3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items = [ (object)['title' => 'a test title'], (object)['title' => 'second title'], (object)['title' => 'Привет!'], (object)['title' => 'çà'], (object)['title' => '!Not a letter'] ]; // Instantiating the single-byte alphabetical groups... $groups = array_fill_keys(array_merge(range('a','z'), ['other']), []); //var_export($groups); //echo "\n---\n"; // Grouping by first (potentially multi-byte) letter... $translate = [ 'à' => 'a', 'á' => 'a', 'ả' => 'a', 'ạ' => 'a', 'ã' => 'a', 'â' => 'a', 'ầ' => 'a', 'ấ' => 'a', 'ẩ' => 'a', 'ậ' => 'a', 'ẫ' => 'a', 'ă' => 'a', 'ằ' => 'a', 'ắ' => 'a', 'ẳ' => 'a', 'ặ' => 'a', 'ẵ' => 'a', 'ä' => 'a', 'å' => 'a', 'æ' => 'a', 'đ' => 'd', 'è' => 'e', 'é' => 'e', 'ẻ' => 'e', 'ẹ' => 'e', 'ẽ' => 'e', 'ê' => 'e', 'ề' => 'e', 'ế' => 'e', 'ể' => 'e', 'ệ' => 'e', 'ễ' => 'e', 'ë' => 'e', 'ì' => 'i', 'í' => 'i', 'ỉ' => 'i', 'ị' => 'i', 'ĩ' => 'i', 'î' => 'i', 'ï' => 'i', 'ò' => 'o', 'ó' => 'o', 'ỏ' => 'o', 'ọ' => 'o', 'õ' => 'o', 'ô' => 'o', 'ồ' => 'o', 'ố' => 'o', 'ổ' => 'o', 'ộ' => 'o', 'ỗ' => 'o', 'ö' => 'o', 'ø' => 'o', 'ù' => 'u', 'ú' => 'u', 'û' => 'u', 'ũ' => 'u', 'ü' => 'u', 'ů' => 'u', 'ủ' => 'u', 'ụ' => 'u', 'ư' => 'u', 'ứ' => 'u', 'ừ' => 'u', 'ữ' => 'u', 'ử' => 'u', 'ự' => 'u', 'ć' => 'c', 'ĉ' => 'c', 'ç' => 'c', 'ç' => 'c', 'ñ' => 'n', 'ý' => 'y', 'ỳ' => 'y', 'ỷ' => 'y', 'ỵ' => 'y', 'ỹ' => 'y', 'ŷ' => 'y', 'ÿ' => 'y' ]; foreach ($items as $item) { $first = strtr(mb_strtolower(mb_substr($item->title, 0, 1, "UTF-8"), "UTF-8"), $translate); if (isset($groups[$first])) { $groups[$first] = $item; } else { $groups['other'] = $item; } } var_export($groups);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0040.01118.43
8.3.50.0110.01022.15
8.3.40.0180.00318.97
8.3.30.0070.00718.70
8.3.20.0070.00021.73
8.3.10.0040.00420.12
8.3.00.0040.00423.65
8.2.180.0210.00016.63
8.2.170.0120.00622.96
8.2.160.0140.00020.94
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00426.16
8.2.110.0090.00022.25
8.2.100.0060.00617.97
8.2.90.0040.00419.17
8.2.80.0040.00417.97
8.2.70.0040.00417.75
8.2.60.0000.00818.03
8.2.50.0040.00418.07
8.2.40.0080.00018.10
8.2.30.0030.00618.19
8.2.20.0000.00818.13
8.2.10.0040.00419.22
8.2.00.0040.00419.18
8.1.280.0070.00725.92
8.1.270.0040.00423.96
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0030.00620.69
8.1.230.0070.00717.70
8.1.220.0050.00317.78
8.1.210.0080.00018.77
8.1.200.0000.01017.38
8.1.190.0040.00417.48
8.1.180.0080.00018.10
8.1.170.0000.00818.61
8.1.160.0050.00319.02
8.1.150.0040.00418.93
8.1.140.0000.00819.06
8.1.130.0000.00720.27
8.1.120.0050.00217.51
8.1.110.0030.00317.53
8.1.100.0040.00417.49
8.1.90.0000.00717.54
8.1.80.0040.00417.41
8.1.70.0000.00717.53
8.1.60.0000.00817.63
8.1.50.0000.00817.59
8.1.40.0000.00917.59
