3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [ false => 'foo', 0 => 'bar' ]; foreach($a as $key => $value) { var_dump($key); }

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)
8.3.60.0120.00918.34
8.3.50.0100.01021.28
8.3.40.0110.00418.59
8.3.30.0070.01018.83
8.3.20.0080.00021.93
8.3.10.0060.00321.77
8.3.00.0000.00817.50
8.2.180.0130.01018.16
8.2.170.0040.01122.96
8.2.160.0130.00720.39
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0060.00319.11
8.2.110.0060.00320.57
8.2.100.0080.00417.72
8.2.90.0040.00419.21
8.2.80.0040.00418.03
8.2.70.0060.00317.50
8.2.60.0000.00718.04
8.2.50.0000.00818.07
8.2.40.0040.00417.91
8.2.30.0000.00819.84
8.2.20.0070.00017.55
8.2.10.0040.00418.06
8.2.00.0000.00718.29
8.1.280.0030.01425.92
8.1.270.0000.00820.24
8.1.260.0000.00826.35
8.1.250.0070.00028.09
8.1.240.0000.01022.35
8.1.230.0070.00420.95
8.1.220.0080.00018.77
8.1.210.0000.00818.89
8.1.200.0000.00817.35
8.1.190.0070.00017.66
8.1.180.0090.00018.10
8.1.170.0000.00818.41
8.1.160.0000.00718.80
8.1.150.0080.00018.92
8.1.140.0040.00417.35
8.1.130.0070.00017.78
8.1.120.0000.00717.51
8.1.110.0080.00017.53
8.1.100.0030.00317.50
8.1.90.0000.00717.46
8.1.80.0040.00317.34
8.1.70.0000.00717.42
8.1.60.0040.00417.55
8.1.50.0000.00817.58
8.1.40.0070.00017.51
8.1.30.0040.00417.53
8.1.20.0000.00717.53
8.1.10.0030.00517.50
8.1.00.0050.00217.43
8.0.300.0070.00019.86
8.0.290.0040.00417.05
8.0.280.0030.00318.45
8.0.270.0040.00417.16
8.0.260.0000.00617.30
8.0.250.0030.00716.94
8.0.240.0030.00517.00
8.0.230.0030.00316.83
8.0.220.0050.00316.79
8.0.210.0050.00316.90
8.0.200.0040.00416.92
8.0.190.0030.00516.96
8.0.180.0070.00016.80
8.0.170.0050.00316.91
8.0.160.0040.00416.89
8.0.150.0080.00016.90
8.0.140.0050.00316.85
8.0.130.0000.00513.27
8.0.120.0000.00816.87
8.0.110.0000.00816.93
8.0.100.0000.00716.85
8.0.90.0050.00216.93
8.0.80.0030.01216.84
8.0.70.0040.00416.96
8.0.60.0040.00416.95
8.0.50.0000.00716.82
8.0.30.0160.00716.96
8.0.20.0100.00817.40
8.0.10.0070.00016.98
8.0.00.0050.01316.74
7.4.330.0030.00315.20
7.4.320.0030.00316.61
7.4.300.0030.00316.49
7.4.290.0000.00716.65
7.4.280.0030.00516.49
7.4.270.0070.00016.52
7.4.260.0030.00316.48
7.4.250.0040.00416.63
7.4.240.0020.00616.48
7.4.230.0030.00316.40
7.4.220.0120.00616.52
7.4.210.0070.01116.63
7.4.200.0030.00616.60
7.4.160.0070.00716.37
7.4.150.0100.00717.40
7.4.140.0110.00817.86
7.4.130.0090.00916.59
7.4.120.0100.00716.42
7.4.110.0060.01316.36
7.4.100.0130.01116.38
7.4.90.0030.01316.45
7.4.80.0180.00319.39
7.4.70.0060.01216.59
7.4.60.0070.01016.35
7.4.50.0040.00416.34
7.4.40.0060.01116.49
7.4.30.0030.01316.30
7.4.00.0030.00915.04
7.3.330.0000.00513.00
7.3.320.0070.00012.90
7.3.310.0040.00416.14
7.3.300.0000.00716.26
7.3.290.0070.00716.29
7.3.280.0100.00516.24
7.3.270.0180.00017.40
7.3.260.0180.00016.71
7.3.250.0100.00916.27
7.3.240.0120.00616.36
7.3.230.0120.00916.39
7.3.210.0100.00716.49
7.3.200.0150.00619.39
7.3.190.0150.00016.45
7.3.180.0100.00616.30
7.3.170.0090.01216.27
7.3.160.0100.01016.64
7.3.10.0030.00716.69
7.3.00.0110.00416.51
7.2.330.0070.01116.38
7.2.320.0100.00716.60
7.2.310.0060.01716.30
7.2.300.0140.00716.71
