get string in between using Reqular Expression

Question

I have a string in php as

$str = "@113_Miscellaneous_0 = 0@,@104_documentFunction_0 = 1@";

How do i apply regular expression so i can extract the strings in between the @ char so that the resulting result will be an array say

result[0] = "113_Miscellaneous_0 = 0";  
result[1] = "104_Miscellaneous_0 = 1";

@Fluffeh thanks for editing @ Utkanos - tried something like this

$ptn = "@(.*)@";  
preg_match($ptn, $str, $matches);  
print_r($matches);  

output:
     Array
        (
            [0] => \"113_Miscellaneous_0 = 0\",\"104_documentFunction_0 = 1\"
            [1] => \"113_Miscellaneous_0 = 0\",\"104_documentFunction_0 = 1\"
        )

Shubham · Accepted Answer · 2012-08-13 11:27:57Z

3

Use a non-greedy match,

preg_match_all("/@(.*?)@/", $str, $matches);
var_dump($matches);

edited Aug 13, 2012 at 11:27

answered Aug 13, 2012 at 11:20

Shubham

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6 Comments

red-X Over a year ago

Would this not catch the , as a match?

DavidS Over a year ago

No, it will not catch the comma. Only text between each @. Here's an example without laziness: preg_match_all ('#@([^@]+)#', $str, $matches);

Shubham Over a year ago

Oh sorry for the wrong update, I myself got confused with red-X comment.

Aries Over a year ago

because im trying the regex from this site, but i cant seem to have my expected result

Shubham Over a year ago

What result you expect? I am getting the exact strings you need.

|

red-X · Accepted Answer · 2012-08-13 11:34:41Z

1

You might go about it differently:

$str = str_replace("@", "", $str);
$result = explode(",", $str);

EDIT

Alright, give this a try than:

$ptn = "/@(,@)?/";
$str = "@113_Miscellaneous_0 = 0@,@104_documentFunction_0 = 1@";
preg_split($ptn, $str, -1, PREG_SPLIT_NO_EMPTY);

result:

Array
(
    [0] => 113_Miscellaneous_0 = 0
    [1] => 104_documentFunction_0 = 1
)

edited Aug 13, 2012 at 11:34

answered Aug 13, 2012 at 11:22

red-X

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2 Comments

dnagirl Over a year ago

And what if there are commas in the expressions to be captured? Better to explode on '@' and then filter out the commas, I think.

red-X Over a year ago

@dnagirl that wasnt a requirement in the question but in that case see edit

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