3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ["foo" => [1,2,3], "bar" => [5,2,3,4,3], "baz" => [5,2,1,6]]; echo json_encode(array_map(function ($k, $v) { array_splice($v, 0, 0, $k); return $v; }, array_keys($a), $a));

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)
8.3.70.0140.00716.58
8.3.60.0190.00316.75
8.3.50.0130.00517.13
8.3.40.0060.00918.70
8.3.30.0030.01218.60
8.3.20.0000.00721.73
8.3.10.0080.00023.66
8.3.00.0040.00419.68
8.2.190.0090.00616.58
8.2.180.0100.01016.50
8.2.170.0140.00722.96
8.2.160.0100.00320.11
8.2.150.0080.00324.18
8.2.140.0070.00024.66
8.2.130.0040.00420.52
8.2.120.0000.00726.35
8.2.110.0030.00621.02
8.2.100.0040.00817.91
8.2.90.0000.00919.22
8.2.80.0040.00417.97
8.2.70.0050.00317.50
8.2.60.0040.00417.80
8.2.50.0000.00818.10
8.2.40.0040.00420.55
8.2.30.0040.00419.28
8.2.20.0020.00518.05
8.2.10.0050.00217.99
8.2.00.0000.00817.99
8.1.280.0140.00725.92
8.1.270.0080.00020.71
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0040.00719.13
8.1.230.0040.00722.07
8.1.220.0060.00317.74
8.1.210.0060.00318.77
8.1.200.0060.00617.35
8.1.190.0040.00417.35
8.1.180.0050.00318.10
8.1.170.0000.00818.59
8.1.160.0000.00818.97
8.1.150.0000.00820.68
8.1.140.0000.00719.45
8.1.130.0030.00718.96
8.1.120.0000.00717.54
8.1.110.0000.00917.49
8.1.100.0040.00417.36
8.1.90.0040.00417.44
8.1.80.0040.00417.45
8.1.70.0030.00317.36
8.1.60.0000.00817.59
8.1.50.0040.00417.51
8.1.40.0080.00017.52
8.1.30.0000.00717.57
8.1.20.0000.00817.70
8.1.10.0040.00417.55
8.1.00.0000.00717.48
8.0.300.0080.00018.77
8.0.290.0000.00816.75
8.0.280.0070.00018.50
8.0.270.0030.00317.30
8.0.260.0060.00019.00
8.0.250.0040.00416.92
8.0.240.0000.00816.85
8.0.230.0000.00716.93
8.0.220.0000.00716.82
8.0.210.0030.00316.86
8.0.200.0000.00616.84
8.0.190.0030.00516.86
8.0.180.0040.00416.89
8.0.170.0040.00816.89
8.0.160.0000.01016.88
8.0.150.0050.00216.79
8.0.140.0000.00916.73
8.0.130.0000.00713.28
8.0.120.0080.00016.76
8.0.110.0070.00016.83
8.0.100.0070.00016.95
8.0.90.0000.00717.00
8.0.80.0150.00616.93
8.0.70.0000.00816.77
8.0.60.0040.00416.93
8.0.50.0040.00416.67
8.0.30.0080.01017.17
8.0.20.0070.01117.40
8.0.10.0000.00717.05
8.0.00.0140.00316.70
7.4.330.0050.00015.55
7.4.320.0070.00016.52
7.4.300.0030.00316.53
7.4.290.0030.00316.64
7.4.280.0040.00416.57
7.4.270.0000.00816.59
7.4.260.0000.00716.38
7.4.250.0000.00716.46
7.4.240.0000.00716.53
7.4.230.0000.00816.51
7.4.220.0140.00316.54
7.4.210.0140.00716.37
7.4.200.0000.00716.31
7.4.160.0100.00716.45
7.4.150.0080.00817.40
7.4.140.0120.00817.86
7.4.130.0110.01116.50
7.4.120.0130.00716.58
7.4.110.0100.00716.48
7.4.100.0120.00916.51
7.4.90.0030.01316.66
7.4.80.0120.00619.39
7.4.70.0110.01116.52
7.4.60.0000.01616.43
7.4.50.0070.00716.44
7.4.40.0150.02016.50
7.4.30.0100.00616.54
7.4.00.0070.00714.84
7.3.330.0030.00313.23
7.3.320.0030.00313.35
7.3.310.0030.00316.34
7.3.300.0040.00416.34
7.3.290.0110.00616.23
7.3.280.0090.00716.23
7.3.270.0140.00317.40
7.3.260.0130.00916.40
7.3.250.0090.00816.20
7.3.240.0150.00616.41
7.3.230.0030.01316.42
7.3.210.0130.00316.16
7.3.200.0130.00616.33
7.3.190.0100.01316.25
7.3.180.0000.01516.32
7.3.170.0060.00916.15
7.3.160.0070.01016.18
7.3.120.0070.00714.68
7.3.110.0060.01014.39
7.3.100.0110.00414.68
7.3.90.0030.00614.85
7.3.80.0080.00414.83
7.3.70.0060.01214.42
7.3.60.0070.01114.78
7.3.50.0070.01014.50
7.3.40.0030.01114.71
7.3.30.0070.01114.79
7.3.20.0030.01316.48
7.3.10.0030.01316.66
7.3.00.0090.00316.41
7.2.330.0110.00616.47
7.2.320.0030.01316.37
7.2.310.0000.01616.42
7.2.300.0130.00716.39
7.2.290.0100.00616.65
7.2.250.0120.00614.66
7.2.240.0000.01515.11
7.2.230.0130.00014.73
7.2.220.0110.00014.72
7.2.210.0040.01115.11
7.2.200.0030.01014.85
7.2.190.0040.01514.93
7.2.180.0070.00714.98
7.2.170.0040.01414.71
7.2.60.0050.00517.00
7.1.330.0140.00415.54
7.1.320.0070.00715.66
7.1.310.0030.00915.55
7.1.300.0090.00915.46
7.1.290.0060.00315.64
7.1.280.0120.00315.33
7.1.270.0040.00815.51
7.1.260.0000.00915.60
7.1.200.0130.00015.74
7.1.70.0040.01116.81
7.1.60.0270.00734.73
7.1.50.0230.02034.44
7.1.40.0270.01034.29
7.1.30.0200.01334.54
7.1.20.0130.02034.70
7.1.10.0030.01016.57
7.1.00.0070.00716.57
7.0.200.0030.01016.63
7.0.190.0030.01016.74
7.0.180.0030.01016.22
7.0.170.0000.01716.30
7.0.160.0100.00716.21
7.0.150.0000.01316.07
7.0.140.0100.00715.98
7.0.130.0000.01016.33
7.0.120.0000.01316.31
7.0.110.0000.01316.19
7.0.100.0030.01316.24
7.0.90.0000.01316.09
7.0.80.0030.01016.18
7.0.70.0030.01016.15
7.0.60.0100.01015.91
7.0.50.0000.02016.23
7.0.40.0070.01016.38
7.0.30.0070.01016.32
7.0.20.0130.00716.43
7.0.10.0070.00716.36
7.0.00.0000.01316.43

preferences:
18.96 ms | 401 KiB | 5 Q