3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [0 => 'a', 1 => 'b', 2 => 'c']; unset($arr[2]); $arr[] = 'd'; print_r($arr);

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)
8.3.60.0070.00718.43
8.3.50.0060.00918.21
8.3.40.0000.01418.71
8.3.30.0120.00319.09
8.3.20.0080.00020.34
8.3.10.0050.00320.54
8.3.00.0040.00419.38
8.2.180.0100.00318.16
8.2.170.0100.00722.96
8.2.160.0040.01120.38
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0040.00422.23
8.2.110.0040.00721.06
8.2.100.0100.00019.32
8.2.90.0030.00517.75
8.2.80.0060.00320.34
8.2.70.0030.00517.89
8.2.60.0030.00618.09
8.2.50.0000.00818.10
8.2.40.0000.00718.22
8.2.30.0040.00418.16
8.2.20.0040.00417.57
8.2.10.0070.00018.01
8.2.00.0040.00417.61
8.1.270.0040.00424.66
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0000.00822.02
8.1.230.0070.00420.89
8.1.220.0040.00417.74
8.1.210.0060.00318.98
8.1.200.0080.00017.35
8.1.190.0000.00817.23
8.1.180.0040.00418.95
8.1.170.0050.00318.46
8.1.160.0050.00321.91
8.1.150.0080.00018.82
8.1.140.0000.00717.37
8.1.130.0000.00717.83
8.1.120.0040.00417.29
8.1.110.0000.00717.39
8.1.100.0000.00817.33
8.1.90.0070.00017.38
8.1.80.0040.00417.39
8.1.70.0000.00717.36
8.1.60.0030.00617.48
8.1.50.0000.00817.47
8.1.40.0000.00717.46
8.1.30.0000.00817.42
8.1.20.0080.00017.57
8.1.10.0000.00817.50
8.1.00.0040.00417.46
8.0.300.0000.00720.16
8.0.290.0030.00716.63
8.0.280.0030.00318.23
8.0.270.0000.00717.19
8.0.260.0000.00617.23
8.0.250.0030.00316.80
8.0.240.0030.00316.81
8.0.230.0000.00716.84
8.0.220.0030.00316.80
8.0.210.0040.00316.71
8.0.200.0000.00716.93
8.0.190.0000.00816.93
8.0.180.0000.00716.74
8.0.170.0040.00416.83
8.0.160.0080.00016.80
8.0.150.0000.00716.74
8.0.140.0070.00016.77
8.0.130.0000.00513.32
8.0.120.0030.00516.89
8.0.110.0040.00416.75
8.0.100.0040.00416.69
8.0.90.0040.00416.72
8.0.80.0030.01216.71
8.0.70.0000.00716.71
8.0.60.0040.00416.84
8.0.50.0060.00316.79
8.0.30.0120.00716.90
8.0.20.0110.00817.40
8.0.10.0040.00416.83
8.0.00.0150.00616.79
7.4.330.0050.00015.00
7.4.320.0000.00616.61
7.4.300.0030.00316.61
7.4.290.0000.00716.58
7.4.280.0000.00716.57
7.4.270.0030.00316.55
7.4.260.0000.00716.35
7.4.250.0080.00016.46
7.4.240.0030.00316.48
7.4.230.0000.00716.34
7.4.220.0040.01316.71
7.4.210.0080.00816.56
7.4.200.0030.00316.33
7.4.160.0090.01316.43
7.4.150.0160.00317.40
7.4.140.0130.00317.86
7.4.130.0130.00716.43
7.4.120.0070.01016.38
7.4.110.0040.01416.32
7.4.100.0100.00616.51
7.4.90.0100.00716.59
7.4.80.0060.01219.39
7.4.70.0030.01416.46
7.4.60.0110.00416.45
7.4.50.0060.00016.23
7.4.40.0090.00916.45
7.4.30.0070.01016.57
7.4.00.0070.01015.13
7.3.330.0050.00012.99
7.3.320.0020.00213.13
7.3.310.0030.00316.11
7.3.300.0000.00716.26
7.3.290.0000.00716.30
7.3.280.0070.01016.29
7.3.270.0120.00617.40
7.3.260.0150.00316.65
7.3.250.0130.00616.40
7.3.240.0140.00316.29
7.3.230.0130.00316.39
7.3.210.0070.01316.24
7.3.200.0100.01219.39
7.3.190.0120.00616.45
7.3.180.0030.01416.17
7.3.170.0080.01416.27
7.3.160.0120.00916.60
7.3.10.0070.00416.55
7.3.00.0060.00616.48
7.2.330.0090.00916.41
7.2.320.0130.00316.56
7.2.310.0090.01016.21
7.2.300.0170.00016.56
7.2.290.0110.00616.61
7.2.130.0070.00716.57
7.2.120.0030.01316.75
7.2.110.0030.00916.71
7.2.100.0060.00616.41
7.2.90.0090.00016.68
7.2.80.0060.01216.55
7.2.70.0070.00716.39
7.2.60.0040.01116.59
7.2.50.0100.00716.59
7.2.40.0040.00816.43
7.2.30.0110.00716.69
7.2.20.0120.00816.79
7.2.10.0030.00816.34
7.2.00.0110.00416.54
7.1.250.0070.00215.47
7.1.200.0060.00915.41
7.1.70.0000.00717.14
7.1.60.0170.00719.32
7.1.50.0130.00716.68
7.1.00.0000.08022.46
7.0.200.0000.00816.82
