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<?php
class SpotTiming {
static private $_disabled = true;
static private $_timings = array();
static private $_inflight = array();
static private $_curlevel = 0;
static function enable() {
self::$_disabled = false;
} # enable
static function disable() {
self::$_disabled = true;
} #disable
static function start($name) {
if (self::$_disabled) return;
self::$_curlevel++;
self::$_inflight[$name] = array('start' => microtime(true));
} # start
static function stop($name, $extra = '') {
if (self::$_disabled) return;
self::$_inflight[$name]['stop'] = microtime(true);
self::$_inflight[$name]['extra'] = $extra;
self::$_inflight[$name]['level'] = self::$_curlevel;
self::$_curlevel--;
self::$_timings[] = array_merge(self::$_inflight[$name], array('name' => $name));
unset(self::$_inflight[$name]);
} # stop
static function display() {
if (self::$_disabled) return;
echo '<table style="border: 1px solid black; border-collapse: collapse;" border=1><tr><th>Name</th><th>Time</th><th>Extra</th></tr>';
foreach(array_reverse(self::$_timings) as $values) {
try {
echo '<tr><td>' . str_pad('', $values['level'], '.') . $values['name'] . '</td><td>' . ($values['stop'] - $values['start']) . '</td><td>' . serialize($values['extra']) . '</td></tr>' . PHP_EOL;
} catch(Exception $x) {
echo '<tr><td>' . str_pad('', $values['level'], '.') . $values['name'] . '</td><td>' . ($values['stop'] - $values['start']) . '</td><td> [Unserializable data]</td></tr>' . PHP_EOL;
} # catch
} # foreach
echo '</table><br><br><br><br>';
} # display()
} # class SpotTiming
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