I am using preg_match_all to filter out strings
The string which I have supplied in preg_match_all is
$text = "Friedric'h Wöhler"
after that I use
preg_match_all('/(\"[^"]+\"|[\\p{L}\\p{N}\\*\\-\\.\\?]+)/', $text, $arr, PREG_PATTERN_ORDER);
and the result i get when I print $arr is
Array
(
[0] => Array
(
[0] => friedric
[1] => h
[2] => w
[3] => ouml
[4] => hler
)
[1] => Array
(
[0] => friedric
[1] => h
[2] => w
[3] => ouml
[4] => hler
)
)
Somehow the ö character is replaced by ouml which I am not really sure how to figure this out
I am expecting following result
Array
(
[0] => Array
(
[0] => Friedric'h
[1] => Wöhler
)
)
Per nhahtdh's comment:
$text = "Friedric'h Wöhler";
preg_match_all('/"[^"]+"|[\p{L}\p{N}*.?\\\'-]+/u', $text, $arr, PREG_PATTERN_ORDER);
echo "<pre>";
print_r($arr);
echo "</pre>";
Gives
Array
(
[0] => Array
(
[0] => Friedric'h
[1] => Wöhler
)
)
If you think preg_match_all() is messy, you could take a look at pattern():
$p = '"[^"]+"|[\p{L}\p{N}*.?\\\'-]+'; // automatic delimiters
$text = "Friedric'h Wöhler";
$result = pattern($p)->match($text)->all();
Related
I have a string variable and want to extract year and number alone.
$val = '2015(15)';
preg_match ('/(.*?)\((.*?)\)/',$val,$match);
print_r($match);
Output: Array ( [0] => 2015(15) [1] => 2015 [2] => 15 )
Expected: the above is ok. or Array ( [0] => 2015 [1] => 15 )
$val = '2015';
preg_match ('/(.*?)\((.*?)\)/',$val,$match);
print_r($match);
Output: Array ( )
Expected: Array ( [0] => 2015 [1] => )
$val = '(15)';
preg_match ('/(.*?)\((.*?)\)/',$val,$match);
print_r($match);
Output: Array ( [0] => (15) [1] => [2] => 15 )
Expected: Array ( [0] => [1] => 15 )
Solution
Perhaps you can try something like,
/([0-9]{4})?(?:\(([0-9]*)\))?/
I wrote some a regular expression for PHP to parsing abbreviation from string.
My code:
$re = "/(([$]?+[А-Яа-я.]+[.]){1,})/";
$str = "г. Братск, ж.р. Южный Падун, ул. Мамырская, 62А, за остановкой";
preg_match_all($re, $str, $matches);
And this script return:
Array
(
[0] => Array
(
[0] => г.
[1] => ж.
[2] => л.
)
[1] => Array
(
[0] => г.
[1] => ж.
[2] => л.
)
[2] => Array
(
[0] => г.
[1] => ж.
[2] => л.
)
)
But it will work like this:
[1]=>'ж.р.', [2]=>'ул.'
It means, that my regex parse part of abbreviation, though I need to get full abbreviation.
For example on regex101.com it pretty works: https://regex101.com/r/wQ7lR7/1
How I can get full abbreviation ('г.','ж.р.','ул.')?
You need to use the unicode modifier, u, http://php.net/manual/en/reference.pcre.pattern.modifiers.php.
Example:
$re = "/(([$]?+[А-Яа-я.]+[.]){1,})/u";
$str = "г. Братск, ж.р. Южный Падун, ул. Мамырская, 62А, за остановкой";
preg_match_all($re, $str, $matches);
print_r($matches);
Output:
Array
(
[0] => Array
(
[0] => г.
[1] => ж.р.
[2] => ул.
)
[1] => Array
(
[0] => г.
[1] => ж.р.
[2] => ул.
)
[2] => Array
(
[0] => г.
[1] => ж.р.
[2] => ул.
)
)
This is my string.
$str = '"additional_details":" {"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}"}],';
I want to find all patterns that start with "{" and end with "}".
I am trying this:
preg_match_all( '/"(\{.*\})"/', $json, $matches );
print_r($matches);
It gives me an output of:
Array
(
[0] => Array
(
[0] => "{"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}"
)
[1] => Array
(
[0] => {"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}
)
)
See the array key 1. It gives all matches in one key and other details too.
I want an array of all matches. Like
Array
(
[0] => Array
(
[0] => "{"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}"}],"additional_details":"{"mode_of_transport":"air"}"
)
[1] => Array
(
[0] => {"mode_of_transport":"air"},
[1] => {"mode_of_transport":"air"},
[2] => {"mode_of_transport":"air"}
)
)
What should I change in my pattern.
