Online PHP editor | perf for 6pCE5

<?php $json='{ "rec_items": [ { "classes": "玄幻", "gid": 6326585, "author": "我吃西红柿", "nid": 10079306, "last_sort": 841, "last_chapter_name": "第二十五卷第六章一扫而空", "sub_count": 5364424, "novel_name": "莽荒纪", "last_update_time": 1393679718826 }, { "classes": "玄幻", "gid": 6109786, "author": "唐家三少", "nid": 10079046, "last_sort": 1153, "last_chapter_name": "第三百八十一章开始行动（中）", "sub_count": 3933876, "novel_name": "绝世唐门", "last_update_time": 1393681654511 }, { "classes": "玄幻", "gid": 10645516, "author": "辰东", "nid": 12649548, "last_sort": 478, "last_chapter_name": "第四百三十二章扛媳妇回村", "sub_count": 1422482, "novel_name": "完美世界", "last_update_time": 1393681655610 }, { "classes": "玄幻", "gid": 4711723, "author": "只是小虾米", "nid": 12629406, "last_sort": 2603, "last_chapter_name": "第2588章苏醒！", "sub_count": 2841630, "novel_name": "武逆", "last_update_time": 1393605899300 }, { "classes": "玄幻", "gid": 3701669, "author": "苍笑天", "nid": 8583556, "last_sort": 3427, "last_chapter_name": "第两千两百二十五章孔雀王！", "sub_count": 606473, "novel_name": "武破九霄", "last_update_time": 1391279170831 }, { "classes": "玄幻", "gid": 8141499, "author": "风凌天下", "nid": 9212380, "last_sort": 2579, "last_chapter_name": "第五百二十六章九劫、天帝之战【七】", "sub_count": 3082857, "novel_name": "傲世九重天", "last_update_time": 1393677692614 } ], "cate_book_items": [ { "classes": "玄幻", "gid": 4711723, "author": "只是小虾米", "nid": 12629406, "last_sort": 2603, "last_chapter_name": "第2588章苏醒！", "sub_count": 2841630, "novel_name": "武逆", "last_update_time": 1393605899300 }, { "classes": "玄幻", "gid": 3701669, "author": "苍笑天", "nid": 8583556, "last_sort": 3427, "last_chapter_name": "第两千两百二十五章孔雀王！", "sub_count": 606473, "novel_name": "武破九霄", "last_update_time": 1391279170831 }, { "classes": "玄幻", "gid": 10645516, "author": "辰东", "nid": 12649548, "last_sort": 478, "last_chapter_name": "第四百三十二章扛媳妇回村", "sub_count": 1422482, "novel_name": "完美世界", "last_update_time": 1393681655610 } ] }'; function mult_unique($array) { $return = array(); foreach($array as $key=>$v) { if(!in_array($v, $return)) { $return[$key]=$v; } } return $return; } $json = get_object_vars(json_decode($json)); $data = $json['rec_items']; $data = array_merge_recursive($data, $json['cate_book_items']); echo '<pre>'; print_r($data); echo '<br>'; print_r(mult_unique($data)); echo '</pre>'; echo json_encode('I'=>'test');

Version	System time (s)	User time (s)	Memory (MiB)
5.4.25	0.013	0.060	18.93
5.4.24	0.013	0.063	18.90
5.4.23	0.003	0.080	18.65
5.4.22	0.010	0.070	18.82
5.4.21	0.010	0.047	19.04
5.4.20	0.007	0.067	18.93
5.4.19	0.010	0.073	18.95
5.4.18	0.020	0.043	18.94
5.4.17	0.017	0.050	18.95
5.4.16	0.007	0.050	18.93
5.4.15	0.003	0.060	18.98
5.4.14	0.007	0.050	16.42
5.4.13	0.010	0.043	16.41
5.4.12	0.020	0.053	16.30
5.4.11	0.020	0.057	16.53
5.4.10	0.013	0.043	16.47
5.4.9	0.010	0.047	16.50
5.4.8	0.010	0.043	16.55
5.4.7	0.000	0.053	16.45
5.4.6	0.007	0.050	16.54
5.4.5	0.013	0.070	16.46
5.4.4	0.017	0.040	16.61
5.4.3	0.010	0.060	16.45
5.4.2	0.017	0.047	16.48
5.4.1	0.010	0.047	16.30
5.4.0	0.007	0.057	15.75
5.3.28	0.013	0.043	14.64
5.3.27	0.020	0.060	14.70
5.3.26	0.013	0.050	14.68
5.3.25	0.007	0.050	14.68
5.3.24	0.003	0.057	14.76
5.3.23	0.010	0.070	14.70
5.3.22	0.013	0.047	14.73
5.3.21	0.007	0.050	14.66
5.3.20	0.007	0.050	14.66
5.3.19	0.003	0.057	14.64
5.3.18	0.003	0.053	14.47
5.3.17	0.007	0.050	14.79
5.3.16	0.007	0.050	14.54
5.3.15	0.013	0.047	14.57
5.3.14	0.010	0.050	14.46
5.3.13	0.013	0.047	14.73
5.3.12	0.003	0.060	14.78
5.3.11	0.010	0.053	14.57
5.3.10	0.007	0.053	14.13
5.3.9	0.013	0.060	14.11
5.3.8	0.003	0.060	14.04
5.3.7	0.010	0.053	14.25
5.3.6	0.023	0.033	14.16
5.3.5	0.007	0.047	13.94
5.3.4	0.000	0.070	14.02
5.3.3	0.007	0.050	13.83
5.3.2	0.007	0.057	13.71
5.3.1	0.007	0.053	13.74
5.3.0	0.013	0.050	13.63