将字符串分成关联数组

Question

I have a string:

$string = 'A0695/16 NOTAMN Q) EHAA/QARLT/I /NBO/E /000/999/5155N00430E073 A) EHAA B) 1605260001 C) 1608260900 EST E) REF AIP NETHERLANDS ENR 3.2 UT601 ADD TO ROUTE REMARKS: NOT AVBL FOR TRAFFIC DEP/ARR ETNG, EDDK AND ETNN DURING THE OPENING OF EHEH 0600-2300 (0500-2200). THESE FLIGHTS WILL HAVE TO REROUTE.';

I would like to split this string into an associative array.

$result['Q)'] = 'EHAA/QARLT/I /NBO/E /000/999/5155N00430E073';
$result['A)'] = 'EHAA';
$result['B)'] = '1605260001';
$result['C)'] = '1608260900 EST';

etc.

I managed to get it into an array with:

$result = preg_split("/.\)/", $string);

It gives me an array but I need the keys to be 'a)', 'b)' etc.

Can anyone help me with this?

Answer 1

The solution using preg_match_all function with specific regexp pattern(named submasks) and array_combine function(to get a respective key/value pairs):

$string = 'A0695/16 NOTAMN Q) EHAA/QARLT/I /NBO/E /000/999/5155N00430E073 A) EHAA B) 1605260001 C) 1608260900 EST E) REF AIP NETHERLANDS ENR 3.2 UT601 ADD TO ROUTE REMARKS: NOT AVBL FOR TRAFFIC DEP/ARR ETNG, EDDK AND ETNN DURING THE OPENING OF EHEH 0600-2300 (0500-2200). THESE FLIGHTS WILL HAVE TO REROUTE.';

preg_match_all("/(?<k>[A-Z]\)) (?<v>.+?)(?= [A-Z]\)|$)/", $string, $matches);

// 'k'/'v' are key/value
$result = array_combine($matches['k'], $matches['v']);

print_r($result);

The output:

Array
(
    [Q)] => EHAA/QARLT/I /NBO/E /000/999/5155N00430E073
    [A)] => EHAA
    [B)] => 1605260001
    [C)] => 1608260900 EST
    [E)] => REF AIP NETHERLANDS ENR 3.2 UT601 ADD TO ROUTE REMARKS: NOT AVBL FOR TRAFFIC DEP/ARR ETNG, EDDK AND ETNN DURING THE OPENING OF EHEH 0600-2300 (0500-2200). THESE FLIGHTS WILL HAVE TO REROUTE.
)