首頁 繪圖設計 工作閒聊 比賽活動 美術討論 標籤 圖片
Anti SPAM: PHP compare similar string/text (with sorting)
Type(Type) 2014/11/2 17:08

Anti SPAM: PHP compare similar string/text (with sorting)

PHP::similar_text will be defeated by shuffling the text sequence,this function try to sort before compare similar string.Note: This only considers "\n"(LF) as token,you could add more delimiter/separator. (e.g. "space", "period")代碼:
function compare_similar_str($var_1, $var_2){    $a1 = array();    $a2 = array();    $percent = 0;    // You could add more delimiter/separators to fit your need    $a1 = explode("\n", str_replace(' ', '', $var_1));    $a2 = explode("\n", str_replace(' ', '', $var_2));    sort($a1);    sort($a2);    $var_1 = implode('', $a1);    $var_2 = implode('', $a2);    similar_text($var_1, $var_2, $percent);    return intval($percent);}


Type(Type) 2014/11/7 14:26

PHP: remove_symbols

This co-works with compare_similar_str() to achieve preliminary anti-spam
代碼:
/* * Replace symbols --> compare to achieve preliminary spam-proof */function remove_symbols($this_str){    $symbols = array('‘','’',':',',',';','。',',','"',';','、','~','@','#','$','%','︿','&','*',            '/','!','@','#','$','%',':','^','&','*','(',')','-','_','+','=','{','[','}',']','?',            '<','>','~', "\n", '\\',            '╳','○','☆','★','□','■','●','【','】','「','」','『','』','〈','〉',            '【','】','「','」','『','』','〈','〉','《','》','〔','〕','{','}','↑','↓','←','→','↖','↗','↙','↘','╳','○','☆',            '☻','☺','♠','♣','♥','♦','♪','♀','♂','㊣', "'", ' ',            );    $test = str_replace($symbols, '', $this_str);    return $test;}


(1,417 views)
[更多討論] 討論區 Windows, Linux, Perl, PHP, C/C++, Driver, Web 理論、應用、硬體、軟體


"Anti SPAM: PHP compare similar string/text (with sorting)" 傳統頁面(電腦版)

首頁 繪圖設計 工作閒聊 比賽活動 美術討論 標籤 圖片
傳統桌面版
© Vovo2000.com Mobile Version 小哈手機版 2019