Keep text within quotation intact, while splitting text - php

Question

I need the data in the string [$str] that is within quotes to not split.
In this case, "Accounting company" should be kept in one string, not spread.
<?php
$str =
'#PROGRAM "Accounting company" 98.2
#GENERATED 2020715 "SE"';
$data = explode("\n", $str);
foreach($data as &$value){
$value = preg_split("/\s+/", $value);
}
var_dump($data);
Result:
array(2) {
[0]=>
array(4) {
[0]=>
string(8) "#PROGRAM"
[1]=>
string(11) ""Accounting" // Unwanted split
[2]=>
string(8) "company"" // Unwanted split
[3]=>
string(4) "98.2"
}
[1]=>
&array(4) {
[0]=>
string(0) ""
[1]=>
string(10) "#GENERATED"
[2]=>
string(7) "2020715"
[3]=>
string(4) ""SE""
}
}
Wanted result:
array(2) {
[0]=>
array(4) {
[0]=>
string(8) "#PROGRAM"
[1]=>
string(18) ""Accounting company"
[2]=>
string(4) "98.2"
}
[1]=>
&array(4) {
[0]=>
string(0) ""
[1]=>
string(10) "#GENERATED"
[2]=>
string(7) "2020715"
[3]=>
string(4) ""SE""
}
}

Answer 1

You could use a SKIP FAIL pattern to skip matching values from an opening till closing double quote and then match 1+ horizontal whitespace chars to split on
"[^"]*"(*SKIP)(*FAIL)|\h+
Regex demo
$str =
'#PROGRAM "Accounting company" 98.2
#GENERATED 2020715 "SE"';
$data = explode("\n", $str);
foreach($data as &$value){
$value = preg_split("/\"[^\"]*\"(*SKIP)(*FAIL)|\h+/", $value);
}
print_r($data);
Output
Array
(
[0] => #PROGRAM
[1] => "Accounting company"
[2] => 98.2
)
Array
(
[0] =>
[1] => #GENERATED
[2] => 2020715
[3] => "SE"
)
If you don't want the empty entry in the second array, you could use the PREG_SPLIT_NO_EMPTY flag:
$value = preg_split("/\"[^\"]*\"(*SKIP)(*FAIL)|\h+/", $value, -1, PREG_SPLIT_NO_EMPTY);
Php demo

Answer 2

Here a solution without regex
$str =
'#PROGRAM "Accounting company" 98.2
#GENERATED 2020715 "SE"';
$quoted = false;
$index = 0;
$data = [];
$rows = explode("\n", $str);
foreach($rows as $row) {
$temp = [];
for ($i = 0; $i < strlen($row); $i++) {
if ($row[$i] === "\"") $quoted = !$quoted;
if ($row[$i] === " " && !$quoted) {
$index++;
continue;
}
$temp[$index] = ($temp[$index] ?? "") . $row[$i];
}
$data[] = array_values($temp);
}
var_dump($data);
Result
array(2) {
[0]=>
array(3) {
[0]=>
string(8) "#PROGRAM"
[1]=>
string(20) ""Accounting company""
[2]=>
string(4) "98.2"
}
[1]=>
array(3) {
[0]=>
string(10) "#GENERATED"
[1]=>
string(7) "2020715"
[2]=>
string(4) ""SE""
}
}
Demo
Still figuring out a regex solution though :)
In case you want to keep the empty element at [1][0]: Demo