3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ ["year" => 1921, "name" => "bob"], ["year" => 1944, "name" => "steve"], ["year" => 1944, "name" => "doug"], ["year" => 1921, "name" => "jim"], ]; foreach ($arr as $item) { $result[$item['year']]['year'] = $item['year']; $result[$item['year']]['names'][] = ['name' => $item['name']]; } echo json_encode(['data' => array_values($result)], JSON_PRETTY_PRINT);

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)
8.3.70.0150.00018.31
8.3.60.0040.01116.63
8.3.50.0150.00416.55
8.3.40.0070.00721.63
8.3.30.0150.00618.93
8.3.20.0030.00524.18
8.3.10.0000.00824.66
8.3.00.0040.00426.16
8.2.190.0180.00416.58
8.2.180.0130.00325.92
8.2.170.0100.01019.14
8.2.160.0100.00322.96
8.2.150.0000.00725.66
8.2.140.0030.00624.66
8.2.130.0070.00026.16
8.2.120.0040.00426.35
8.2.110.0030.00721.03
8.2.100.0080.00417.84
8.2.90.0030.00618.03
8.2.80.0060.00320.06
8.2.70.0040.00417.63
8.2.60.0040.00418.22
8.2.50.0060.00318.10
8.2.40.0040.00419.27
8.2.30.0040.00419.35
8.2.20.0040.00418.11
8.2.10.0070.00019.31
8.2.00.0000.00719.21
8.1.280.0070.01425.92
8.1.270.0080.00018.69
8.1.260.0040.00428.09
8.1.250.0090.00028.09
8.1.240.0030.00622.45
8.1.230.0070.00320.91
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0050.00317.48
8.1.190.0030.00617.22
8.1.180.0060.00318.10
8.1.170.0040.00418.59
8.1.160.0000.00718.97
8.1.150.0040.00418.89
8.1.140.0000.00818.95
8.1.130.0060.00020.20
8.1.120.0040.00417.45
8.1.110.0000.00817.42
8.1.100.0040.00417.45
8.1.90.0040.00417.46
8.1.80.0080.00017.46
8.1.70.0030.00317.46
8.1.60.0000.01017.55
8.1.50.0000.00717.50
8.1.40.0060.00317.54
8.1.30.0080.00017.67
8.1.20.0040.00417.57
8.1.10.0000.00817.56
8.1.00.0040.00417.52
8.0.300.0060.00319.98
8.0.290.0030.00516.63
8.0.280.0040.00418.34
8.0.270.0070.00016.86
8.0.260.0060.00020.19
8.0.250.0060.00316.94
8.0.240.0070.00016.95
8.0.230.0000.00716.97
8.0.220.0000.00916.90
8.0.210.0000.00916.82
8.0.200.0030.00316.86
8.0.190.0030.00416.90
8.0.180.0050.00316.85
8.0.170.0060.00316.90
8.0.160.0000.00716.85
8.0.150.0030.00516.78
8.0.140.0040.00416.71
8.0.130.0030.00313.25
8.0.120.0040.00416.72
8.0.110.0040.00416.95
8.0.100.0040.00416.91
8.0.90.0050.00316.74
8.0.80.0070.01016.86
8.0.70.0030.00516.84
8.0.60.0040.00416.77
8.0.50.0000.00716.87
8.0.30.0150.00417.18
8.0.20.0140.00717.14
8.0.10.0000.00716.99
8.0.00.0100.00916.94
7.4.330.0020.00216.84
7.4.320.0060.00016.41
7.4.300.0030.00316.58
7.4.290.0030.00516.59
7.4.280.0000.00816.60
7.4.270.0070.00016.50
7.4.260.0060.00013.29
7.4.250.0070.00016.48
7.4.240.0070.00016.61
7.4.230.0000.00716.59
7.4.220.0020.00516.52
7.4.210.0080.01016.53
7.4.200.0030.00316.70
7.4.130.0090.01416.47
7.4.120.0090.01216.47
7.4.110.0060.01116.43
7.4.100.0070.01116.50
7.4.90.0050.01816.41
7.4.80.0110.00716.36
7.4.70.0060.01116.36
7.4.60.0150.00616.41
7.4.50.0060.01016.35
7.4.40.0140.00416.46
7.4.30.0090.00916.57
7.4.20.0060.01316.35
7.4.10.0040.01616.64
7.4.00.0100.00716.51
7.3.330.0000.00716.24
7.3.320.0030.00313.26
7.3.310.0030.00316.41
7.3.300.0000.00716.43
7.3.290.0050.00916.34
7.3.260.0090.00916.50
7.3.240.0080.00916.44
7.3.230.0160.00016.49
7.3.220.0100.00616.24
7.3.210.0050.01516.43
7.3.200.0040.01616.27
7.3.190.0100.01016.35
7.3.180.0110.00716.25
7.3.170.0060.01516.66
7.3.160.0080.01116.37
7.3.150.0050.01316.49
7.3.140.0080.00816.26
7.3.130.0030.01416.42
7.3.120.0120.00616.28
7.3.110.0110.00616.26
7.3.100.0050.01316.18
7.3.90.0070.01316.29
7.3.80.0110.00816.50
7.3.70.0080.01216.30
7.3.60.0100.00816.27
7.3.50.0120.00616.32
7.3.40.0090.00616.36
7.3.30.0090.00616.25
7.3.20.0110.00516.50
7.3.10.0070.01016.38
7.3.00.0110.00716.28
7.2.340.0070.01016.46
7.2.330.0110.00816.39
7.2.320.0060.01216.68
7.2.310.0150.00316.57
7.2.300.0120.00316.55
7.2.290.0060.01216.46
7.2.280.0030.01416.77
7.2.270.0090.00916.50
7.2.260.0100.00716.44
7.2.250.0040.01416.51
7.2.240.0130.00616.71
7.2.230.0070.01016.69
7.2.220.0160.00616.55
7.2.210.0070.01016.63
7.2.200.0140.00616.46
7.2.190.0120.01216.56
7.2.180.0000.01716.63
7.2.170.0130.00416.66
7.2.160.0090.00916.63
7.2.150.0070.01016.62
7.2.140.0100.00716.58
7.2.130.0130.00716.68
7.2.120.0140.00516.56
7.2.110.0120.01716.57
7.2.100.0070.01016.55
7.2.90.0090.00916.66
7.2.80.0040.01416.62
7.2.70.0090.00916.66
7.2.60.0060.01216.75
7.2.50.0070.01116.71
7.2.40.0100.00916.68
7.2.30.0030.01516.69
7.2.20.0070.01116.59
7.2.10.0090.00916.41
7.2.00.0110.00716.55

preferences:
19.54 ms | 401 KiB | 5 Q