3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo key(array('foo' => NULL));

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
8.3.60.0070.01318.18
8.3.50.0130.00521.14
8.3.40.0110.00418.56
8.3.30.0100.00320.16
8.3.20.0040.00420.40
8.3.10.0030.00520.95
8.3.00.0040.00423.52
8.2.180.0070.01416.63
8.2.170.0070.01022.96
8.2.160.0100.00320.52
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00020.78
8.2.110.0090.00022.26
8.2.100.0080.00317.59
8.2.90.0040.00419.21
8.2.80.0060.00319.25
8.2.70.0060.00317.63
8.2.60.0000.01117.55
8.2.50.0080.00318.07
8.2.40.0000.00718.09
8.2.30.0040.00419.52
8.2.20.0000.00717.57
8.2.10.0040.00417.57
8.2.00.0000.00817.60
8.1.280.0040.01425.92
8.1.270.0080.00023.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00322.33
8.1.230.0060.00620.78
8.1.220.0040.00418.77
8.1.210.0000.00718.89
8.1.200.0040.00417.10
8.1.190.0040.00417.38
8.1.180.0050.00318.10
8.1.170.0070.00018.51
8.1.160.0030.00518.79
8.1.150.0000.01018.50
8.1.140.0040.00417.43
8.1.130.0030.00317.86
8.1.120.0000.00717.33
8.1.110.0000.00817.31
8.1.100.0000.00717.27
8.1.90.0030.00517.34
8.1.80.0000.00817.25
8.1.70.0030.00317.24
8.1.60.0000.00917.45
8.1.50.0040.00417.24
8.1.40.0050.00317.39
8.1.30.0030.00517.42
8.1.20.0000.00817.41
8.1.10.0040.00417.33
8.1.00.0050.00217.26
8.0.300.0040.00419.87
8.0.290.0070.00017.05
8.0.280.0070.00018.36
8.0.270.0050.00317.29
8.0.260.0050.00216.74
8.0.250.0040.00416.87
8.0.240.0000.00716.94
8.0.230.0030.00316.89
8.0.220.0000.00716.74
8.0.210.0040.00416.74
8.0.200.0060.00016.75
8.0.190.0050.00316.73
8.0.180.0000.00716.79
8.0.170.0000.00716.61
8.0.160.0000.00716.66
8.0.150.0030.00316.63
8.0.140.0030.00316.72
8.0.130.0000.00513.14
8.0.120.0040.00416.59
8.0.110.0000.00716.55
8.0.100.0040.00416.61
8.0.90.0040.00416.65
8.0.80.0090.00616.80
8.0.70.0030.00316.70
8.0.60.0050.00316.61
8.0.50.0000.00716.55
8.0.30.0100.00817.02
8.0.20.0060.01117.40
8.0.10.0000.00716.95
8.0.00.0050.01816.57
7.4.330.0020.00215.00
7.4.320.0030.00316.50
7.4.300.0080.00016.45
7.4.290.0070.00016.45
7.4.280.0000.00716.37
7.4.270.0030.00316.46
7.4.260.0030.00313.13
7.4.250.0000.00716.32
7.4.240.0030.00316.37
7.4.230.0040.00416.55
7.4.220.0090.01216.43
7.4.210.0090.00716.43
7.4.200.0000.00816.47
7.4.190.0030.00416.42
7.4.160.0090.00916.36
7.4.150.0120.00617.40
7.4.140.0070.01217.86
7.4.130.0160.00416.37
7.4.120.0100.00716.23
7.4.110.0070.01116.53
7.4.100.0150.00316.48
7.4.90.0070.01016.25
7.4.80.0060.01119.39
7.4.70.0030.01516.31
7.4.60.0040.01316.32
