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-rw-r--r--user_guide/general/common_functions.html6
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@@ -99,6 +99,12 @@ else<br />
<p><a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html">See here</a> for a full list of headers.</p>
+
+<h2>remove_invisible_characters(<var>$str</var>)</h2>
+<p>This function prevents inserting null characters between ascii characters, like Java\0script.</p>
+
+
+
</div>