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1 | <?php |
1 | <?php |
2 | 2 | ||
3 | // PHP-AntiSpam-Funktion "secure_email", Version 3.05 of 2018-07-20 |
3 | // PHP-AntiSpam-Funktion "secure_email", Version 3.06 of 2022-01-09 |
4 | // von Daniel Marschall [www.daniel-marschall.de] |
4 | // by Daniel Marschall [www.daniel-marschall.de], ViaThinkSoft |
- | 5 | // License: Apache 2.0 License |
|
5 | 6 | ||
6 | if (!function_exists('alas_js_crypt')) |
7 | if (!function_exists('alas_js_crypt')) |
7 | { |
8 | { |
8 | function alas_js_crypt($text) |
9 | function alas_js_crypt($text) |
9 | { |
10 | { |
10 | $tmp = ''; |
11 | $tmp = ''; |
11 | for ($i=0; $i<strlen($text); $i++) |
12 | for ($i=0; $i<strlen($text); $i++) |
12 | { |
13 | { |
13 | $tmp .= 'document.write("&#'.ord(substr($text, $i, 1)).';");'; |
14 | $tmp .= 'document.write("&#'.ord(substr($text, $i, 1)).';");'; |
14 | } |
15 | } |
15 | return $tmp; |
16 | return $tmp; |
16 | } |
17 | } |
17 | } |
18 | } |
18 | 19 | ||
19 | if (!function_exists('alas_js_write')) |
20 | if (!function_exists('alas_js_write')) |
20 | { |
21 | { |
21 | function alas_js_write($text) |
22 | function alas_js_write($text) |
22 | { |
23 | { |
23 | $text = str_replace('\\', '\\\\', $text); |
24 | $text = str_replace('\\', '\\\\', $text); |
24 | $text = str_replace('"', '\"', $text); |
25 | $text = str_replace('"', '\"', $text); |
25 | $text = str_replace('/', '\/', $text); // W3C Validation </a> -> <\/a> |
26 | $text = str_replace('/', '\/', $text); // W3C Validation </a> -> <\/a> |
26 | return 'document.write("'.$text.'");'; |
27 | return 'document.write("'.$text.'");'; |
27 | } |
28 | } |
28 | } |
29 | } |
29 | 30 | ||
30 | function secure_email($email, $linktext, $crypt_linktext) |
31 | function secure_email($email, $linktext, $crypt_linktext, $css_class='') |
31 | { |
32 | { |
32 | // No new lines to avoid a JavaScript error! |
33 | // No new lines to avoid a JavaScript error! |
33 | $linktext = str_replace("\r", ' ', $linktext); |
34 | $linktext = str_replace("\r", ' ', $linktext); |
34 | $linktext = str_replace("\n", ' ', $linktext); |
35 | $linktext = str_replace("\n", ' ', $linktext); |
35 | 36 | ||
36 | $aus = ''; |
37 | $aus = ''; |
37 | if ($email != '') |
38 | if ($email != '') |
38 | { |
39 | { |
39 | $aus .= '<script><!--'."\n"; // type="text/javascript" is not necessary in HTML5 |
40 | $aus .= '<script><!--'."\n"; // type="text/javascript" is not necessary in HTML5 |
- | 41 | $aus .= alas_js_write('<a '); |
|
- | 42 | if ($css_class != '') $aus .= alas_js_write('class="'.$css_class.'" '); |
|
40 | $aus .= alas_js_write('<a href="'); |
43 | $aus .= alas_js_write('href="'); |
41 | $aus .= alas_js_crypt('mailto:'.$email); |
44 | $aus .= alas_js_crypt('mailto:'.$email); |
42 | $aus .= alas_js_write('">'); |
45 | $aus .= alas_js_write('">'); |
43 | $aus .= $crypt_linktext ? alas_js_crypt($linktext) : alas_js_write($linktext); |
46 | $aus .= $crypt_linktext ? alas_js_crypt($linktext) : alas_js_write($linktext); |
44 | $aus .= alas_js_write('</a>').'// --></script>'; |
47 | $aus .= alas_js_write('</a>').'// --></script>'; |
45 | } |
48 | } |
46 | 49 | ||
47 | return $aus.'<noscript>Please enable JavaScript to display this email address.</noscript>'; |
50 | return $aus.'<noscript>Please enable JavaScript to display this email address.</noscript>'; |
48 | } |
51 | } |