This question already has answers here:
Explode string by one or more spaces or tabs
(8 answers)
Closed 7 months ago.
With the following string:
$str = '["one","two"],a,["three","four"],a,,a,["five","six"]';
preg_split( delimiter pattern, $str );
How would I have to set up the delimiter pattern to obtain this result:
$arr[0] = '["one","two"]';
$arr[1] = '["three","four"]';
$arr[2] = '["five","six"]';
In other words, is there a way to split at the pattern ',a,' AND ',a,,a,' BUT check for ',a,,a,' first because ',a,' is a sub string of ',a,,a,'?
Thanks in advance!
If it can only be ,a, and ,a,,a,, then this should be enough:
preg_split("/(,a,)+/", $str);
It looks like what you're actually trying to do is separate out the square bracketed parts. You could do that like so:
$arr = preg_split("/(?<=\])[^[]*(?=\[)/",$str);
Take a look at this code:
$result = array();
preg_match_all("/(\[[^\]]*\])/", '["one","two"],a,["three","four"],a,,a,["five","six"]', $result);
echo '<pre>' . print_r($result, true);
It will return:
Array
(
[0] => Array
(
[0] => ["one","two"]
[1] => ["three","four"]
[2] => ["five","six"]
)
[1] => Array
(
[0] => ["one","two"]
[1] => ["three","four"]
[2] => ["five","six"]
)
)
Related
After instructing clients to input only
number comma number comma number
(no set length, but generally < 10), the results of their input have been, erm, unpredictable.
Given the following example input:
3,6 ,bannana,5,,*,
How could I most simply, and reliably end up with:
3,6,5
So far I am trying a combination:
$test= trim($test,","); //Remove any leading or trailing commas
$test= preg_replace('/\s+/', '', $test);; //Remove any whitespace
$test= preg_replace("/[^0-9]/", ",", $test); //Replace any non-number with a comma
But before I keep throwing things at it...is there an elegant way, probably from a regex boffin!
In a purely abstract sense this is what I'd do:
$test = array_filter(array_map('trim',explode(",",$test)),'is_numeric')
Example:
http://sandbox.onlinephpfunctions.com/code/753f4a833e8ff07cd9c7bd780708f7aafd20d01d
<?php
$str = '3,6 ,bannana,5,,*,';
$str = explode(',', $str);
$newArray = array_map(function($val){
return is_numeric(trim($val)) ? trim($val) : '';
}, $str);
print_r(array_filter($newArray)); // <-- this will give you array
echo implode(',',array_filter($newArray)); // <--- this give you string
?>
Here's an example using regex,
$string = '3,6 ,bannana,5,-6,*,';
preg_match_all('#(-?[0-9]+)#',$string,$matches);
print_r($matches);
will output
Array
(
[0] => Array
(
[0] => 3
[1] => 6
[2] => 5
[3] => -6
)
[1] => Array
(
[0] => 3
[1] => 6
[2] => 5
[3] => -6
)
)
Use $matches[0] and you should be on your way.
If you don't need negative numbers just remove the first bit in the in the regex rule.
This question already has answers here:
PHP case-insensitive explode()
(3 answers)
Closed 6 years ago.
I have the following code:
$string = "zero Or one OR two or three";
print_r(explode("or", $string));
Right now this results in:
Array ( [0] => zero Or one OR two [1] => three )
But I want to ignore the case of the delimiter so it works with Or, OR, ... and that my result is:
Array ( [0] => zero [1] => one [2] => two [3] => three )
How can I do this?
Use preg_split()
$string = "zero Or one OR two or three";
$keywords = preg_split("/or/i", $string);
echo '<pre>';print_r($keywords);echo '</pre>';
Outputs:
Array
(
[0] => zero
[1] => one
[2] => two
[3] => three
)
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Convert a string into list of arrays
I have a string code=AA&price=10&user_id=5.initially i exploded first with & and then by = but i getting.
array(
[0] =>code
[0] =>AA
[0] =>price
[0] =>10
[0] =>user_id
[0] =>5
)
My aim is to show
array(
[code] => AA
[price] => 10
[user_id] => 5
)
parse_str($str, $values);
var_dump($values);
You are parsing a URL encoded format, use the already existing parse_str to parse it.
$string = 'code=AA&price=10&user_id=5';
$params = array();
parse_str($string, $params);
print_r($params);
http://php.net/manual/en/function.parse-str.php
parse_str — Parses the string into variables
parse_str('code=AA&price=10&user_id=5', $outputArray);
I get a string that looks like this
<br>
ACCEPT:YES
<br>
SMMD:tv240245ce
<br>
is contained in a variable $_session['result']
I am trying to parse through this string and get the following either in an array or as separate variables
ACCEPT:YES
tv240245ce
I first tried
to explode the string using as the delimiter, and that did not work
then I already tried
$yes = explode(":", strip_tags($_SESSION['result']));
echo print_r($yes);
which gives me an array like so
Array ( [0] => ACCEPT [1] => YESSEED [2] => tv240245ce ) 1
which gives me one of my answers.
Please what would be a great way of trying to achieve what I am trying to achieve?
is there a way to get rid of the first and last?
then use the remaining one as a delimiter to explode the string ?
or what's the best way to go about this ?
This will do it:
$data=preg_split('/\s?<br>\s?/', str_replace('SMMD:','',$data), NULL, PREG_SPLIT_NO_EMPTY);
See example here:
CodePad
You can also skip caring about the spurious <br> and treat the whole string as key:value format with a simple regex like:
preg_match_all('/^(\w+):(.*)/', $text, $result, PREG_SET_ORDER);
This requires that you really have line breaks in it though. Gives you a $result list which is easy to convert into an associative array afterwards:
[0] => Array
(
[0] => ACCEPT:YES
[1] => ACCEPT
[2] => YES
)
[1] => Array
(
[0] => SMMD:tv240245ce
[1] => SMMD
[2] => tv240245ce
)
First, do a str_replace to remove all instances of "SMMD:". Then, Explode on "< b r >\n". Sorry for weird spaced, it was encoding the line break.
Include the new line character and you should get the array you want:
$mystr = str_replace( 'SMMD:', '', $mystr );
$res_array = explode( "<br>\n", $mystr );
Right now i'm trying to get this:
Array
(
[0] => hello
[1] =>
[2] => goodbye
)
Where index 1 is the empty string.
$toBeSplit= 'hello,,goodbye';
$textSplitted = preg_split('/[,]+/', $toBeSplit, -1);
$textSplitted looks like this:
Array
(
[0] => hello
[1] => goodbye
)
I'm using PHP 5.3.2
[,]+ means one or more comma characters while as much as possible is matched. Use just /,/ and it works:
$textSplitted = preg_split('/,/', $toBeSplit, -1);
But you don’t even need regular expression:
$textSplitted = explode(',', $toBeSplit);
How about this:
$textSplitted = preg_split('/,/', $toBeSplit, -1);
Your split regex was grabbing all the commas, not just one.
Your pattern splits the text using a sequence of commas as separator (its syntax also isn't perfect, as you're using a character class for no reason), so two (or two hundred) commas count just as one.
Anyway, since your just using a literal character as separator, use explode():
$str = 'hello,,goodbye';
print_r(explode(',', $str));
output:
Array
(
[0] => hello
[1] =>
[2] => goodbye
)