> Hey is there a way to spin off a thread in PHP to do some large amount of
> work that can communicate with the program via Session Variables??
No, the closest you have is a feature called ticks. Here is an example:
function foo($str) {
static $i = 0;
print "$str: $i<br>\n";
$i++;
}
register_tick_function("foo", "count");
declare (ticks = 6) {
for($i=0; $i<20; $i++) {
echo "$i<br>\n";
}
}
The magic is in the declare { ... } block of code. You stick whatever you
want to periodically interrupt inside the declare block. In this example
every 6 ticks the for loop inside the declare block will be interrupted
and the registered tick function (foo) will be called. A tick can loosely
thought of as a simple PHP expression. So, this for loop goes through 2
ticks for every iteration. 1 tick is the for() expression and 1 tick is
the echo expression.
The resulting output from the above program (try it) is then:
0
1
2
count: 0
3
4
5
count: 1
6
7
8
count: 2
9
10
11
count: 3
12
13
14
count: 4
15
16
17
count: 5
18
19
count: 6
It's not multithreading, but it is a way to go and check on some
long-running non-blocking process every now and then.
-Rasmus
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