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Re: Regarding split text and match from data base

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Jerry Stuckle, 2013-11-22 19:57:

> On 11/22/2013 11:50 AM, Arno Welzel wrote:
>> Jerry Stuckle, 2013-11-22 16:54:
>>
>>> On 11/22/2013 10:34 AM, Arno Welzel wrote:
>>>> Am 22.11.2013 12:28, schrieb jalaf28@gmail.com:
>>>>
>>>>> Hello All I just start learning PHP  and i am using 5.4.16 i just
>>>>> want to split the out put of the following and match from the
>>>>> database and print the System name.
>>>>>
>>>>> here is the Code
>>>>>
>>>>> <?php
>>>>>
>>>>> ob_start(); $line=shell_exec("arp -a"); echo "<pre>; echo $line; echo
>>>>> "</pre>";
>>>>>
>>>>> ?>
>>>>>
>>>>> It shows the output of the command "arp -a" and show the Ip address
>>>>> and  Mac address on the LAN system. i saved the name and the Mac
>>>>> address in the database. now i want to extaxct the command output and
>>>>> match ["MAc address] with database and show the Particular system
>>>>> name and Ip Address. i try google but not sufficent.
>>>>
>>>> You can try explode() using space (' ') as delimiter, see:
>>>>
>>>> <http://php.net/manual/en/function.explode.php>
>>>>
>>>>
>>>>
>>>
>>> Arno,
>>>
>>> Have you actually looked at the output of arp -a?  From your response, I
>>> don't think so.
>>
>> And where is your answer to the question?
>>
>> Anyway...
>>
>> arp -a outputs here (numbers as "x" for privacy reasons):
>>
>> somename (xxx.xxx.xxx.xxx) at xx:xx:xx:xx:xx:xx [ether] on eth0
>>
>> So - using explode() on this line with space as delimiter should return
>> an array with the following elements:
>>
>> somename
>> (xxx.xxx.xxx.xxx)
>> at
>> xx:xx:xx:xx:xx:xx
>> [ether]
>> on
>> eth0
>>
>> Then you can use the fourth element which contains the MAC address.
>>
>> If you get more than one line of output, the lines have to be split
>> first of course. Therefore I'd recommend using exec() which will return
>> the output as an array with one element for each line of output.
>>
>>
>>
> 
> My reply is above - if you bothered to read (which you obviously 
> didn't).  Additionally, the output of arp -a is also dependent on the 
> operating system and version of arp.  Your way requires much more 
> processing than a simple preg_match().

Yep - I didn't see your other post when I wrote my reply.

And yes, I'm also aware that the output of arp -a depends on the
operating system version. That's why I said - "You can try explode()"
and not "use explode() this will always work". Of course I haven taken
into account that the output format is not the same on all operating
systems.

> And in this case the regex is pretty simple, and parses the output he 
> wants into a multi-dimensional array in one statement.

Sury - regex is pretty simple assuming the OP knows how to use regular
expressions ;-)

But even then additional parsing may be neccessary if arp groups
interfaces and outputs the interface description first and then a list
of entries for that interface like Windows 7 does.

Again - that's why I said "You can try explode()" - it was only a
suggestion, not a complete solution. But preg_metch() is neither.


-- 
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de

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Thread

Regarding split text  and match from data base jalaf28@gmail.com - 2013-11-22 03:28 -0800
  Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-22 09:24 -0500
  Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-22 16:34 +0100
    Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-22 10:54 -0500
      Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-22 17:50 +0100
        Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-22 13:57 -0500
          Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-23 08:52 +0100
            Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-23 07:05 -0500
              Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-24 17:17 +0100
                Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-24 11:23 -0500
  Re: Regarding split text  and match from data base jalaf28@gmail.com - 2013-11-24 20:02 -0800
  Re: Regarding split text  and match from data base jalaf28@gmail.com - 2013-11-24 22:09 -0800
  Re: Regarding split text  and match from data base jalaf28@gmail.com - 2013-11-24 22:35 -0800
    Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-25 08:35 +0100
      Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-25 08:36 +0100
    Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-25 09:31 -0500
  Re: Regarding split text  and match from data base jalaf28@gmail.com - 2013-11-25 21:32 -0800
  Re: Regarding split text  and match from data base jalaf28@gmail.com - 2013-11-25 21:41 -0800
    Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-26 07:20 -0500
      Re: Regarding split text  and match from data base jalaf28@gmail.com - 2013-11-26 21:22 -0800
        Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-27 12:29 +0100
          Re: Regarding split text  and match from data base Arno Welzel <usenet@arnowelzel.de> - 2013-11-27 12:31 +0100
        Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-27 09:57 -0500
          Re: Regarding split text  and match from data base Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-11-28 12:27 +0000
            Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-28 11:01 -0500
              Re: Regarding split text  and match from data base Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-11-28 18:51 +0000
                Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-28 19:27 -0500
                Re: Regarding split text  and match from data base Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-11-29 02:34 +0000
                Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-28 22:47 -0500
                Re: Regarding split text  and match from data base Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-11-29 05:01 +0000
                Re: Regarding split text  and match from data base Jerry Stuckle <jstucklex@attglobal.net> - 2013-11-29 07:40 -0500
                Re: Regarding split text  and match from data base Ben Bacarisse <ben.usenet@bsb.me.uk> - 2013-11-29 13:58 +0000

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