regex help

[tjburke79]

hello,

i am trying to split a var into 2 other vars, some values will split and some will dont... obviously my regex is wrong, any ideas on how i can make this work?

// these do not split
$var = "-3-115";
$var = "+3-105";
$var = "-7+100";

// these will split
$var = "+6.5-110";
$var = "-5.5-110";

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

[NogDog]

If I'm correctly interpreting what you want, I think you just need to make the decimal portion of the first part optional (untested):

$regex = "/((\+|-)([0-9]+(\.[0-9]+)*))((\+|-)[0-9]+)/";

[NogDog]

PS: I might generalize it to something like this:

<?php
$testCases = array(
   "-3-115",
   "+3-105",
   "-7+100",
   "+6.5-110",
   "-5.5-110"
);

$nbr = '[+-]*\d+(?:\.\d*)*';
$regex = "/($nbr)($nbr)/";
foreach($testCases as $case) {
   echo "<h3>$case</h3>\n";
   preg_match($regex, $case, $matches);
   echo "<pre>".print_r($matches, true)."</pre>\n";
}

[tjburke79]

ok, that seemed to do the job! thanks :-D