parsing numbers help

[tjburke79]

i am wondering if someone can help me out.  i am trying to parse a field, and i need to split the field into 2 values.

 

$Var = "+1.5-165";  or  $Var = "-1.5+145";

 

i need +1.5 as on var and -165 as another, and it is possible that the numbers are switch around, so i can not use the explode function to spit them

 

any body of a solution?

 

thanks

 

 

[gizmola]

I'm not sure what you mean by switched around.  This is specific to the first number having a decimal and the second number not having one.  However, preg_match will match both of these, but you'll have to figure out what elements in the match array to grab.  Off the top of my head it would be match[3] and match[5] but you should var_dump and test.

 

$regex = "/((\+|-)([0-9]+\.[0-9]+))((\+|-)[0-9]+)/";
preg_match($regex, $yourstring, $match);
var_dump($match);

[AyKay47]

this can be done with a regex yes.

 

$subject = "+1.5-165"; //or other way around
$pattern = "~^(\+[0-9]+\.[0-9]+ |-[0-9]+\.[0-9]+)(\+\d+ |-[0-9]+)$~";
preg_match($pattern, $subject, $matches);
foreach($matches as $match){
      print "$match <br />";
}

 

Edit: well I took the time to write it, so i might as well post it! Sorry Gizmo for the redundancy

[xyph]

<?php 

$str = "+1.5-165";

$exp = "/[-+][0-9.]+/";

preg_match_all( $exp, $str, $matches );

print_r( $matches[0] );

?>

 

You guys use some COMPLEX regex

[gizmola]

I like your xyph, although we don't know what might be in the input string, that looks good, and doesn't care about position.

[xyph]

Just to note as well to AyKay - Your pattern breaks You have a space before your or pipes.

[AyKay47]

  Quote

Just to note as well to AyKay - Your pattern breaks You have a space before your or pipes.

\ahhh you're right, my fault I like your regex better anyways...

[gizmola]

AyKay47, look into a testing tool like RegexCoach.  You can verify your regex's do what you think they do without having to write up a test script.

[AyKay47]

  Quote

AyKay47, look into a testing tool like RegexCoach.  You can verify your regex's do what you think they do without having to write up a test script.

yeah I was actually talking to xyph a little bit ago about the one that he uses..I will need to look into getting one, will save me some time and produce cleaner regex no doubt...

[xyph]

RegEx Coach is free - Give it a shot first