7.0.140.0070.07022.21
7.0.60.0030.06319.96
7.0.50.0030.06717.86
7.0.40.0130.04019.96
7.0.30.0300.05720.13
7.0.20.0170.04720.06
7.0.10.0100.04720.32
7.0.00.0130.07720.09
5.6.280.0030.07321.03
5.6.210.0070.07720.66
5.6.200.0170.07018.14
5.6.190.0070.09320.60
5.6.180.0230.05020.77
5.6.170.0230.04720.46
5.6.160.0000.09320.46
5.6.150.0030.05318.15
5.6.140.0130.03718.17
5.6.130.0030.06718.26
5.6.120.0070.07720.89
5.6.110.0070.08720.98
5.6.100.0070.06320.95
5.6.90.0130.06721.12
5.6.80.0100.06320.38
5.6.70.4500.03720.39
5.5.350.0170.07720.37
5.5.340.0000.05718.08
5.5.330.0030.04320.25
5.5.320.0200.04320.26
5.5.310.0270.05720.19
5.5.300.0130.05718.04
5.5.290.0070.07317.98
5.5.280.0100.05720.89
5.5.270.0070.04020.72
5.5.260.0030.08720.75
5.5.250.0130.06320.45
5.5.240.0270.08020.03
5.4.450.0200.05019.64
5.4.440.0230.05019.20
5.4.430.0230.06719.48
5.4.420.0270.08019.45
5.4.410.0330.06719.05
5.4.400.0130.05719.13
5.4.390.0230.04719.15
5.4.380.0270.03018.88
5.4.370.0200.03319.21
5.4.360.0200.07319.09
5.4.350.0270.04018.85
5.4.340.0170.04019.08
5.4.320.0300.05319.31
5.4.310.0230.07719.05
5.4.300.0270.06019.24
5.4.290.0270.04319.09
5.4.280.0300.04319.14
5.4.270.0300.06319.17
5.4.260.0170.06319.14
5.4.250.0170.07319.07
5.4.240.0270.06019.21
5.4.230.0200.07319.05
5.4.220.0270.05319.21
5.4.210.0230.06019.21
5.4.200.0230.05718.86
5.4.190.0200.06719.30
5.4.180.0270.07019.12
5.4.170.0300.06319.14
5.4.160.0270.04319.20
5.4.150.0130.04319.20
5.4.140.0230.03016.51
5.4.130.0170.04016.32
5.4.120.0230.06716.50
5.4.110.0170.04016.40
5.4.100.0300.05716.27
5.4.90.0170.04316.27
5.4.80.0270.05316.52
5.4.70.0170.07016.52
5.4.60.0100.05016.34
5.4.50.0230.06016.43
5.4.40.0230.06716.34
5.4.30.0200.06016.37
5.4.20.0300.04016.43
5.4.10.0200.07716.53
5.4.00.0130.06715.75
5.3.290.0300.02714.50
5.3.280.0230.03314.64
5.3.270.0300.04314.70
5.3.260.0200.07714.70
5.3.250.0270.02714.51
5.3.240.0170.03714.65
5.3.230.0200.03314.44
5.3.220.0270.05014.51
5.3.210.0170.05314.40
5.3.200.0230.06314.43
5.3.190.0300.06014.50
5.3.180.0200.04714.36
5.3.170.0270.04314.42
5.3.160.0230.03714.66
5.3.150.0230.04314.53
5.3.140.0130.05314.43
5.3.130.0230.05014.41
5.3.120.0270.06314.50
5.3.110.0330.03714.39
5.3.100.0230.05313.98
5.3.90.0200.03713.88
5.3.80.0270.04313.87
5.3.70.0200.04713.96
5.3.60.0330.05313.89
5.3.50.0200.05713.99
5.3.40.0230.03313.88
5.3.30.0230.06013.95
5.3.20.0230.04713.54
5.3.10.0270.05313.68
5.3.00.0230.07013.59
5.2.170.0270.05312.73
5.2.160.0130.04712.73
5.2.150.0130.06312.73
5.2.140.0200.05312.73
5.2.130.0230.06012.73
5.2.120.0200.05712.73
5.2.110.0270.05312.73
5.2.100.0230.05312.73
5.2.90.0230.05312.73
5.2.80.0170.04712.73
5.2.70.0270.06012.73
5.2.60.0200.02712.73
5.2.50.0200.04012.73
5.2.40.0230.05312.73
5.2.30.0200.05312.73
5.2.20.0130.04312.73
5.2.10.0200.06012.73
5.2.00.0170.03012.73
5.1.60.0200.04312.73
5.1.50.0270.02312.73
5.1.40.0170.05012.73
5.1.30.0130.03012.73
5.1.20.0300.02312.73
5.1.10.0200.05312.73
5.1.00.0200.05312.73
5.0.50.0030.04012.73
5.0.40.0070.03012.73
5.0.30.0070.06312.73
5.0.20.0100.03012.73
5.0.10.0100.01712.73
5.0.00.0100.06012.73
4.4.90.0070.02312.73
4.4.80.0070.01712.73
4.4.70.0130.03012.73
4.4.60.0100.01712.73
4.4.50.0070.03012.73
4.4.40.0130.04712.73
4.4.30.0070.02012.73
4.4.20.0100.02012.73
4.4.10.0130.02012.73
4.4.00.0070.05012.73
4.3.110.0130.01712.73
4.3.100.0030.03712.73
4.3.90.0030.02012.73
4.3.80.0070.02712.73
4.3.70.0100.01712.73
4.3.60.0070.03312.73
4.3.50.0070.03012.73
4.3.40.0070.04312.73
4.3.30.0070.03312.73
4.3.20.0030.04012.73
4.3.10.0070.03012.73
4.3.00.0000.02012.73

preferences:
48.89 ms | 400 KiB | 5 Q