Codeigniter - make email unreadable by bots - codeigniter

Question

Is there a method in codeigniter to make email links unreadable by bots? If not does anyone recommend a decent simple solution?

Answer 1

Oops..
Codeigniter has a function safe_mailto() in the URL helper

Answer 2

I was told this will work for google search appliance
<!--googleoff: index-->
my email
<!--googleon: index-->
Source: http://perishablepress.com/tell-google-to-not-index-certain-parts-of-your-page/
Please let me know if is incorrect.

Answer 3

There probably isn't any perfect solution here, especially if you don't want to inconvenience your users.
One simple method (which could be combined with the google comments mentioned by ajreal), would be to use entity encoding to obfuscate their source. This would block simple bots.
See here for some details: http://www.wbwip.com/wbw/emailencoder.html

Answer 4

CodeIgniter has a safe_mailto() method in the URL Helper class that obfuscates e-mail addresses in the HTML source code, without affecting the end user.
https://codeigniter.com/userguide3/helpers/url_helper.html#safe_mailto
Example Template Code:
<p>My e-mail address is <?php $this->load->helper('url'); echo safe_mailto('abc#gmail.com'); ?>.</p>
Example HTML Output:
<p>My e-mail address is <script type="text/javascript">
//<![CDATA[
var l=new Array();
l[0] = '>';
l[1] = 'a';
l[2] = '/';
l[3] = '<';
l[4] = '|109';
l[5] = '|111';
l[6] = '|99';
l[7] = '|46';
l[8] = '|108';
l[9] = '|105';
l[10] = '|97';
l[11] = '|109';
l[12] = '|103';
l[13] = '|64';
l[14] = '|99';
l[15] = '|98';
l[16] = '|97';
l[17] = '>';
l[18] = '"';
l[19] = '|109';
l[20] = '|111';
l[21] = '|99';
l[22] = '|46';
l[23] = '|108';
l[24] = '|105';
l[25] = '|97';
l[26] = '|109';
l[27] = '|103';
l[28] = '|64';
l[29] = '|99';
l[30] = '|98';
l[31] = '|97';
l[32] = ':';
l[33] = 'o';
l[34] = 't';
l[35] = 'l';
l[36] = 'i';
l[37] = 'a';
l[38] = 'm';
l[39] = '"';
l[40] = '=';
l[41] = 'f';
l[42] = 'e';
l[43] = 'r';
l[44] = 'h';
l[45] = ' ';
l[46] = 'a';
l[47] = '<';
for (var i = l.length-1; i >= 0; i=i-1) {
if (l[i].substring(0, 1) === '|') document.write("&#"+unescape(l[i].substring(1))+";");
else document.write(unescape(l[i]));
}
//]]>
</script>.</p>