3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo array_keys(['a' => 1])[0];

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)
8.3.60.0110.00417.93
8.3.50.0150.00016.27
8.3.40.0070.00718.70
8.3.30.0110.00418.65
8.3.20.0000.00820.20
8.3.10.0080.00023.66
8.3.00.0050.00319.67
8.2.180.0110.00716.75
8.2.170.0140.00322.96
8.2.160.0140.00018.91
8.2.150.0040.01124.18
8.2.140.0050.00224.66
8.2.130.0080.00319.29
8.2.120.0000.00726.35
8.2.110.0060.00319.33
8.2.100.0090.00317.78
8.2.90.0030.00519.28
8.2.80.0000.00817.97
8.2.70.0030.00717.63
8.2.60.0080.00018.04
8.2.50.0040.00418.10
8.2.40.0000.00820.59
8.2.30.0050.00321.10
8.2.20.0000.00718.03
8.2.10.0020.00518.02
8.2.00.0040.00417.98
8.1.280.0060.00825.92
8.1.270.0070.00022.06
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.14
8.1.230.0040.00720.67
8.1.220.0080.00017.74
8.1.210.0050.00318.77
8.1.200.0000.01017.10
8.1.190.0040.00417.11
8.1.180.0050.00318.10
8.1.170.0000.00818.60
8.1.160.0030.00318.99
8.1.150.0040.00420.51
8.1.140.0040.00419.35
8.1.130.0000.00818.75
8.1.120.0050.00217.24
8.1.110.0080.00017.23
8.1.100.0040.00417.34
8.1.90.0040.00317.35
8.1.80.0050.00217.29
8.1.70.0090.00017.35
8.1.60.0060.00317.46
8.1.50.0000.00817.41
8.1.40.0070.00317.40
8.1.30.0070.00017.56
8.1.20.0040.00417.50
8.1.10.0040.00417.42
8.1.00.0000.00817.35
8.0.300.0000.00718.77
8.0.290.0050.00516.63
8.0.280.0030.00518.28
8.0.270.0040.00417.29
8.0.260.0030.00616.75
8.0.250.0070.00016.90
8.0.240.0000.00716.78
8.0.230.0000.00716.75
8.0.220.0000.00716.76
8.0.210.0040.00416.81
8.0.200.0030.00316.73
8.0.190.0000.00816.84
8.0.180.0070.00016.82
8.0.170.0050.00316.79
8.0.160.0040.00416.83
8.0.150.0080.00016.59
8.0.140.0000.00916.60
8.0.130.0050.00013.05
8.0.120.0000.00816.73
8.0.110.0040.00416.63
8.0.100.0000.00716.54
8.0.90.0030.00516.87
8.0.80.0090.00616.64
8.0.70.0040.00416.61
8.0.60.0030.00416.61
8.0.50.0040.00416.76
8.0.30.0090.01017.02
8.0.20.0090.01217.40
8.0.10.0040.00416.75
8.0.00.0110.00716.75
7.4.330.0020.00215.55
7.4.320.0030.00316.39
7.4.300.0000.00616.43
7.4.290.0080.00016.46
7.4.280.0040.00416.47
7.4.270.0070.00016.43
7.4.260.0050.00216.32
7.4.250.0030.00516.41
7.4.240.0000.00816.29
7.4.230.0040.00416.11
7.4.220.0060.01216.46
7.4.210.0080.00716.45
7.4.200.0070.00016.30
7.4.160.0110.00516.28
7.4.150.0100.00717.40
7.4.140.0120.00817.86
7.4.130.0160.00416.38
7.4.120.0130.00716.47
7.4.110.0030.01616.58
7.4.100.0130.00416.36
7.4.90.0110.00716.44
7.4.80.0060.01119.39
7.4.70.0070.01416.37
7.4.60.0070.01416.30
7.4.50.0040.01116.54
7.4.40.0110.00516.62
7.4.30.0060.00916.35
7.4.00.0060.00914.93
7.3.330.0020.00212.99
7.3.320.0000.00513.11
7.3.310.0070.00016.02
7.3.300.0040.00416.24
7.3.290.0080.00816.18
7.3.280.0100.00616.21
7.3.270.0220.00317.40
7.3.260.0110.00516.15
7.3.250.0090.01016.26
7.3.240.0160.00516.25
7.3.230.0060.00916.54
7.3.210.0130.00316.20
7.3.200.0060.01016.25
7.3.190.0070.01016.38
7.3.180.0130.00316.41
7.3.170.0040.01216.28
7.3.160.0140.00316.37
7.3.10.0040.01116.49
7.3.00.0000.01316.73
7.2.330.0070.01016.47
7.2.320.0030.01616.59
7.2.310.0090.00716.37
7.2.300.0160.00016.32
7.2.290.0070.01016.46
7.2.130.0000.01616.70
7.2.120.0070.00716.80
7.2.110.0000.01316.53
7.2.100.0030.01416.79
7.2.90.0090.00616.66
7.2.80.0030.01016.81
7.2.70.0040.00716.73
7.2.60.0040.00816.46
7.2.50.0140.00316.73
7.2.40.0120.00316.96
7.2.30.0090.00316.93
7.2.20.0060.00916.73
7.2.10.0000.01516.99
7.2.00.0050.00618.08
7.1.250.0040.00415.74
7.1.200.0000.01015.71
7.1.100.0000.00918.00
7.1.70.0070.01317.03
7.1.60.0700.02735.14
7.1.50.0570.01733.05
7.1.40.0710.01432.54
7.1.30.0480.02732.55
7.1.20.0680.01134.55
7.1.10.0390.01616.54
7.1.00.0190.01016.68
7.0.200.0470.01116.76
7.0.190.0060.01516.68
7.0.180.0130.01215.96
7.0.170.0390.01414.20
7.0.160.0430.01216.24
7.0.150.0540.00914.30
7.0.140.0100.01716.38
7.0.130.0040.01816.31
7.0.120.0430.01014.62
7.0.110.0170.00716.16
7.0.100.0510.00314.36
7.0.90.0450.01316.36
7.0.80.0110.01016.37
7.0.70.0440.01314.22
7.0.60.0100.01015.84
7.0.50.0110.00816.27
7.0.40.0130.01016.30
7.0.30.0410.00816.07
7.0.20.0450.01214.52
7.0.10.0320.01314.58
7.0.00.0270.01716.18

preferences:
43.29 ms | 401 KiB | 5 Q