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| <?php | |
| /** | |
| * Filter input based on a whitelist. This filter strips out all characters that | |
| * are NOT: | |
| * - letters | |
| * - numbers | |
| * - Textile Markup special characters. | |
| * | |
| * Textile markup special characters are: | |
| * _-.*#;:|!"+%{}@ | |
| * | |
| * This filter will also pass cyrillic characters, and characters like é and ë. | |
| * | |
| * Typical usage: | |
| * $string = '_ - . * # ; : | ! " + % { } @ abcdefgABCDEFG12345 éüртхцчшщъыэюьЁуфҐ ' . "\nAnd another line!"; | |
| * echo textile_sanitize($string); | |
| * | |
| * @param string $string | |
| * @return string The sanitized string | |
| * @author Joost van Veen | |
| */ | |
| function textile_sanitize($string){ | |
| $whitelist = '/[^a-zA-Z0-9а-яА-ЯéüртхцчшщъыэюьЁуфҐ \.\*\+\\n|#;:!"%@{} _-]/'; | |
| return preg_replace($whitelist, '', $string); | |
| } |
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