8.1.30.0030.00617.69
8.1.20.0040.00417.72
8.1.10.0000.00817.62
8.1.00.0000.00817.60
8.0.300.0000.00820.01
8.0.290.0000.00716.88
8.0.280.0080.00018.59
8.0.270.0040.00416.96
8.0.260.0000.00618.47
8.0.250.0050.00317.00
8.0.240.0000.00817.11
8.0.230.0050.00317.05
8.0.220.0000.00717.03
8.0.210.0000.01017.10
8.0.200.0030.00317.04
8.0.190.0080.00017.09
8.0.180.0000.00817.00
8.0.170.0030.00617.06
8.0.160.0000.00916.90
8.0.150.0040.00417.00
8.0.140.0040.00416.93
8.0.130.0050.00313.50
8.0.120.0000.00717.01
8.0.110.0040.00417.11
8.0.100.0050.00316.93
8.0.90.0030.00616.89
8.0.80.0030.01216.90
8.0.70.0000.00716.95
8.0.60.0040.00416.88
8.0.50.0070.00016.87
8.0.30.0130.00316.89
8.0.20.0060.01217.18
8.0.10.0070.00016.95
8.0.00.0120.00816.81
7.4.330.0050.00015.55
7.4.320.0030.00316.59
7.4.300.0030.00316.72
7.4.290.0040.00416.65
7.4.280.0040.00416.57
7.4.270.0040.00416.63
7.4.260.0000.00716.66
7.4.250.0030.00316.62
7.4.240.0060.00216.50
7.4.230.0040.00416.69
7.4.220.0000.00716.41
7.4.210.0060.01216.70
7.4.200.0000.00716.56
7.4.130.0130.00716.50
7.4.120.0070.01116.59
7.4.110.0030.01516.50
7.4.100.0030.01416.70
7.4.90.0060.01216.48
7.4.80.0130.00319.39
7.4.70.0090.00916.71
7.4.60.0120.00316.54
7.4.50.0100.00316.51
7.4.40.0140.00616.60
7.4.00.0030.01414.97
7.3.330.0000.00613.43
7.3.320.0030.00313.38
7.3.310.0000.00816.39
7.3.300.0030.00316.56
7.3.290.0030.00316.47
7.3.280.0000.01616.47
7.3.260.0130.00816.56
7.3.240.0100.00916.57
7.3.230.0120.00616.57
7.3.210.0130.00316.62
7.3.200.0170.00316.30
7.3.190.0040.01316.35
7.3.180.0130.00316.19
7.3.170.0100.01316.58
7.3.160.0100.01016.48
7.3.120.0040.01514.86
7.3.110.0040.01114.91
7.3.100.0000.01214.86
7.3.90.0070.01114.92
7.3.80.0100.00314.95
7.3.70.0070.00814.61
7.3.60.0020.01014.86
7.3.50.0050.00714.85
7.3.40.0070.00714.70
7.3.30.0060.01114.80
7.3.20.0120.00515.78
7.3.10.0120.00515.81
7.3.00.0090.00615.80
7.2.330.0170.00916.76
7.2.320.0120.01016.68
7.2.310.0100.00716.90
7.2.300.0030.01516.83
7.2.290.0090.00916.85
7.2.250.0070.01415.15
7.2.240.0040.01415.04
7.2.230.0130.00315.16
7.2.220.0030.01315.21
7.2.210.0060.00315.05
7.2.200.0110.00114.98
7.2.190.0030.01214.94
7.2.180.0030.01115.04
7.2.170.0080.00814.97
7.2.160.0160.00315.04
7.2.150.0180.00415.25
7.2.140.0120.00915.29
7.2.130.0160.01315.21
7.2.120.0430.00315.09
7.2.110.0130.00315.26
7.2.100.0160.00615.27
7.2.90.0120.00615.05
7.2.80.0160.00015.07
7.2.70.0190.00315.18
7.2.60.0130.00615.00
7.2.50.0250.00615.16
7.2.40.0260.00315.14
7.2.30.0090.00615.02
7.2.20.0090.00614.90
7.2.10.0080.00815.00
7.2.00.0060.00914.98
7.1.330.0100.00715.81
7.1.320.0060.00615.95
7.1.310.0070.00715.81
7.1.300.0100.00814.81
7.1.290.0130.00514.82
7.1.280.0120.00914.80
7.1.270.0190.00514.94
7.1.260.0130.00714.99
7.1.250.0180.00814.12

preferences:
54.93 ms | 401 KiB | 5 Q