HTML-in PHP textarea input box will automatically add a backslash before, how to solve?

I made a php file, which put a textarea input box, but every time you copy and paste the code, "and" will automatically add a backslash, how to crack ah?

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I made a php file, which put a textarea input box, but every time you copy and paste the code, "and" will automatically add a backslash, how to crack ah?

The php.ini in the MAGIC_QUOTES_GPC is set to off, but it is generally recommended in PHP processing, or to sit down ' single-quote processing, such as if (!MAGIC_QUOTES_GPC ()) {addslashes ($STR);} Prevent SQL injection

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