note 34326 deleted from function.pcntl-fork by nlopess
| From: | nlopess@php.net | Date: | Sat, 22 Jul 2006 11:38:31 +0000 |
| Subject: | note 34326 deleted from function.pcntl-fork by nlopess | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-115041@lists.php.net to get a copy of this message | ||
Note Submitter: porkchop at porkchop dot net
----
On a fork, vars themselves are copied into the new child's space, not just a refrence to that
var.
Consider:
<?
$foo="foo";
$pid=pcntl_fork();
if($pid != 0) { /* we're here if this is the parent */
$foo="bar";
echo $foo; // returns "bar".
die("Child complete");
} else { /* we're the child */
sleep 5
echo $foo; // returns "foo" even though the parent set $foo to "bar" about 5
seconds earlier.
};
?>