Php Preg_Match获取数组中的引号字符串

Question

need to get the quoted string and unquoted string in a array

Sample Data

$string='tennissrchkey1 tennissrchkey2 "tennis srch key 3" "tennis srch key 4" "tennis srch key 5"';    

Desired Output

Array
(
    [0] => tennissrchkey1
    [1] => tennissrchkey2
    [2] => tennis srch key 3
    [3] => tennis srch key 4
    [4] => tennis srch key 5
)

So far trying with this but no luck yet

if (preg_match('/"([^"]+)"/', $string, $m)) {
    echo '<pre>';
    print_r($m);   
} else {
   //preg_match returns the number of matches found, 
   //so if here didn't match pattern
}

Any Help is greatly appreciated!!!

Thanks!!!

Answer 1

Use preg_match_all function to do a global match. (?|....) called branch reset group. Alternatives inside a branch reset group share the same capturing groups.

$re = '~(?|"([^"]*)"|(\S+))~m';
$str = 'tennissrchkey1 tennissrchkey2 "tennis srch key 3" "tennis srch key 4" "tennis srch key 5"';
preg_match_all($re, $str, $matches);
print_r($matches[1]);

DEMO

Output:

Array
(
    [0] => tennissrchkey1
    [1] => tennissrchkey2
    [2] => tennis srch key 3
    [3] => tennis srch key 4
    [4] => tennis srch key 5
)