str_getcsv('1 2 "33" 4 " 55 " 6 "\" 55 \"" +100500', ' ');
array (size=8)
0 => string '1' (length=1)
1 => string '2' (length=1)
2 => string '33' (length=2)
3 => string '4' (length=1)
4 => string ' 55 ' (length=4)
5 => string '6' (length=1)
6 => string '\" 55 \"' (length=8)
7 => string '+100500' (length=7)