Regular expression Match :

[ajd335]

Hey all,
I have some data like mg-st-005.xyz.pqr.dyd .
I want to have the string mg-st-005 ( string before the first "."(dot)).
My preg_match does not work properly....
can you please help me?
Thanks...

[leeogrady]

what is 'preg_match' ie what is the code and its purpose?
are you just after code that will retrieve the string information before the first '.'?

[ajd335]

what is 'preg_match' ie what is the code and its purpose?
are you just after code that will retrieve the string information before the first '.'?

hey leeogrady,
yes, I just wanted to have the string before the first ".".
And for that I used preg match..
My code was,

preg_match("/(.*)$./",$hostname,$matches);

where host name is the mg-st-005.xyz.pqr.dyd
Thanks...

[leeogrady]

I am still not sure what preg_match is, but i think there is a better way...
I would use strtok() a built in function to PHP
the code is something like:

$delims = "/(.*)$/";
$hostname = "mg-st-005.xyz.pqr.dyd";

$word = strtok($hostname, $delims);
if($word == "mg-st-005") {
  'IT IS A MATCH!
}

I hope this helps
Lee

[Markus]

I am still not sure what preg_match is, but i think there is a better way...
I would use strtok() a built in function to PHP
the code is something like:

$delims = "/(.*)$/";
$hostname = "mg-st-005.xyz.pqr.dyd";

$word = strtok($hostname, $delims);
if($word == "mg-st-005") {
  'IT IS A MATCH!
}

I hope this helps
Lee

Would explode() not work?

[php]
$hostname = explode('.', 'mg-st-005.xyz.pqr.dyd ');

echo $hostname[0];
[/php]

[Markus]

I am still not sure what preg_match is, but i think there is a better way...

You've never used any of the preg_* functions? You use them in conjunction with regular expressions.

preg_match(), preg_replace(), etc.

[leeogrady]

No i havent!?! thanks for that markusn00b, i will look in to them!

Dam. Yes of course, explode() is what i was trying to think of but couldnt! strtok() was the only thing i could think of!

[Markus]

No i havent!?! thanks for that markusn00b, i will look in to them!

Dam. Yes of course, explode() is what i was trying to think of but couldnt! strtok() was the only thing i could think of!

When you get your head around regular expressions (I still haven't), you'll be able to be alot more effective in your programming.

Darn that explode()!

[nashruddin]

Using explode() is the most efficient. But here's how to do that with preg_match:

<?php
$hostname = 'mg-st-005.xyz.pqr.dyd';

preg_match("/^([^\.]+)\..+$/", $hostname, $matches);

echo $matches[1]; /* will print: mg-st-005 */
?>

[ajd335]

Thanks all,
The problem is solved..
Thanks for the help..

[Markus]

Thanks all,
The problem is solved..
Thanks for the help..

Glad we could all be of assistance!

[pbmods]

I know I'm coming in here a little late, but...
[code=php]
$custom = substr($hostnam e, 0, strpos($hostnam e, '.'));
[/code]

[ajd335]

I know I'm coming in here a little late, but...
[code=php]
$custom = substr($hostnam e, 0, strpos($hostnam e, '.'));
[/code]

Hey Pbmod,
Thanks for the solution..