I need help making a command line parser

[Anon]

If i have

$cmdline = "arg0 'arg1a arg1b' arg2";

how can I parse it to

$args[0] = "arg0";
$args[1] = "arg1a arg1b";
$args[2] = "arg2";

instead of

$args[0] = "arg0";
$args[1] = "'arg1a";
$args[2] = "arg1b'";
$args[3] = "arg2";

(as explode does)?

[Anon]

preg_match_all("/[^{'\s]+|'.*?'/",} $cmdline, $matches);
$args=$matches[0];

Match a consecutive sequences of non-whitespace chars that do not contain an apostrophe, or an apostrophe followed by some chars followed by another apostrophe.