detecting a character in a string.

[mamanybono]

Hi everybody,

 

I am trying to write a code which record a CIDR (5.2.80.0/21 5.11.128.0/17) format ip list into mysql database. I have a problem at one part of my code. Code is the below. With this code I am trying to find every third "." character's place and every "/" character's place and every " " characters place. After finding the places the code record the places in to an array which name is $reference_points. The problem is that for exaple if I apply this code on this 5.2.80.0/21 5.11.128.0/17 string. The result should be $reference_points.[1]=7 $reference_points.[2]=9 $reference_points.[3]=12 but it shows $reference_points.[1]=7 $reference_points.[2]=9 $reference_points.[3]=23. And the full list of CIDR ip is attached. By the way I use a form on php page to take this list. The code part is which start fith FOR loop. Thak you very much.

 

 

<div align="center">
<form action="add_new_country.php" method="post">
<table>
<tr>
<td>Country name:</td> <td><input type="text" maxlength="50" name="new_country_name" id="new_country_name" size="38" /></td></br></br>
</tr>
<tr>
<td>Country Ip Ranges:</td> <td><textarea rows="10" cols="30"  name="country_ip_ranges" id="country_ip_ranges"> </textarea></td></br></br>
</tr>
<tr>
<td><input type="submit"  name="submit" value="Add New Country" /></td><td></td>
</tr>
</table>
</form>
</div>



<div align="center">
<?php
if(isset($_POST["new_country_name"]) && isset($_POST["country_ip_ranges"]) && !empty($_POST["new_country_name"]) &&             !empty($_POST["country_ip_ranges"])){
$country_name=@$_POST['new_country_name'];
$country_ip_range=@$_POST['country_ip_ranges'];

$sql=mysql_query("SELECT id FROM countries WHERE  country_name='$country_name' LIMIT 1");
$exist_count=mysql_num_rows($sql);

if($exist_count==1){
echo "The name of the country which you try to add is already exist in the system, please try to add different name.";
}else{
mysql_query("INSERT INTO countries (id,country_name) VALUES ('','$country_name')" );
mkdir("$country_name");
$dot=0;
$reference_points=array();
$reference_points_index=1;

for($i=1;$i<=strlen(trim($country_ip_range));$i++){
if(substr(trim($country_ip_range),$i-1,1)=='.' && $dot<3){
$dot=$dot+1;

if($dot==3){
$reference_points[$reference_points_index]=$i;
$dot=0;
$reference_points_index=$reference_points_index+1;
}

}elseif(substr(trim($country_ip_range),$i-1,1)=='/'){
$reference_points[$reference_points_index]=$i;
$reference_points_index=$reference_points_index+1;

}elseif(substr(trim($country_ip_range),$i-1,1)==' '){
$reference_points[$reference_points_index]=$i;
$reference_points_index=$reference_points_index+1;
}
}
echo $reference_points[1].'<br/>';
echo $reference_points[2].'<br/>';
echo $reference_points[3].'<br/>';
echo $reference_points[4].'<br/>';
echo $reference_points[5].'<br/>';
echo $reference_points[6].'<br/>';
echo $reference_points[7].'<br/>';
echo $reference_points[8].'<br/>';
}
}
?>
</div>

19023_.txt

[xyph]

Where are you getting $reference_points.[2]=9

 

There's no 9 in 5.2.80.0/21 5.11.128.0/17

 

You probably want this

 

<?php

$string = '5.2.80.0/21 5.11.128.0/17';

$pattern = '%(\d+)\.(\d+)\.(\d+)\.(\d+)/(\d+)%';
preg_match_all($pattern, $string, $matches, PREG_SET_ORDER);

var_dump($matches);

?>

 

Output

 

array (size=2)
  0 => 
    array (size=6)
      0 => string '5.2.80.0/21' (length=11)
      1 => string '5' (length=1)
      2 => string '2' (length=1)
      3 => string '80' (length=2)
      4 => string '0' (length=1)
      5 => string '21' (length=2)
  1 => 
    array (size=6)
      0 => string '5.11.128.0/17' (length=13)
      1 => string '5' (length=1)
      2 => string '11' (length=2)
      3 => string '128' (length=3)
      4 => string '0' (length=1)
      5 => string '17' (length=2)

[mamanybono]

Thank you xyph that's work for my idea, I am going to try this soon. 9 mean was place of "/" character. As you understand I was trying to split this string.