7.4.50.0040.00416.46
7.4.40.0070.01022.77
7.4.30.0030.02016.54
7.4.00.0080.00714.89
7.3.330.0030.00312.87
7.3.320.0060.00013.04
7.3.310.0000.00716.26
7.3.300.0070.00016.13
7.3.290.0040.01116.11
7.3.280.0090.00716.09
7.3.270.0110.00617.40
7.3.260.0100.00918.24
7.3.250.0080.00816.24
7.3.240.0070.01016.43
7.3.230.0110.00616.49
7.3.210.0110.00516.45
7.3.200.0110.00719.39
7.3.190.0030.01416.36
7.3.180.0080.00816.45
7.3.170.0080.00816.27
7.3.160.0030.01316.23
7.3.120.0110.00714.91
7.3.110.0140.00314.88
7.3.100.0060.00914.77
7.3.90.0060.00614.86
7.3.80.0060.00914.60
7.3.70.0100.00714.52
7.3.60.0070.00714.57
7.3.50.0000.01214.56
7.3.40.0100.00714.46
7.3.30.0060.00614.46
7.3.20.0060.00316.55
7.3.10.0080.00416.55
7.3.00.0060.00916.68
7.2.330.0100.00616.52
7.2.320.0000.01816.64
7.2.310.0090.00816.18
7.2.300.0060.01116.46
7.2.290.0100.00616.34
7.2.250.0160.00315.00
7.2.240.0150.00315.08
7.2.230.0120.00615.05
7.2.220.0060.00614.73
7.2.210.0040.01114.70
7.2.200.0060.01314.96
7.2.190.0000.01414.96
7.2.180.0060.01214.93
7.2.170.0060.00914.96
7.2.80.0030.00316.30
7.2.60.0100.00616.66
7.2.00.0030.00719.31
7.1.330.0100.00315.55
7.1.320.0080.00415.63
7.1.310.0030.01015.54
7.1.300.0030.01015.65
7.1.290.0070.00715.69
7.1.280.0100.00715.56
7.1.270.0070.00715.76
7.1.260.0070.00715.49
7.1.200.0060.00615.63
7.1.100.0000.01317.91
7.1.70.0040.00417.00
7.1.60.0040.02119.17
7.1.50.0100.01316.90
7.1.00.0000.03722.43
7.0.200.0030.00616.77
7.0.140.0030.07022.09
7.0.60.0330.05720.02
7.0.50.0070.05317.76
7.0.40.0070.04020.20
7.0.30.0630.06720.02
7.0.20.0400.07020.09
7.0.10.0270.08020.00
7.0.00.0100.04319.99
5.6.280.0100.06721.09
5.6.210.0170.07020.70
5.6.200.0070.04718.21
5.6.190.0030.04720.41
5.6.180.0370.06720.41
5.6.170.0300.04720.47
5.6.160.0100.06320.41
5.6.150.0100.08318.11
5.6.140.0030.08018.11
5.6.130.0000.09018.21
5.6.120.0200.04321.13
5.6.110.0170.08320.97
5.6.100.0000.05021.10
5.6.90.0070.06720.87
5.6.80.0130.05720.34
5.5.350.0130.08020.38
5.5.340.0030.05317.88
5.5.330.0030.08720.25
5.5.320.0100.03720.21
5.5.310.0200.06020.29
5.5.300.0070.04017.91
5.5.290.0100.07717.97
5.5.280.0030.09020.76
5.5.270.0070.06720.97
5.5.260.0000.04320.71
5.5.250.0030.09020.76
5.5.240.0070.08320.25
5.4.450.0330.07319.21
5.4.440.0430.03719.49
5.4.430.0530.04719.11
5.4.420.0530.05019.10
5.4.410.0370.03719.48
5.4.400.0470.03718.88
5.4.390.0570.06318.93
5.4.380.0530.06719.22
5.4.370.0600.06319.10
5.4.360.0500.07018.92
5.4.350.0530.06019.06
5.4.340.0600.05319.08
5.4.320.0600.06019.08
5.4.310.0570.06319.08