Thanks
You can use:
preg_match_all( '/({[^}]*})/', $str, $matches );
print_r($matches[1]);
Array
(
[0] => {"mode_of_transport":"air"}
[1] => {"mode_of_transport":"air"}
[2] => {"mode_of_transport":"air"}
)
Since hours i try to find the correct regular expression. Let's say i have this:
$string = 'a=a.split("")';
and
$string = 'a=Ik(a,66)';
What i want to get as output is:
[1] => a
[2] => a
[3] => split
[4] => ""
and for the second one:
[1] => a
[2] => IK
[3] => a,66
I tried:
preg_match('#(.+)=(.+).(.+)[(](.+)[)]#', $string, $matches);
but this outputs:
Array
(
[0] => a=a.split("")
[1] => a
[2] => a.spl
[3] => t
[4] => ""
)
Why do i want this? I want to convert some javascript to PHP. For example:
function Hk(a) {
a = a.split("");
a = a.slice(1);
a = a.reverse();
a = Ik(a, 66);
a = a.slice(2);
a = a.reverse();
a = Ik(a, 12);
return a.join("")
}
function Ik(a, b) {
var c = a[0];
a[0] = a[b % a.length];
a[b] = c;
return a
}
# Edit: What i want is to convert it to PHP code and ouput it. I do not want to execute it.
For example the above javascript code should became something like this:
First function:
$a = str_split($a);
$a = array_slice($a, 1);
$a = array_reverse($a);
$a = self::Ik($a,66);
$a = array_slice($a, 2);
$a = array_reverse($a);
$a = self::Ik($a,12);
return implode("", $a);
second function:
$c = $a[0];
$a[0] = $a[$b%count($a)];
$a[$b] = $c;
return $a;
The function part itself is not imporant. I need only the logic in the function itself.
You might want to consider preg_split:
$arr = preg_split('/[=()]/', 'a=a.split("")', -1, PREG_SPLIT_NO_EMPTY);
Array
(
[0] => a
[1] => a.split
[2] => ""
)
$arr = preg_split('/[=()]/', 'a=Ik(a,66)', -1, PREG_SPLIT_NO_EMPTY);
Array
(
[0] => a
[1] => Ik
[2] => a,66
)
With php PCRE this should work for both patterns, even if you have different array elements filled, depending which pattern matches. I guess you can figure it our with testing the elements for nil etc.
This is done with an assertion and lookahead (do we have a dot, which results in one element more):
([^=]+)=(?(?=.+\.)([^.]+)\.([^.]+)|([^.]+))\((.+)\)
This is what comes up:
(
[0] => Array
(
[0] => a=Ik(a,66)
)
[1] => Array
(
[0] => a
)
[2] => Array
(
[0] =>
)
[3] => Array
(
[0] =>
)
[4] => Array
(
[0] => Ik
)
[5] => Array
(
[0] => a,66
)
)
and this one:
(
[0] => Array
(
[0] => a=a.split("")
)
[1] => Array
(
[0] => a
)
[2] => Array
(
[0] => a
)
[3] => Array
(
[0] => split
)
[4] => Array
(
[0] =>
)
[5] => Array
(
[0] => ""
)
)
Hope this is of help ;)
Consider that i have the string,
$string = 'tag2 display="users" limit="5"';
Using the preg_match_all function, i need to get the output
Required o/p
Array
(
[0] => Array
(
[0] => tag2
[1] => tag2
[2] =>
)
[1] => Array
(
[0] => display="users"
[1] => display
[2] => users
)
[2] => Array
(
[0] => limit="5"
[1] => limit
[2] => 5
)
)
I tried using this pattern '/([^=\s]+)="([^"]+)"/' but it is not recognizing the parameter with no value (in this case tag2) Instead it gives the output
What I am getting
Array
(
[0] => Array
(
[0] => display="users"
[1] => display
[2] => users
)
[1] => Array
(
[0] => limit="5"
[1] => limit
[2] => 5
)
)
What will be the pattern for getting the required output ?
EDIT 1: I also need to get the attributes which are not wrapped with quotes ex: attr=val. Sorry for not mentioning before.
Try this:
<?php
$string = 'tag2 display="users" limit="5"';
preg_match_all('/([^=\s]+)(="([^"]+)")?/', $string, $res);
foreach ($res[0] as $r => $v) {
$o[] = array($res[0][$r], $res[1][$r], $res[3][$r]);
}
print_r($o);
?>
It outputs me:
Array
(
[0] => Array
(
[0] => tag2
[1] => tag2
[2] =>
)
[1] => Array
(
[0] => display="users"
[1] => display
[2] => users
)
[2] => Array
(
[0] => limit="5"
[1] => limit
[2] => 5
)
)
I think it's not fully possible to give you with one call what you're looking for, but this is pretty close:
$string = 'tag2 display="users" limit=5';
preg_match_all('/([^=\s]+)(?:="?([^"]+)"?|())?/', $string, $res, PREG_SET_ORDER);
print_r($res);
Output:
Array
(
[0] => Array
(
[0] => tag2
[1] => tag2
[2] =>
[3] =>
)
[1] => Array
(
[0] => display="users"
[1] => display
[2] => users
)
[2] => Array
(
[0] => limit=5
[1] => limit
[2] => 5
)
)
As you can see, the first element has no value, I tried to work around that and offer an empty match now. So this builds the array you were asking for, but has an additional entry on the empty attribute.
However the main point is the PREG_SET_ORDER flag of preg_match_all. Maybe you can live with this output already.
Maybe you're interested in this litte snippet that parses all sorts of attribute styles. <div class="hello" id=foobar style='display:none'> is valid html(5), not pretty, I know…
<?php
$string = '<tag2 display="users" limit="5">';
$attributes = array();
$pattern = "/\s+(?<name>[a-z0-9-]+)=(((?<quotes>['\"])(?<value>.*?)\k<quotes>)|(?<value2>[^'\" ]+))/i";
preg_match_all($pattern, $source, $matches, PREG_SET_ORDER);
foreach ($matches as $match) {
$attributes[$match['name']] = $match['value'] ?: $match['value2'];
}
var_dump($attributes);
will give you
$attributes = array(
'display' => 'users',
'limit' => '5',
);