Globally record the running time of program fragments and correctly find breakpoints that take a long time in program logic_PHP Tutorial

Copy code The code is as follows:

// Define global variables to record time
$_timer_id = 0;
// Function Set global variables to record the running time of each breakpoint
function makeTimer( $notes, $onOff=FALSE )
{
if( $onOff )
{
global $_timer_id;
$GLOBALS['timer'][$_timer_id][0] = microtime(TRUE);
$GLOBALS['timer'][$_timer_id][1] = $notes;
$_timer_id++;
}
}
// Output the global running time status
function traceTimer()
{
$timer_str = '';
$G_timer = count($GLOBALS[' timer'])-1;
if( $G_timer>0 )
{
for( $i=0;$i<$G_timer;$i++ )
{
$dif_time = number_format( ($GLOBALS['timer'][$i+1][0] - $GLOBALS['timer'][$i][0]), 3 );
$timer_str .= 'dif: ' .$dif_time.' '.$GLOBALS['timer'][$i][1]."n";
}
$dif_time = number_format( (microtime(TRUE) - $GLOBALS['timer' ][$G_timer][0]), 3 );
$timer_str .= 'dif: '.$dif_time.' '.$GLOBALS['timer'][$G_timer][1]."n";
}
return $timer_str;
}
Usage:
// Start time
makeTimer( ' LINE:'.__LINE__ );
$imgstrpos = strpos($ str, 'makeTimer( ' LINE:'.__LINE__ );
$str_p = substr($str_noimg, 0, $imgstrpos);
makeTimer( ' LINE: '.__LINE__ );
$str_n = substr($str_noimg, $imgstrpos, strlen($str_noimg));
makeTimer( ' LINE:'.__LINE__ );
$pst_exc_imgs = $str_p.'< ;img '.$imgstr.'>'.$str_n." ";
makeTimer( ' LINE:'.__LINE__ );
// Record to log
error_log( traceTimer(), 3 , '/tmp/'.basename(__FILE__).'.log' );
// Or directly output
echo traceTimer();

at 2010-05-14 09 :20

http://www.bkjia.com/PHPjc/322677.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/322677.htmlTechArticleCopy code The code is as follows: // Define global variable recording time $_timer_id = 0; // Function sets global variable recording The time required to run each breakpoint function makeTimer( $notes, $onOff...