3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($a = $b = []; count($a) < 512; $b = &$a[], $b = $a) ; var_dump($b);

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)
8.3.60.0200.01022.49
8.3.50.0360.01122.46
8.3.40.0260.02321.26
8.3.30.0340.01022.91
8.3.20.0190.00822.91
8.3.10.0140.00726.12
8.3.00.0280.00726.50
8.2.180.0280.01219.25
8.2.170.0290.01022.96
8.2.160.0350.00726.40
8.2.150.0200.00024.18
8.2.140.0250.00924.66
8.2.130.0190.00626.25
8.2.120.0090.00324.95
8.2.110.0100.00726.23
8.2.100.0200.01220.47
8.2.90.0110.00022.03
8.2.80.0030.00921.96
8.2.70.0050.01020.25
8.2.60.0040.00820.55
8.2.50.0030.00720.25
8.2.40.0110.00620.90
8.2.30.0050.01022.13
8.2.20.0060.00620.63
8.2.10.0060.00620.54
8.2.00.0050.01020.48
8.1.270.0180.01527.05
8.1.260.0110.00726.35
8.1.250.0210.00029.20
8.1.240.0100.00629.83
8.1.230.0230.01023.93
8.1.220.0080.00322.43
8.1.210.0100.00322.23
8.1.200.0150.00022.10
8.1.190.0090.00622.41
8.1.180.0030.01025.05
8.1.170.0110.00423.34
8.1.160.0120.00423.80
8.1.150.0040.00823.48
8.1.140.0100.00322.42
8.1.130.0080.00822.80
8.1.120.0080.00822.37
8.1.110.0080.00422.43
8.1.100.0090.00322.46
8.1.90.0130.00022.32
8.1.80.0120.00322.43
8.1.70.0120.00422.41
8.1.60.0000.01622.46
8.1.50.0070.00722.49
8.1.40.0100.00322.51
8.1.30.0030.01022.53
8.1.20.0100.00522.52
8.1.10.0030.01022.32
8.1.00.0050.01122.28
8.0.300.0120.00324.48
8.0.290.0110.00021.64
8.0.280.0080.00623.10
8.0.270.0000.01122.09
8.0.260.0060.00621.56
8.0.250.0060.00621.64
8.0.240.0090.00321.57
8.0.230.0080.00421.62
8.0.220.0080.00421.59
8.0.210.0100.00321.57
8.0.200.0100.00021.73
8.0.190.0090.00321.63
8.0.180.0050.01021.59
8.0.170.0000.01721.64
8.0.160.0110.00421.62
8.0.150.0100.00321.67
8.0.140.0110.00621.67
8.0.130.0100.00318.21
8.0.120.0040.00821.72
8.0.110.0120.00021.56
8.0.100.0040.00721.68
8.0.90.0070.00721.74
8.0.80.0260.02221.71
8.0.70.0070.00421.53
8.0.60.0120.00021.66
8.0.50.0090.00521.76
8.0.30.0490.01521.82
8.0.20.0360.02221.74
8.0.10.0060.00621.78
8.0.00.0370.01721.36
7.4.330.0090.00319.84
7.4.320.0060.00821.33
7.4.300.0120.00021.30
7.4.290.0170.00021.38
7.4.280.0110.00321.38
7.4.270.0130.00321.29
7.4.260.0050.00518.14
7.4.250.0040.01121.14
7.4.240.0100.00521.29
7.4.230.0130.00021.27
7.4.220.0170.03721.33
7.4.210.0140.02221.38
7.4.200.0060.00621.36
7.4.190.0080.00421.53
7.4.160.0390.01621.58
7.4.150.0370.01921.32
7.4.140.0300.01921.31
7.4.130.0350.02121.31
7.4.120.0300.02521.29
7.4.110.0500.02121.15
7.4.100.0460.03321.23
7.4.90.0560.03121.27
7.4.80.0330.03721.25
7.4.70.0260.02321.32
7.4.60.0210.01321.14
7.4.50.0220.00621.30
7.4.40.0180.00722.77
7.4.30.0410.01621.32
7.3.330.0120.00018.07
7.3.320.0060.00618.07
7.3.310.0050.01021.37
7.3.300.0110.00021.20
7.3.290.0160.02321.11
7.3.280.0190.01521.15
7.3.270.0250.01921.20
7.3.260.0330.02621.00
7.3.250.0480.03721.19
7.3.240.0270.02721.06
7.3.230.0370.01921.21
7.3.210.0350.02121.20
7.3.200.0210.02121.30
7.3.190.0250.01821.30
7.3.180.0320.00921.37
7.3.170.0250.01621.19
7.3.160.0330.03321.07
7.2.330.0340.02621.58
7.2.320.0280.02021.24
7.2.310.0350.01721.17
