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Asked: 2026-06-05T04:31:35+00:00

I would like to replace the € sign in $XML_COMMENT with euros before adding

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I would like to replace the € sign in $XML_COMMENT with “euros” before adding to a xml file.

The € sign not being a utf-8 character I get and error message from simplexml

Warning: SimpleXMLElement::addAttribute(): string is not in UTF-8 in ...
Warning: SimpleXMLElement::asXML(): output conversion failed due to conv error, bytes 0x82 0x26 0x61 0x6D in ....

The euro sign appears in the MySQL (utf-8) database as ‘€’

But appears correctly in the textarea on the webpage.

I tried to use these different str_replace 

$XML_COMMENT=str_replace('€','euros',$XML_COMMENT)
$XML_COMMENT=str_replace('€','euros',$XML_COMMENT)
$XML_COMMENT=str_replace(chr(128),'euros',$XML_COMMENT)
$XML_COMMENT=str_replace(chr(0xE2).chr(0×82).chr(0xAC),'euros',$XML_COMMENT)
$XML_COMMENT=str_replace(chr(0x82).chr(0x26).chr(0x61).chr(0x6D),'euros',$XML_COMMENT)

without success

FYI: I’m using utf-8 everywhere (MySQL, Web Page and XML)

Here’s my code

// ? : $XML_COMMENT= "bla bla bla € bla bla bla";
// ? : $XML_COMMENT= "bla bla bla € bla bla bla";
// expected : $XML_COMMENT= "bla bla bla euros bla bla bla";

$ProductLog_XML = simplexml_load_file($file);
$ProductUpdate = $ProductLog_XML->order->product->addChild('update');
$ProductUpdate->addAttribute('comment',$XML_COMMENT);
$fp=fopen(file, "w");
fwrite($fp, $ProductLog_XML->asXML());
fclose($fp);

Is there any alternative using regex / preg_replace ?

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1 Answer

  1. Editorial Team

    You can try htmlentities() to convert all entities including the euro sign, so they appear like €.

    I would use it in the following manner: htmlentities($str, ENT_QUOTES|"ENT_HTML401", "UTF-8", true)

    You may choose to use: htmlentities($XML_COMMENT, ENT_QUOTES | ENT_IGNORE, "UTF-8", true). For a full explanation of what the flags change, visit the link below.
    As requested by OP @baptme (see comments).

    Source: php.net reference

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