Protection against SQL injection while magic quote is off

If magic quotes is turned off, how can you protect against SQL injection in this case?

I tried this code suggested by security book:

if (get_magic_quotes_gpc()) {
    $input = array(&$_GET, &$_POST, &$_COOKIE, &$_ENV, &$_SERVER);
    while (list($k,$v) = each($input)) {
        foreach ($v as $key => $val) {
            if (!is_array($val)) {
            $input[$k][$key] = stripslashes($val);
            continue;
            }
        $input[] =& $input[$k][$key];
        }
    }
    unset($input);
}

But it didnt do it!

Thanks for your help!
LVL 1
bprof2007Asked:
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Cornelia YoderArtistCommented:
Pass all your inputs through the function htmlentities with the ENT_QUOTES option.

$safeinput = htmlentities($input,ENT!QUOTES):
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Cornelia YoderArtistCommented:
Sorry for the typo.

$safeinput = htmlentities($input,ENT_QUOTES);
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gamebitsCommented:
You van also use

mysql_real_escape_string()

http://ca.php.net/manual/en/function.mysql-real-escape-string.php
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Cornelia YoderArtistCommented:
Keep in mind that mysql_real_escape_string is for MySQL commands, it is not a general php function that would work for an array.
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bprof2007Author Commented:
Thanks for the prompt response. I've tried it and it gave me the same results:

test's test ''' test'''

But this is how it should look when magic quotes is on:

test\'s test \'\'\' test\'\'\'
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gamebitsCommented:
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bprof2007Author Commented:
Thanks gamebits,

I tried

mysql_real_escape_string()

but when magic quotes is off it does NOT work. I mean it gives me this:

test's test ''' test'''

Instead of this:

test\'s test \'\'\' test\'\'\'
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Cornelia YoderArtistCommented:
htmlentities does NOT add slashes into your input.  It changes the string to use the & html codes for all special characters.  That's what makes it so safe and so convenient for things you want to print but still be safe.   So when you print the results, you'll still see the quotes, but if you look in the database for example, you'll see &#34 or &#39.  

http://www.ascii.cl/htmlcodes.htm

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bprof2007Author Commented:
Thank you yodercm. I need something like that.

Thanks gamebits for your contribution.
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