PHP string filter required function, secure MySQL

Htmlspecialchars

Converts special characters into HTML format.

Syntax: string Htmlspecialchars (String string);

return value: string

function Type: data processing

Content Description

This function converts special characters into an HTML string format (&....;). The most commonly used occasions may be to deal with the message version of the customer message.

• & (and) Convert to &
• "(double quotes) turn to "
• < (less than) turn into &lt;
• > (greater than) convert to &gt;

This function converts only the special characters above, and does not convert all to the ASCII conversion specified by HTML.

Usage examples

This is the example provided by  aulbach@unter.franken.de  (27-jan-1999)  

<FORM  Action=bla>
Name of restaurant:
< Input type=text name= "Restname"  value= "<?
      ECHO&NBSP; $restname ?> > 
<!--  variable  $ restname  is a   $restname of sauces = "" The whit </