[PHP] Create associative array from comments by preg

[Alawi albaity]

I have comments like that : 
<!-- comname1 --!>
value1 
<!-- end comname1 --!>

<!-- comname2 --!>
value2 
<!-- end comname2 --!>
Now : 
How can me get associative array like this
$var["comname1"] = "value1";
$var["comname2"] = "value2";

can any body help me to do that ?