EvStat::__construct
(PECL ev >= 0.2.0)
EvStat::__construct — Constructs EvStat watcher object
Description
public EvStat::__construct ( string $path , float $interval , callable $callback [, mixed $data = null [, int $priority = 0 ]] )
Constructs EvStat watcher object and starts the watcher automatically.
Parameters
-
path -
The path to wait for status changes on.
-
interval -
Hint on how quickly a change is expected to be detected and should normally be specified as
0.0to let libev choose a suitable value. -
callback -
See Watcher callbacks .
-
data -
Custom data associated with the watcher.
-
priority
Return Values
Returns EvStat watcher object on succes.
Examples
Example #1 Monitor changes of /var/log/messages
<?php
// Use 10 second update interval.
$w = new EvStat("/var/log/messages", 8, function ($w) {
echo "/var/log/messages changed\n";
$attr = $w->attr();
if ($attr['nlink']) {
printf("Current size: %ld\n", $attr['size']);
printf("Current atime: %ld\n", $attr['atime']);
printf("Current mtime: %ld\n", $attr['mtime']);
} else {
fprintf(STDERR, "`messages` file is not there!");
$w->stop();
}
});
Ev::run();
?>
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https://www.php.net/manual/en/evstat.construct.php