7.2.300.0420.03121.18
7.2.290.0170.03021.38
7.2.100.2940.01519.41
7.2.90.3310.01319.32
7.2.80.2910.00919.06
7.2.70.2600.01019.52
7.2.60.2830.00919.35
7.2.50.3010.01319.43
7.2.40.2660.01019.57
7.2.30.3450.01619.17
7.2.20.2200.01620.12
7.2.10.3770.01620.04
7.2.00.3020.01319.08
7.1.220.1950.01318.64
7.1.210.2850.01018.73
7.1.200.3040.01318.43
7.1.190.2960.01618.52
7.1.180.3040.00318.40
7.1.170.2830.00718.29
7.1.160.2820.00718.12
7.1.150.1480.00918.16
7.1.140.3150.00618.88
7.1.130.3270.01318.80
7.1.120.2120.01318.51
7.1.110.2530.01018.69
7.1.100.1980.01018.55
7.1.90.3000.01018.90
7.1.80.3090.01018.94
7.1.70.2510.01318.75
7.1.60.2600.02736.89
7.1.50.1520.01636.75
7.1.40.3080.01036.88
7.1.30.2770.00736.77
7.1.20.3630.00636.45
7.1.10.1390.01218.38
7.1.00.0510.01118.68
7.0.310.2730.01317.85
7.0.300.3120.00718.13
7.0.290.2930.00318.02
7.0.280.2810.01318.27
7.0.270.2750.00718.49
7.0.260.2940.01018.62
7.0.250.3240.01018.57
7.0.240.1890.01018.61
7.0.230.1170.01218.30
7.0.220.3750.02518.56
7.0.210.3390.01318.51
7.0.200.2080.01018.54
7.0.190.3040.01018.20
7.0.180.1980.00918.07
7.0.170.2310.00918.18
7.0.160.3710.01618.07
7.0.150.1630.01318.12
7.0.140.1320.01118.13
7.0.130.0470.01218.16
7.0.120.1560.00318.50
7.0.110.1170.01118.29
7.0.100.2180.01418.14
7.0.90.5620.02318.27
7.0.80.6020.01618.38
7.0.70.7260.01318.57
7.0.60.6740.01018.48
7.0.50.2250.01018.87
7.0.40.1500.00618.13
7.0.30.4040.01318.55
7.0.20.4640.00318.39
7.0.10.6510.01618.48
7.0.00.4630.01318.57
5.6.380.0210.02426.81
5.6.370.0300.03326.73
5.6.360.0280.01426.65
5.6.350.0410.01626.56
5.6.340.0210.03427.04
5.6.330.0330.02426.96
5.6.320.0360.02326.78
5.6.310.0300.01927.24
5.6.300.0340.01826.95
5.6.290.0360.01226.89
5.6.280.0370.00926.82
5.6.270.0360.01127.16
5.6.260.0310.02227.08
5.6.250.0290.02527.14
5.6.240.0260.02827.04
5.6.230.0250.02227.01
5.6.220.0310.01927.27
5.6.210.0370.01626.99
5.6.200.0360.01927.02
5.6.190.0300.01427.12
5.6.180.0270.03027.05
5.6.170.0230.02326.88
5.6.160.0270.02427.00
5.6.150.0180.02927.14
5.6.140.0190.01527.23
5.6.130.0240.01426.87
5.6.120.0190.01726.87
5.6.110.0300.01926.97
5.6.100.0290.02527.07
5.6.90.0200.02826.97
5.6.80.0240.02927.17
5.6.70.0260.02627.04
5.6.60.0310.01726.77
5.6.50.0230.04126.88
5.6.40.0360.01826.84
5.6.30.0250.03626.96
5.6.20.0210.02127.15
5.5.380.0260.02223.55
5.5.370.0240.02823.67
5.5.360.0310.01923.55
5.5.350.0330.02023.67
5.5.340.0300.02723.57
5.5.330.0280.01123.73
5.5.320.0190.01623.63
5.5.310.0360.01223.67
5.5.300.0280.01423.69
5.5.290.0140.02823.50
5.5.280.0190.02223.58
5.5.270.0210.01823.64
5.5.260.0410.01323.55
5.5.250.0230.01923.73
5.5.240.0330.01623.52
5.5.230.0300.01023.44
5.5.220.0300.02023.70
5.5.210.0300.02523.88
5.5.200.0350.01223.76
5.5.190.0290.01323.70
5.5.180.0300.01423.74
5.4.450.0330.00723.47
5.4.440.0320.01323.66
5.4.430.0130.02623.77
5.4.420.0380.00623.71
5.4.410.0280.02523.61
5.4.400.0150.01823.46
5.4.390.0220.02623.68
5.4.380.0220.02923.53
5.4.370.0220.02023.62
5.4.360.0350.01923.66
5.4.350.0490.00723.72
5.4.340.0270.01623.82

preferences:
79.42 ms | 400 KiB | 5 Q