$re = '/(((((#)|())(([ \t\n]+|()))([a-zA-Z0-9]+)([ \t\n]+))|())((([ \t\n]+|()))((move|mult)|([a-z]+)))((([ \t\n]+|()))(:))((([ \t\n]+|()))([a-zA-Z0-9,&\* \t\"\n\[\]]+))(;))|((([ \t\n]+|()))((save|end)|([a-z]+))(([ \t\n]+|()))(;))/';
$str = '
{
stream: gogo;
move: some, reg1;
#jix mult: &num, reg2;
push: reg2;
sus : 0x20;
add : him, her;
#goto
jump: loop;
dec : him, *reg2;
#get
add : onu, buna;
jump: goto;
#mydear move: "moses", rgb[8];
save ;
end ;
}
{
move: mos, reg1;
mult: &num, reg2;
push: reg2;
int : 0x20;
#lab
add : him, her;
jump: loop;
#mos
dec: him, *reg2;
#inst
add: onu, buna;
jump: lab;
save;
end;
}
{
inc: moses, to;
#io
push: him;
#kim
jump: frame;
}
okbro () {
dec: him, beat;
#his
push: him;
jump: main;
ret; }';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php