[Resolved] Locate && extract text from a string , how to ?

xxman

Mhmmm , i'm going crazy !

How to detect and extract into an array one or more Ip address from a string like this ?

$string="As you'll see not everything is perfect now, some images are missing maybe. We try to fix everything during the next few days of course. Also the hackdatabase on server 253.253.254.21 has been removed. Unfortunately it wasn't compatible with the new attachmentsystem availble on server 64.53.25.21, so porting it over would have been too hard. Nevertheless we've devided Full Releases Forums now into all wellknown categories we've had in the DB on server 13.3.4.221 ,we've plans for the future to come up with a new system for hackthreads, but for now i'm sure you can live with that. "

A big trouble M8!

[FONT=century gothic]I'm trying without success using split/eregi functions..[/FONT]

Anybody can help me ??

sleepingdanny

Why don't you just do something like that.

$ip=array('
253.253.254.21,
64.53.25.21,
13.3.4.221
');
print $ip[0]; //253.253.254.21
print $ip[1]; //64.53.25.21
print $ip[2]; //13.3.4.221

xxman

Thanks for the suggestion, unfortunately it's not that I need.. The string is only an example, I don't know of how much IP address are present in it , I don't know the values and I don't know that position in the same one.🙁

batman

I know there is a way to look up a certain type / set of numbers. So like you could do a search on the variable to look for anything in this format. #.#.#.# then you just echo them out. I'm sorry to say though that I don't remember how to do this. Maybe do a search on it.

xxman

Thank's a lot "ßª™ªN", perhaps another Marvel's superhero can help us.. lol lol

LordShryku

Well, I'm still kinda teaching myself regex, so I took on your problem here and tried this...

<?
$string = "asdasdfasdgfasasdfasdfa199.33.222.11s
dfsadfsadfkjaslkglaknsdflkasndflkasdnflaksndflaksndfladlnfakdsnflaksdf
asdkjfanskdfjbkasjdbfkasjbdfkjabsdf56.333.22.666sadAJDSHasjdkjKSDJKASD;
sdfaoisdhfoiahsdofihasdofihasodihoihfdsoifhaosidfaksjdkfjbsadkfjabodfas
fasodfhoiashdofihasodfihaosfgaldfknglaksdofihoisahfdlaskfdlaksdfa44.22.333.44";

preg_match_all("/[0-9]{1,3}[\\.][0-9]{1,3}[\\.][0-9]{1,3}[\\.][0-9]{1,3}/", $string, $matches);

print_r($matches); 
?>

Worked for me. Give it a shot...

superwormy

Regular expressions.
www.php.net/ereg
www.php.net/eregi


<?php

$paragraph = " this is my 192.168.0.1 paragraph with a few ip 192.168.0.15 addresses in it";

$array = explode (" ", $paragraph);

foreach ($array as $word) {

if (eregi ("([0-9]{1,3})\.", $word)) 
{

	print ($word . "<br />");

}

}

?>

xxman

Originally posted by LordShryku
Worked for me. Give it a shot...

Shure ! It works. :p

Just another question:
How to extract any single array value into new variables ?

for ($i=0; $i< count($matches[0]); $i++) {
Newvalue$[$i]=$matches[$i] // it's WRONG !
 }

dalecosp

Originally posted by xxman
Shure ! It works. :p

Just another question:
How to extract any single array value into new variables ?
for ($i=0; $i< count($matches[0]); $i++) {
Newvalue$[$i]=$matches[$i] // it's WRONG !
 }
[/B]

Yup, 'tis. Besides missing the closing semicolon, your "$" is in the wrong place.

$Newvalue[$i]=$matches[$i];
   // if $Newvalue is an array, that is, else...
$somevar=$matches[$i];

So, basically, your approach is (and it oughtta work....)

Replace punctuation in the string with spaces. Assume that each IP will be preceded by a space. Allow for dashes and parenthesis, etc, in your replacement call.
```
$string=str_replace(","," ",$string);
$string=str_replace("$"," ",$string); 
   // hmm, need to escape these?
$string=str_replace("$"," ",$string);
$string=str_replace("-"," ",$string);
```
etc., etc., until there's nothing but words and spaces. Hmm, one problem - what if a sentence ends with an IP and a period? Handle that in the ereg() I guess.
Use split/explode() to create an array of all words in the text.
Loop through the array. Use ereg to determine if the element is a dotted quad IP address. If so, add it to another array.

Not too difficult. As always, one of the major problems is bounds checking the input......

xxman

I understand, but I want know if a way exist to create new variables containing the array values ..

Example :

$Newvalue0=$matches[0];
$Newvalue1=$matches[1];
$Newvalue2=$matches[2];

etc.etc.. Thanks a lot M8 !

dalecosp

Hmm, there is an [man]extract/man function, but I'm not sure it'll help ... it's aimed at associative arrays, starters.

I have been able to successfully use "name$var" in a loop as an array key before, though...

I wonder if you could hack 'em all into an array ($GLOBALS, or $SESSION, whatever) using serialized keys $_GLOBALS["newvalue$n"] and then use [man]extract/man to get 'em into the symbol table directly.....

... Maybe one of the real geniuses'll drop by.... 🙁

LordShryku

Originally posted by dalecosp
I have been able to successfully use "name$var" in a loop as an array key before, though...

I've always used something like $_POST['name'.$var], and never had a problem with that....

xxman

@ :

Another question ...

If I want to compare two string and replace one or more Ip address with "xxx.xxx.xxx.xxx" if match , how I've to do ?

<?

$iptofind="56.333.22.666
dsdsdsdsdsdsds dsd dsd dsds
dsd sd 199.33.222.11 dsdsdsd jtyjtjjtj
jtjtjjjtjt tjjtjtjtjt";

$string = "asdasdfasdgfasasdfasdfa199.33.222.11s 
dfsadfsadfkjaslkglaknsdflkasndflkasdnflaksndflaksn
dfladlnfakdsnflaksdf 
asdkjf235.25.14.58 anskdfjbkasjdbfkasjbdfkjabsdf56.333.22.666sadAJDSHasjdkjKSDJKASD; 
sdfaoisdhfoiahsdofihasdofihasodihoihfdsoifhaosidfa
ksjdkfjbsadkfjabodfas 
fasodfhoiashdofihasodfihaosfgaldfknglaksdofihoisah
fdlaskfdlaksdfa44.22.333.44"; 

 preg_match_all("/[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}/", $string,$matches);
 preg_match_all("/[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}/", $iptofind,$matches2);

 for ($i=0; $i< count($matches[0]); $i++) {
   for ($i2=0; $i2< count($matches2[0]); $i2++) {
    if ($matches[$i]=$matches2[$i2]){
    $findip=str_replace($matches[$i],"xxx.xxx.xxx.xxx",$string);
    }
  }
}

echo $findip ;

?>

..as I have done it doesn't work..🙁

LordShryku

Just came up with this, so test it out thoroughly 😃

preg_match_all("/[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}/", $string, $matches);
preg_match_all("/[0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}[.][0-9]{1,3}/", $iptofind, $matches2);

for($i=0;$i<count($matches2[0]);$i++) {
   if(in_array($matches2[0][$i], $matches[0])) {
      $key = array_search($matches2[0][$i],$matches[0]);
      $string = str_replace($matches[0][$key],"xxx.xxx.xxx.xxx",$string);
   }
}

echo $string;

xxman

@ .... U're the one ! Thanks a lot.😉