Compilation failed: POSIX collating elements are not supported at offset - php

Question

i would like transform a string to array with pattern. But my regex give me the warning.
this is a string:
$string = typ="bar" title="Example" enabled=true count=true style="float: left; width: 30%;"
My regex:
$regex='/(.*?)[=\"|=](.*?)\"*\s*/';
preg_match_all($regex, $string1, $matchesreg, PREG_SET_ORDER);
Whith the regex is the output not correct. The last array must be split further
$regex='/(.?)="(.?)"\s*/';
preg_match_all($regex, $string1, $matchesreg, PREG_SET_ORDER);
The output
Array
(
[0] => Array
(
[0] => typ="bar"
[1] => typ
[2] => bar
) ...
[2] => Array
(
[0] => enabled=true count=true style="float: left; width: 30%;"
[1] => enabled=true count=true style
[2] => float: left; width: 30%;
)
)
My desired output like:
php
Array
(
[0] => Array
(
[0] => typ="bar"
[1] => typ
[2] => bar
)
[1] => Array
(
[0] => title="Example"
[1] => title
[2] => Example
)
[2] => Array
(
[0] => enabled=true
[1] => enabled
[2] => true
)
[3] => Array
(
[0] => count=true
[1] => count
[2] => true
)
[4] => Array
(
[0] => style="float: left; width: 30%;"
[1] => style
[2] => float: left; width: 30%;
)
)

Answer 1

You may use
preg_match_all('~([^\s=]+)=(?|"([^"]*)"|(\S+))~', $s, $m, PREG_SET_ORDER, 0)
See the PHP demo
Details
([^\s=]+) - Group 1: one or more chars other than whitespace and =
= - a = char
(?|"([^"]*)"|(\S+)) - a branch reset group matching either of
"([^"]*)" - ", then any 0 or more chars other than " are captured into Group 2, and then " is matched
| - or
(\S+) - Group 2: one or more non-whitespace chars.

Answer 2

Your expression seems to be working fine. There were two = in your char list that I removed one of them:
(.*?)[=\"|](.*?)\"*\s*
You can modify/change your expressions in this link, if you wish.
RegEx Circuit
You can visualize your expressions in this link:
Code
$string1 = 'typ="bar" title="Example" enabled=true count=true style="float: left; width: 30%;';
$regex = '/(.*?)[=\"|](.*?)\"*\s*/s';
preg_match_all($regex, $string1, $matchesreg, PREG_SET_ORDER);
var_dump($matchesreg);
Output
array(7) {
[0]=>
array(3) {
[0]=>
string(5) "typ=""
[1]=>
string(3) "typ"
[2]=>
string(0) ""
}
[1]=>
array(3) {
[0]=>
string(5) "bar" "
[1]=>
string(3) "bar"
[2]=>
string(0) ""
}
[2]=>
array(3) {
[0]=>
string(7) "title=""
[1]=>
string(5) "title"
[2]=>
string(0) ""
}
[3]=>
array(3) {
[0]=>
string(9) "Example" "
[1]=>
string(7) "Example"
[2]=>
string(0) ""
}
[4]=>
array(3) {
[0]=>
string(8) "enabled="
[1]=>
string(7) "enabled"
[2]=>
string(0) ""
}
[5]=>
array(3) {
[0]=>
string(11) "true count="
[1]=>
string(10) "true count"
[2]=>
string(0) ""
}
[6]=>
array(3) {
[0]=>
string(12) "true style=""
[1]=>
string(10) "true style"
[2]=>
string(0) ""
}
}