PHP preg_match regular expression

Question

$var = '<lang test=<php>string</php>><lang test2=before<php>inside</php>>'.
       '<lang test3=THIRD_WITHOUT_PHP_TAGS><lang test4>';
if (preg_match_all('#<lang (.*?)>#', $var, $gg))
{
    var_dump($gg[1]);
}

I get the dump:

array(2) {
  [0]=>
  string(9) "test=<php"
  [1]=>
  string(16) "test2=before<php"
}

But I want to get :

test=<php>string</php>

and

test2=before<php>inside</php>

and

test3=THIRD_WITHOUT_PHP_TAGS

and

test4

How to do it?

EDIT: I CHANGE THE $var AND ADD third expression

EDIT 2: ADEED the fourth expression without "="

you could use $var = '<lang test=[php]string[/php]><lang test2=before[php]inside[/php]>'; and you whont need to modify you're regexp , or you could skip the first two ocurences of '>' but then what if you pass $var = '<lang test=some other test> without any <php> tags ? somebody else better than me will figure out an answer without the need to change the php tags — Poelinca Dorin
– Poelinca Dorin, Commented Nov 26, 2010 at 12:48

Sebastian Schmidt · Accepted Answer · 2010-11-26 13:52:45Z

3

The easiest way would be

#<lang (\w+=[^<]*(<[^>]+>)?[^<]+(?(2)</[^>]+>))>#

The Regex checks if a tag is matched and only then checks for ending tag.

If you want to catch also the fourth argument, you need to use

#<lang (\w+(=[^<]*(<[^>]+>)?[^<]+(?(3)</[^>]+>))?)>#

edited Nov 26, 2010 at 13:52

answered Nov 26, 2010 at 12:49

Sebastian Schmidt

1,0787 silver badges17 bronze badges

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3 Comments

Isis Over a year ago

EDIT: I CHANGE THE $var AND ADD third expression

Sebastian Schmidt Over a year ago

Should work aswell. I just tried it. It matches the first two and doesn't get the third lang.

Isis Over a year ago

Thank you.. but I have a problem.. <lang test4> .... test4 It is necessary that "test4" too was in the array.. For your tests: $var = '<lang test=<php>string</php>><lang test2=before<php>inside</php>><lang test3=int><lang test4>';

axelcoon · Accepted Answer · 2010-11-26 12:48:41Z

0

$var = '<lang test=<php>string</php>><lang test2=before<php>inside</php>>';
if (preg_match_all('#<lang (.*>)>#U', $var, $gg))
{
    var_dump($gg[1]);
}

answered Nov 26, 2010 at 12:48

axelcoon

813 bronze badges

Comments

Pascal H. · Accepted Answer · 2010-11-26 12:51:44Z

-1

I would do it this way:

preg_match("/<lang (.*)>/i", $var, $gg)

answered Nov 26, 2010 at 12:51

Pascal H.

548 bronze badges

3 Comments

Sebastian Schmidt Over a year ago

This would completly match <lang test=<php>string</php>><lang test2=before<php>inside</php>><lang test3=THIRD_WITHOUT_PHP_TAGS>

Pascal H. Over a year ago

@ S-Buzz but he says he wants to get all so why the downrep?

Sebastian Schmidt Over a year ago

He wants to get all three ones as a single match. Your regex matches the whole string

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