Minify Javascript

1) Remove multi line comments /* .... */

	$patterns = '/\/\*((?!\*\/).)*\*\//s';

2) Replace strings ( '...' "..." ) with unique ID ("s7fgrdydgar46dfg3w4")

3) Index unique IDs like

s7fgrdydgar46dfg3w4-001
s7fgrdydgar46dfg3w4-002
s7fgrdydgar46dfg3w4-003
......................
......................
......................

Use substr_replace() 

4) Remove single line comments //
	$txt = preg_replace('/(\/\/\-\-(.*)\n)/',"",$txt);

5) Remove \t\r\n
	$txt = preg_replace('/([\r\n\t]+)/',"",$txt);

6) Remove space between charactere(abcdefg) with symbols(+-=/)

7) Put strings back