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php preg_match, matching when 2 words might come in random sequence
(2 answers)
Closed 6 years ago.
How to make a regular expression in preg_match_all "and"?
The mouse to nibble the cork from the bottle russia king.
$n = preg_match_all("/cork&bottle/i", mb_strtolower($y['foo'], 'UTF-8'), $matches);
/cork&bottle/i Does not work
This is the way I'd use:
$string = 'The mouse to nibble the cork from the bottle russia king.';
preg_match_all("/^(?=.*(cork))(?=.*(bottle))/i", $string, $matches);
print_r($matches);
Output:
Array
(
[0] => Array
(
[0] =>
)
[1] => Array
(
[0] => cork
)
[2] => Array
(
[0] => bottle
)
)
Explanation:
/ : regex delimiter
^ : begining of line
(?= : start lookahead
.* : 0 or more any character
(\bcork\b) : capture group #1 that contains "cork" with word boundaries
) : end of look ahead
(?= : start lookahead
.* : 0 or more any character
(\bottle\b) : capture group #2 that contains "bottle" with word boundaries
) : end of look ahead
/i : regex delimiter, case insensitive
Related
I am trying to find sentences between pipe | and dot ., e.g.
| This is one. This is two.
The regex pattern I use :
preg_match_all('/(:\s|\|+)(.*?)(\.|!|\?)/s', $file0, $matches);
So far I could not manage to capture both sentences. The regex I use captures only the first sentence.
How can I solve this problem?
EDIT: as it may seen from the regex, I am trying to find the sentences BETWEEN (: or |) AND (. or ! or ?)
Column or pipe indicates starting point for sentences.
The sentences might be:
: Sentence one. Sentence two. Sentence three.
| Sentence one. Sentence two?
| Sentence one. Sentence two! Sentence three?
I would keep it simple and just match on:
\s*[^.|]+\s*
This says to match any content not consisting of pipes or full stops, and it also trims optional whitespace before/after each sentence.
$input = "| This is one. This is two.";
preg_match_all('/\s*[^.|]+\s*/s', $input, $matches);
print_r($matches[0]);
This prints:
Array
(
[0] => This is one
[1] => This is two
)
This does the job:
$str = '| This is one. This is two.';
preg_match_all('/(?:\s|\|)+(.*?)(?=[.!?])/', $str, $m);
print_r($m)
Output:
Array
(
[0] => Array
(
[0] => | This is one
[1] => This is two
)
[1] => Array
(
[0] => This is one
[1] => This is two
)
)
Demo & explanation
Another option is to make use of \G to get iterative matches asserting the position at the end of the previous match and capture the values in a capturing group matching a dot and 0+ horizontal whitespace chars after.
(?:\|\h*|\G(?!^))([^.\r\n]+)\.\h*
In parts
(?: Non capturing group
\|\h* Match | and 0+ horizontal whitespace chars
| Or
\G(?!^) Assert position at the end of previous match
) Close group
( Capture group 1
- [^.\r\n]+ Match 1+ times any char other than . or a newline
) Close group
\.\h* Match 1 . and 0+ horizontal whitespace chars
Regex demo | Php demo
For example
$re = '/(?:\|\h*|\G(?!^))([^.\r\n]+)\.\h*/';
$str = '| This is one. This is two.
John loves Mary.| This is one. This is two.';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
print_r($matches);
Output
Array
(
[0] => Array
(
[0] => | This is one.
[1] => This is one
)
[1] => Array
(
[0] => This is two
[1] => This is tw
)
)
To keep it simple, find everything between | and . and then split:
$input = "John loves Mary. | This is one. This is two. | Sentence 1. Sentence 2.";
preg_match_all('/\|\s*([^|]+)\./', $input, $matches);
if ($matches) {
foreach($matches[1] as $match) {
print_r(preg_split('/\.\s*/', $match));
}
}
Prints:
Array
(
[0] => This is one
[1] => This is two
)
Array
(
[0] => Sentence 1
[1] => Sentence 2
)
Valid example
12[red,green],13[xs,xl,xxl,some other text with chars like _&-##%]
number[anythingBut ()[]{},anythingBut ()[]{}](,number[anythingBut ()[]{},anythingBut ()[]{}]) or nothing
Full match 12[red,green]
Group 1 12
Group 2 red,green
Full match 13[xs,xl,xxl,some other text with chars like _&-##%]
Group 1 13
Group 2 xs,xl,xxl,some other text with chars like _&-##%
Not valid example
13[xs,xl,xxl 9974-?ds12[dfgd,dfgd]]
What I tried is this: (\d+(?=\[))\[([^\(\[\{\}\]\)]+)\], regex101 link with what I tried, but this also matches wrong input like given in the example.
If you just need to validate the input, you can add some anchors:
^(?:\d+\[[^\(\[\{\}\]\)]+\](?:,|$))+$
Regex101
If you also need to get all the matching parts, you can use another regex. Using only one will not work well.
