The String

https://bill.ccbill.com/jpost/signup.cgi?formDigest=df03f2b103f79bd5de34c6cfea405ec5&clientAccnum=1111&clientSubacc=1111&formName=108ck&formPrice=11&formPeriod=11¤cyCode=GBP

notice the ¤ symbol where currencyCode should be.

Thanks for the help guys!

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1 Answer

  1. Editorial Team

    implode works fine.

    The problem here is that you are outputting HTML text (echo $url) but you are not properly encoding HTML special characters with htmlspecialchars.

    When the browser sees the substring &currencyCode=GBP it guesses that you must have meant ¤Code=GBP; ¤ is the HTML entity for the currency symbol, so that’s what you see on the screen.

    Change the code to echo htmlspecialchars($url) to see an immediate difference; for a fully correct solution, pay attention to and give correct values for the first three arguments of htmlspecialchars.

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