5.4.300.0400.04019.21
5.4.290.0470.06319.21
5.4.280.0600.05019.13
5.4.270.0670.04318.78
5.4.260.0500.06319.21
5.4.250.0530.07019.23
5.4.240.0400.05019.09
5.4.230.0430.03318.92
5.4.220.0570.03718.78
5.4.210.0500.04319.16
5.4.200.0570.04719.25
5.4.190.0600.05718.91
5.4.180.0530.06319.12
5.4.170.0500.07018.92
5.4.160.0500.04019.11
5.4.150.0530.06719.07
5.4.140.0400.04316.31
5.4.130.0670.05016.45
5.4.120.0470.03716.53
5.4.110.0500.06316.48
5.4.100.0570.06016.43
5.4.90.0570.04316.47
5.4.80.0170.07016.48
5.4.70.0230.07016.21
5.4.60.0400.05716.44
5.4.50.0470.04316.20
5.4.40.0400.03016.39
5.4.30.0370.03316.18
5.4.20.0530.06016.17
5.4.10.0430.04316.30
5.4.00.0530.05715.74
5.3.290.0600.06314.59
5.3.280.0430.03714.52
5.3.270.0600.06014.45
5.3.260.0570.05314.44
5.3.250.0500.06314.54
5.3.240.0430.05014.51
5.3.230.0500.04314.54
5.3.220.0570.05714.51
5.3.210.0600.06314.54
5.3.200.0500.04014.65
5.3.190.0370.04314.46
5.3.180.0330.04714.41
5.3.170.0230.07314.41
5.3.160.0470.06014.52
5.3.150.0370.04014.42
5.3.140.0370.04014.41
5.3.130.0470.04014.39
5.3.120.0470.06014.49
5.3.110.0430.04314.50
5.3.100.0530.07013.99
5.3.90.0400.06713.87
5.3.80.0500.04014.04
5.3.70.0400.03713.95
5.3.60.0470.05013.87
5.3.50.0470.06713.71
5.3.40.0370.05013.89
5.3.30.0470.06313.99
5.3.20.0470.05713.53
5.3.10.0470.05013.74
5.3.00.0470.06713.59
5.2.170.0370.03712.56
5.2.160.0270.04312.56
5.2.150.0370.02312.56
5.2.140.0430.04312.56
5.2.130.0430.05312.56
5.2.120.0400.04712.56
5.2.110.0330.04312.56
5.2.100.0400.05012.56
5.2.90.0330.03012.56
5.2.80.0400.05712.56
5.2.70.0330.02712.56
5.2.60.0370.02712.56
5.2.50.0370.02312.56
5.2.40.0330.04012.56
5.2.30.0330.05312.56
5.2.20.0370.05012.56
5.2.10.0200.03312.56
5.2.00.0330.05312.56
5.1.60.0370.04712.56
5.1.50.0270.04312.56
5.1.40.0300.04012.56
5.1.30.0370.04712.56
5.1.20.0330.03012.56
5.1.10.0300.05012.56
5.1.00.0330.05012.56
5.0.50.0170.02312.56
5.0.40.0130.04012.56
5.0.30.0170.03712.56
5.0.20.0230.04012.56
5.0.10.0230.03312.56
5.0.00.0200.05712.56
4.4.90.0170.03012.56
4.4.80.0100.01712.56
4.4.70.0230.02312.56
4.4.60.0170.02012.56
4.4.50.0100.02012.56
4.4.40.0170.04712.56
4.4.30.0230.02712.56
4.4.20.0170.02312.56
4.4.10.0170.02312.56
4.4.00.0170.04712.56
4.3.110.0170.03012.56
4.3.100.0130.03012.56
4.3.90.0270.01012.56
4.3.80.0170.04012.56
4.3.70.0170.03312.56
4.3.60.0170.02712.56
4.3.50.0130.02312.56
4.3.40.0170.04712.56
4.3.30.0100.04012.56
4.3.20.0130.03312.56
4.3.10.0070.03712.56
4.3.00.0100.02712.56

preferences:
57.18 ms | 401 KiB | 5 Q