$in = '12[red,green],13[xs,xl,xxl,some other text with chars like _&-##%],13[xs,xl,xxl 9974-?ds12[dfgd,dfgd]]';
preg_match_all('/(\d+)\[([^][{}()]+)(?=\](?:,|$))/', $in, $matches);
print_r($matches);
Output:
Array
(
[0] => Array
(
[0] => 12[red,green
[1] => 13[xs,xl,xxl,some other text with chars like _&-##%
)
[1] => Array
(
[0] => 12
[1] => 13
)
[2] => Array
(
[0] => red,green
[1] => xs,xl,xxl,some other text with chars like _&-##%
)
)
Explanation:
/ : regex delimiter
(\d+) : group 1, 1 or more digits
\[ : open square bracket
( : start group 2
[^][{}()]+ : 1 or more any character that is not open or close parenthesis, brackets or square brackets
) : end group 2
(?= : positive lookahead, make sure we have after
\] : a close square bracket
(?:,|$) : non capture group, a comma or end of string
) : end group 2
/ : regex delimiter
I have below string. This string having data (#[ID:username__FULLNAME]) of three users mentioned. I want to extract them. I have tried below code but not getting desired results.
ID is integer type
username and FULLNAME may contain numbers, letter and all kind of special chars.
$t = 'Hi #[4232:mark__MΛRK ATTLEY] how are you ?
Hi #[4232:ryan__RYΛN вυηту] how are you ?
Hi #[4232:david__DΛVID शाहिद ] how are you ?
';
My PHP CODE:
$pattern = "|(?:(#\[[0-9]+:[\s\S(?!\])]+\]*))|";
preg_match_all($pattern, $string, $mentionList, PREG_PATTERN_ORDER);
print_r($mentionList);
Current Result:
Array
(
[0] => Array
(
[0] => #[4232:mark__MΛRK ATTLEY] how are you ?
Hi #[4232:ryan__RYΛN вυηту] how are you ?
Hi #[4232:david__DΛVID शाहिद] how are you ?
)
[1] => Array
(
[0] => #[4232:mark__MΛRK ATTLEY] how are you ?
Hi #[4232:ryan__RYΛN вυηту] how are you ?
Hi #[4232:david__DΛVID शाहिद] how are you ?
)
)
Expected Result:
Array
(
[0] => Array
(
[0] => #[4232:mark__MΛRK ATTLEY]
[1] => #[4232:ryan__RYΛN вυηту]
[2] => #[4232:david__DΛVID शाहिद ]
)
)
Can someone help me getting the desired results?
Thanks.
You can use the following regex: #\[.+\] (demo) that gets you all you have in [] plus the front #.
Check this working php demo
You can use this regex with 3 captured groups:
/#\[(\d+):(\S+)\h+(\S+)\h*\]/
RegEx Demo
RegEx Explanation:
#: Match literal #
\[: Match literal [
(\d+): Match 1+ digits and capture it in group #1 for id
:: Match literal :
(\S+): Match 1+ non-whitespace characters and capture it in group #2 for firstName
\h+: Match 1 or more horizontal whitespaces
(\S+): Match 1+ non-whitespace characters and capture it in group #3 for lastName
\h*: Match 0 or more horizontal whitespaces
\]: Match literal ]
Not sure if this will give you the exact output you are looking for, but yor regex is a bit too greedy. You can simplify it like this: (?:#\[[0-9]+.+?])
This should return the captured groups separately.
Not sure if the anonymous capture group is needed so it could be simplified down to (#\[[0-9]+.+?]) or possibly even (#\[.+?]).
so I need to extract the ticket number "Ticket#999999" from a string.. how do i do this using regex.
my current regex is working if I have more than one number in the Ticket#9999.. but if I only have Ticket#9 it's not working please help.
current regex.
preg_match_all('/(Ticket#[0-9])\w\d+/i',$data,$matches);
thank you.
In your pattern [0-9] matches 1 digit, \w matches another digit and \d+ matches 1+ digits, thus requiring 3 digits after #.
Use
preg_match_all('/Ticket#([0-9]+)/i',$data,$matches);
This will match:
Ticket# - a literal string Ticket#
([0-9]+) - Group 1 capturing 1 or more digits.
PHP demo:
$data = "Ticket#999999 ticket#9";
preg_match_all('/Ticket#([0-9]+)/i',$data,$matches, PREG_SET_ORDER);
print_r($matches);
Output:
Array
(
[0] => Array
(
[0] => Ticket#999999
[1] => 999999
)
[1] => Array
(
[0] => ticket#9
[1] => 9
)
)
Example input:
hjkhwe5boijdfg
I need to split this into 3 variables as below:
hjkhwe5 (any length, always ends in some number (can be any number))
b (always a single letter, can be any letter)
oijdfg (everything remaining at the
end, numbers or letters in any combination)
I've got the PHP preg_match all setup but have no idea how to do this complex regex. Could someone give me a hand?
Have a try with:
$str = 'hjkhwe5boijdfg';
preg_match("/^([a-z]+\d+)([a-z])(.*)$/", $str, $m);
print_r($m);
output:
Array
(
[0] => hjkhwe5boijdfg
[1] => hjkhwe5
[2] => b
[3] => oijdfg
)
Explanation:
^ : begining of line
( : 1rst group
[a-z]+ : 1 or more letters
\d+ : followed by 1 or more digit
) : end of group 1
( : 2nd group
[a-z] : 1 letter
) : end group 2
( : 3rd group
.* : any number of any char
) : end group 3
$
You can use preg_match as:
$str = 'hjkhwe5boijdfg';
if(preg_match('/^(\D*\d+)(\w)(.*)$/',$str,$m)) {
// $m[1] has part 1, $m[2] has part 2 and $m[3] has part 3.
}
See it