How to split a String into array by Regular expression

Question

I have a string of below type.

[test1,3,(257,305,435,900)]

Now i want to split this string into array cell. like this one

term => 'test1', 
num => 3,
info => array{ [0]=> 275, [1]=> 435, [2]=> 900 }

can any one know a regular expression pattern for this string....thanks in advance.

DaveRandom · Accepted Answer · 2012-03-29 10:07:09Z

4

You probably want to use preg_match_all.

$string = "[test1,3,(257,305,435,900)]";

preg_match_all('/\[(?P<term>\w+),(?P<num>\d+),\((?P<info>[\d,]+)\)\]/', $string, $out);

$results = array (
   'term' => $out['term'][0],
   'num'  => $out['num'][0],
   'info' => explode(',', $out['info'][0])
);

var_dump($results);

edited Mar 29, 2012 at 10:07

DaveRandom

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answered Mar 29, 2012 at 9:56

raphink

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6 Comments

DaveRandom Over a year ago

NB: split() emits E_DEPRECATED, use explode() instead. But +1, this works nicely.

raphink Over a year ago

Thanks @DaveRandom. Why is split() deprecated?

ime.devdesks Over a year ago

Thank your for your quick and accurate response, but actually my string data is in this form.....[test1,3,(257,305,435,900)] OR [test1,1,(673)] OR [test1,1,()].....i.e: want that regx work on this form.....once again thanks.

DaveRandom Over a year ago

Because it is part of the ereg family of functions. I actually thought it was just an alias of explode() until I looked it up in the manual but it seems this is not the case - I guess that comes from the fact that join() is an alias of implode(), and when you also write in Javascript it is easy to get them the wrong way round. I only discovered this myself when I ran your code and saw the error.

ime.devdesks Over a year ago

Now i fix this one...../[(?P<term>\w+),(?P<num>\d+),((?P<info>[\d,]*))]/..... Only i change the last + to *.....hurah working perfect....

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