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Editorial Team
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Asked: 2026-05-31T02:18:00+00:00

In the system I’m building I use CKEditor for writing posts. Then, when I

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In the system I’m building I use CKEditor for writing posts. Then, when I send it to PHP I validate the html created from CKEditor with HTMLPurifier. The problem is that the HTMLPurifier adds \ before “. For example, the CKEditor produces:

<span style="font-size:36px;">

And after HTMLPurifier:

<span style=\"font-size:36px;\">

I’m using PHP 5.2. Why does HTMLPurifier adds these backslashes and what must I do to fix it?

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1 Answer

  1. Editorial Team

    It’s not HTML purifier that adds the extra slashes, but your PHP configuration. Edit php.ini and disable magic_quotes_gpc.

    The linked manual suggests you to add the next setting to php.ini:

    magic_quotes_gpc = Off

    If you are using Apache and can use .htaccess files, create one with:

    php_flag magic_quotes_gpc Off
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