Re: [PHP] Re: Regular Expression Backreference in subpattern.
Shiplu wrote:
Sorry The previous code was wrong,
Its the correct version,
$x = a b;c d;e f;;
preg_match('/(?Pkeys\w) (?Pvalues\w)/',$x,$m);
print_r($m);
Now I am using backrefrence \1 in in ?P option like (?P\1\d+).
and I got the error.
thought I best update for courtesy sake; I spent a good chunk of time on
this yesterday, read all the regex stuff I could find, and the closest I
could get was to use recursive sub patterns, however there was no way to
make a named subpattern name (keys) be a backreference / variable.. ie
$1 \1 \\1 will never work.
even using this method you're still going to have to combine the two
arrays to get what you want ($m['keys'] with $m['values'])
Regards do let me know if you manage!
Nathan
ps: there may be something in the ?name syntax; I don't think so though..
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[PHP] Re: Regular Expression Backreference in subpattern.
Shiplu wrote:
The string is tdcharge/tdtd100/td.
I want and array( charge=100).
I am using this regular expression,
'/td([^]+)\/tdtd(?P\1\d+)\/td/'.
But its not working..
I get this error.,
PHP Warning: preg_match(): Compilation failed: syntax error after (?P
at offset 25 in E:\src\php\WebEngine\- on line 4
any idea?
$string = 'tdcharge/tdtd100/td';
preg_match('|td(.*)/tdtd(\d+)/td|', $string , $out);
print_r( $out );
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[PHP] Re: Regular Expression Backreference in subpattern.
What's the complete row? e.g., trtdcharge/tdtd100/td/tr Or, are there other td cells in the row? Shiplu wrote: The string is tdcharge/tdtd100/td. I want and array( charge=100). I am using this regular expression, '/td([^]+)\/tdtd(?P\1\d+)\/td/'. But its not working.. I get this error., PHP Warning: preg_match(): Compilation failed: syntax error after (?P at offset 25 in E:\src\php\WebEngine\- on line 4 any idea? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Regular Expression Backreference in subpattern.
On 9/27/08, Nathan Rixham [EMAIL PROTECTED] wrote:
Shiplu wrote:
The string is tdcharge/tdtd100/td.
I want and array( charge=100).
I am using this regular expression,
'/td([^]+)\/tdtd(?P\1\d+)\/td/'.
But its not working..
I get this error.,
PHP Warning: preg_match(): Compilation failed: syntax error after (?P
at offset 25 in E:\src\php\WebEngine\- on line 4
any idea?
$string = 'tdcharge/tdtd100/td';
preg_match('|td(.*)/tdtd(\d+)/td|', $string ,
$out);
print_r( $out );
You didnt get my point,.
your codes output will be
Array (2) {
[0] = charge,
[1]= 100
}
But I want this,
Array (1) {
charge = 100
}
Thats why I used ?Pname syntax, In name I used \1, means the last
matched patter would be the key.
I can do this by preg_match_all(), then array_combine() funciton.
But I was thinking if I could make it with calling only preg_match_all
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Re: [PHP] Re: Regular Expression Backreference in subpattern.
On 9/27/08, Al [EMAIL PROTECTED] wrote: What's the complete row? e.g., trtdcharge/tdtd100/td/tr Or, are there other td cells in the row? No TD cells. forget the real world problem. I made the exact replica of that. I need the sample work. -- Blog: http://talk.cmyweb.net/ Follow me: http://twitter.com/shiplu -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Regular Expression Backreference in subpattern.
Shiplu wrote: The string is tdcharge/tdtd100/td. I want and array( charge=100). I am using this regular expression, '/td([^]+)\/tdtd(?P\1\d+)\/td/'. But its not working.. I get this error., PHP Warning: preg_match(): Compilation failed: syntax error after (?P at offset 25 in E:\src\php\WebEngine\- on line 4 any idea? $pattern=%td(\w*)/tdtd(\d+)/td%; $str=tdcharge/tdtd100/td; preg_match($pattern, $str, $matches); Make a new array with $new= array($matches[1] = $matches[2]); -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Regular Expression Backreference in subpattern.
Shiplu wrote:
The string is tdcharge/tdtd100/td.
I want and array( charge=100).
I am using this regular expression,
'/td([^]+)\/tdtd(?P\1\d+)\/td/'.
But its not working..
I get this error.,
PHP Warning: preg_match(): Compilation failed: syntax error after (?P
at offset 25 in E:\src\php\WebEngine\- on line 4
any idea?
it seem's everybody is giving you the same answers; here's a definitive
look at the problem (as far as I'm aware)
all preg_* functions can only return back string's, or array's of
strings; there is no method of returning back an associative array as
you would like; the closest you can get is by using preg_replace or
preg_replace_callback as follows:
print_r( preg_replace_callback('|td(.*)/tdtd(\d+)/td|',
create_function(
'$matches',
'return array($matches[0],$matches[1]);'
), $string) );
this will fall as the internals of preg* casts the array to a string
alternative:
print_r( preg_replace('|td(.*)/tdtd(\d+)/td|e',
'array($1,$2)', $string) );
this will also fail as the internals of preg* casts the array to a string.
similarly all other options you could go down such as simple explodes,
strip_tags or even more complex stream filters will only allow you to
return strings, or numerical array's of strings.
This leaves you high and dry I'm afraid - the only thing for it is to
create a simple function to handle this for you; something like
function td_thing( $string ) {
$a = preg_replace('|td(.*)/tdtd(\d+)/td|e', '$1 $2', $string);
$b = explode(' ', $a);
return array($b[0] = $b[1]);
}
maybe just maybe you or I or somebody else can find a way to do this
easily in one line; but for now a function similar to above is the best
you can do..
Regards
Nathan
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Re: [PHP] Re: Regular Expression Backreference in subpattern.
On 9/27/08, Nathan Rixham [EMAIL PROTECTED] wrote:
Shiplu wrote:
The string is tdcharge/tdtd100/td.
I want and array( charge=100).
I am using this regular expression,
'/td([^]+)\/tdtd(?P\1\d+)\/td/'.
But its not working..
I get this error.,
PHP Warning: preg_match(): Compilation failed: syntax error after (?P
at offset 25 in E:\src\php\WebEngine\- on line 4
any idea?
it seem's everybody is giving you the same answers; here's a definitive
look at the problem (as far as I'm aware)
all preg_* functions can only return back string's, or array's of strings;
there is no method of returning back an associative array as you would like;
you can return an array which has friendly name. run the following code,
$x = a b;c d;e f;;
preg_match('/(?Pkeys\w) (?Pvalues\w)/',$x,$m);
print_r($m);
allso run this code too for backreference idea,
$y = 'a a;b c;d d;e f;f g;h i';
preg_match_all('/(\w) (\1)/',$y,$m);
print_r($m);
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Re: [PHP] Re: Regular Expression Backreference in subpattern.
Sorry The previous code was wrong,
Its the correct version,
$x = a b;c d;e f;;
preg_match('/(?Pkeys\w) (?Pvalues\w)/',$x,$m);
print_r($m);
Now I am using backrefrence \1 in in ?P option like (?P\1\d+).
and I got the error.
--
Blog: http://talk.cmyweb.net/
Follow me: http://twitter.com/shiplu
Stop Top Posting.
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