轉換eregi到的preg_match和ereg_replace使用

Question

林http://www.internoetics.com/2010/01/12/simple-whois-php-script/ PHP域名註冊腳本的preg_replace，我需要配置它最新的PHP版本，我需要轉換額日格和eregi到的preg_match和的preg_replace

if ((!eregi('^[a-zA-Z0-9-]+\.([a-zA-Z]{2,4})$', $domain)) && (!eregi('^[a-zA-Z0-9-]+\.([a-zA-Z]{2,4})+\.([a-zA-Z]{2,4})$', $domain))) $arrErrors['domi'] = 'Domain name appears to be invalid.'; 

function makeClickableLinks($text) 
{ 
     $text = html_entity_decode($text); 
     $text = " ".$text; 
     $text = eregi_replace('(((f|ht){1}tp://)[-a-zA-Z0-9@:%_\+.~#?&//=]+)', 
       '<a href="\\1" target=_blank>\\1</a>', $text); 
     $text = eregi_replace('(((f|ht){1}tps://)[-a-zA-Z0-9@:%_\+.~#?&//=]+)', 
       '<a href="\\1" target=_blank>\\1</a>', $text); 
     $text = eregi_replace('([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_\+.~#?&//=]+)', 
     '\\1<a href="http://\\2" target=_blank>\\2</a>', $text); 
     $text = eregi_replace('([_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,3})', 
     '<a href="mailto:\\1" target=_blank>\\1</a>', $text); 
     return $text; 
} 

感謝

Answer 1

對於preg_ *函數，您只需在模式的開始和結尾添加分隔符，例如/或#或其他。

寫這

if ((!preg_match('/^[a-z\d-]+\.([a-z]{2,4})$/i', $domain)) && (!preg_match('/^[a-z\d-]+\.([a-z]{2,4})+\.([a-z]{2,4})$/', $domain))) 
    echo $arrErrors['domi'] = 'Domain name appears to be invalid.'; 

function makeClickableLinks($text) 
{ 
     $text = html_entity_decode($text); 
     $text = " ".$text; 
     $text = preg_replace('#(((f|ht){1}tp://)[-a-z\d@:%_\+.~\#?&//=]+)#', 
       '<a href="\\1" target=_blank>\\1</a>', $text); 
     $text = preg_replace('#(((f|ht){1}tps://)[-a-z\d@:%_\+.~\#?&//=]+)#', 
       '<a href="\\1" target=_blank>\\1</a>', $text); 
     $text = preg_replace('#([[:space:]()[{}])(www.[-a-z\d@:%_\+.~\#?&//=]+)#', 
     '\\1<a href="http://\\2" target=_blank>\\2</a>', $text); 
     $text = preg_replace('#([_\.\da-z-]+@([\da-z][\da-z-]+\.)+[a-z]{2,3})#', 
     '<a href="mailto:\\1" target=_blank>\\1</a>', $text); 
     return $text; 
}