I need help converting PHP eregi_replace to preg

Question

I know its a bit long. I'm trying to catch up on a deadline and if anyone could help me, I would gladly appreciate it. Another friend programmer of mine made this PHP script but unfortunately its already deprecated and doesn't work. Can anyone convert this to preg? I know nothing about eregi, preg, rejex, etc.

    function tolink($text){

    $text = " ".$text;

    $text = eregi_replace('(((f|ht){1}tp://)[-a-zA-Z0-9@:%_\+.~#?&//=]+)',

    '<a href="\\1" target="_blank" rel="nofollow">\\1</a>', $text);

    $text = eregi_replace('(((f|ht){1}tps://)[-a-zA-Z0-9@:%_\+.~#?&//=]+)',

    '<a href="\\1" target="_blank" rel="nofollow">\\1</a>', $text);

    $text = eregi_replace('([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_\+.~#?&//=]+)',

    '\\1<a href="http://\\2" target="_blank" rel="nofollow">\\2</a>', $text);

    $text = eregi_replace('([_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,4})',

    '<a href="mailto:\\1"  rel="nofollow">\\1</a>', $text);

    return $text;

    }

Yes but simply adding delimiters doesn't work. – Mico Abrina Feb 19 '12 at 01:04 — Mico Abrina, Feb 19 '12 at 01:04
why this question is -1. up voted!! – Jaspreet Chahal Feb 19 '12 at 01:22 — Jaspreet Chahal, Feb 19 '12 at 01:22

Jaspreet Chahal · Accepted Answer · 2012-02-19T01:08:57.880

0

wouldn't it be like this

  function tolink($text){
 $text = " ".$text;
 $text = preg_replace("/(((f|ht){1}tp:\/\/)[-a-zA-Z0-9@:%_\+.~#?&\/\/=]+)/","<a href=\"$1\" target=\"_blank\" rel=\"nofollow\">$1</a>", $text);
$text = preg_replace("/(((f|ht){1}tps:\/\/)[-a-zA-Z0-9@:%_\+.~#?&\/\/=]+)/","<a href=\"$1\" target=\"_blank\" rel=\"nofollow\">$1</a>", $text);
 $text = preg_replace("/([[:space:]()[{}])(www.[-a-zA-Z0-9@:%_\+.~#?&\/\/=]+)/",
                      "$1<a href=\"http://$2\" target=\"_blank\" rel=\"nofollow\">$2</a>", $text);

 $text = preg_replace('/([_\.0-9a-z-]+@([0-9a-z][0-9a-z-]+\.)+[a-z]{2,4})/',
                      "<a href=\"mailto:$1\"  rel=\"nofollow\">$1</a>", $text);
 return $text;

}

you can also append i at the end of preg_replace pattern to make so that lowercase and uppercase character will be matched

this is what i mean

 preg_replace('/(((f|ht){1}tp:\/\/)[-a-zA-Z0-9@:%_\+.~#?&\/\/=]+)/i' .....

edited Feb 19 '12 at 01:08

answered Feb 19 '12 at 00:38

Jaspreet Chahal

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Warning: preg_replace() [function.preg-replace]: Unknown modifier '/' in {PATH} on line 9 Warning: preg_replace() [function.preg-replace]: Unknown modifier '/' in {PATH} on line 13 Warning: preg_replace() [function.preg-replace]: Unknown modifier '/' in {PATH} on line 17 – Mico Abrina Feb 19 '12 at 00:55
I got those errors trying out your script. Thanks a lot though! – Mico Abrina Feb 19 '12 at 01:00
I guess was not paying attention. editing it now – Jaspreet Chahal Feb 19 '12 at 01:01
I've edited it. can you also give me example usage of that function so that I can test it. – Jaspreet Chahal Feb 19 '12 at 01:09
Also, it simply converts all URL inputs into no-follow and clickable links. – Mico Abrina Feb 19 '12 at 01:48

I need help converting PHP eregi_replace to preg

1 Answers1