Online PHP editor | perf for cfG5u

<?php function get_tumbail($imgSrc,$placeholder_image){ $imgPattern = "/(http\:\/\/ww\d+\.sinaimg\.cn\/)(\w+)(\/\S+\.(jpg|gif))/i"; $matches = null; $result = preg_match($imgPattern, $imgSrc, $matches); if (!$result) { return $placeholder_image; } return $matches[1] . 'thumbnail' . $matches[3]; } $placeholder_image = 'images/transparent.gif'; $imgStr = '<img src="http://ww2.sinaimg.cn/bmiddle/a3d444e3jw1ez79amvdi1j20l50s8gpl.jpg"/>'; $imgStr = preg_replace_callback('#<img([^>]+?)src=[\'"]?([^\'"\s>]+)[\'"]?([^>]*)>#',function($match) { var_dump($match); global $placeholder_image; return sprintf('<img'.$match[1].'src="%s" data-original="'.$match[2].'" class="lazy"'.$match[3].'><noscript><img'.$match[1].'src="'.$match[2].'"'.$match[3].'></noscript>', get_tumbail($match[2],$placeholder_image)); },$imgStr); var_dump($imgStr); $imgStr = preg_replace('#<img([^>]+?)src=[\'"]?([^\'"\s>]+)[\'"]?([^>]*)>#', sprintf('<img${1}src="%s" data-original="${2}" class="lazy"${3}><noscript><img${1}src="${2}"${3}></noscript>', get_tumbail($2,$placeholder_image)), $imgStr); var_dump($imgStr);

Version	System time (s)	User time (s)	Memory (MiB)
7.0.1	0.007	0.040	20.26
7.0.0	0.007	0.040	20.12
5.6.16	0.003	0.053	20.54
5.6.15	0.017	0.060	18.15
5.6.14	0.007	0.080	18.18
5.6.13	0.010	0.060	18.14
5.6.12	0.013	0.080	21.02
5.6.11	0.010	0.083	21.02
5.6.10	0.003	0.047	21.04
5.6.9	0.003	0.087	21.01
5.6.8	0.010	0.073	20.38
5.5.30	0.007	0.037	18.07
5.5.29	0.013	0.077	18.08
5.5.28	0.003	0.080	20.75
5.5.27	0.010	0.073	20.89
5.5.26	0.013	0.050	20.79
5.5.25	0.020	0.070	20.67
5.5.24	0.013	0.077	20.08