7.2.290.0120.00616.43
7.2.130.0080.00316.93
7.2.120.0050.00516.80
7.2.110.0040.01216.84
7.2.100.0000.01616.80
7.2.90.0060.00916.60
7.2.80.0030.01116.85
7.2.70.0090.00616.70
7.2.60.0040.00716.71
7.2.50.0000.01217.04
7.2.40.0040.00717.00
7.2.30.0000.01116.73
7.2.20.0070.00716.89
7.2.10.0100.00616.68
7.2.00.0060.00618.10
7.1.250.0060.00615.83
7.1.200.0090.00615.63
7.1.100.0090.00318.18
7.1.70.0030.00617.15
7.1.60.0000.02319.50
7.1.50.0040.01816.66
7.1.00.0070.07022.45
7.0.200.0040.00416.86
7.0.60.0100.07719.89
7.0.50.0000.07017.89
7.0.40.0100.04020.19
7.0.30.0270.03720.03
7.0.20.0270.07019.99
7.0.10.0030.08320.17
7.0.00.0170.07020.12
5.6.280.0130.06721.10
5.6.210.0130.08320.72
5.6.200.0030.07018.10
5.6.190.0100.04320.43
5.6.180.0300.05320.56
5.6.170.0270.04020.33
5.6.160.0070.05020.61
5.6.150.0030.08318.21
5.6.140.0230.07018.21
5.6.130.0030.04018.18
5.6.120.0070.05021.05
5.6.110.0130.06021.02
5.6.100.0100.08321.02
5.6.90.0100.08020.97
5.6.80.0170.07020.40
5.5.350.0270.04320.33
5.5.340.0070.05017.91
5.5.330.0100.04020.23
5.5.320.0270.07320.34
5.5.310.0330.07320.13
5.5.300.0170.07717.92
5.5.290.0070.04318.02
5.5.280.0070.04320.80
5.5.270.0100.03720.76
5.5.260.0200.07020.88
5.5.250.0130.07020.50
5.5.240.0030.05020.12
5.4.450.0170.05019.42
5.4.440.0200.03719.25
5.4.430.1430.04019.41
5.4.420.0330.04019.26
5.4.410.0000.06318.68
5.4.400.0170.04718.66
5.4.390.0030.06018.67
5.4.380.0130.06318.68
5.4.370.0100.05018.64
5.4.360.0270.03718.50
5.4.350.0100.05718.74
5.4.340.0100.05318.46
5.4.320.0330.05318.49
5.4.310.0200.06318.77
5.4.300.0100.05318.71
5.4.290.0200.04018.71
5.4.280.0230.05718.71
5.4.270.0200.06318.49
5.4.260.0170.06318.75
5.4.250.0070.05718.50
5.4.240.0200.05318.68
5.4.230.0170.06718.70
5.4.220.0130.06718.44
5.4.210.0100.07018.77
5.4.200.0130.06016.64
5.4.190.0070.06318.72
5.4.180.0100.05318.44
5.4.170.0100.05318.61
5.4.160.0030.06018.59
5.4.150.0100.05318.53
5.4.140.0100.05316.36
5.4.130.0070.07016.20
5.4.120.0070.05716.15
5.4.110.0130.04716.22
5.4.100.0000.06316.20
5.4.90.0130.04716.03
5.4.80.0030.06016.23
5.4.70.0070.05716.29
5.4.60.0130.04716.28
5.4.50.0100.05016.05
5.4.40.0100.05016.23
5.4.30.0100.05716.22
5.4.20.0100.05016.11
5.4.10.0070.05716.20
5.4.00.0000.05315.67
5.3.290.0100.07314.65
5.3.280.0030.07014.55
5.3.270.0200.04714.51
5.3.260.0030.06014.70
5.3.250.0100.05314.61
5.3.240.0130.04714.59
5.3.230.0170.04714.57
5.3.220.0170.04314.55
5.3.210.0070.05714.64
5.3.200.0130.04714.52
5.3.190.0200.06014.54
5.3.180.0130.05314.61
5.3.170.0100.05314.52
5.3.160.0130.05714.46
5.3.150.0100.05314.56
5.3.140.0100.05014.55
5.3.130.0170.06714.59
5.3.120.0130.06014.50
5.3.110.0170.05714.63
5.3.100.0100.05013.96
5.3.90.0100.05314.02
5.3.80.0070.05314.01
5.3.70.0070.05313.93
5.3.60.0070.07013.94
5.3.50.0200.05713.91
5.3.40.0170.04713.92
5.3.30.0070.07314.00
5.3.20.0100.05313.60
5.3.10.0170.04713.60
5.3.00.0130.06313.56
5.2.170.0100.04011.07
5.2.160.0100.04011.17
5.2.150.0130.03711.17
5.2.140.0070.04311.09
5.2.130.0030.04311.01
5.2.120.0100.03711.14
5.2.110.0030.04311.14
5.2.100.0030.04311.03
5.2.90.0030.04711.14
5.2.80.0100.04311.05
5.2.70.0100.04011.07
5.2.60.0070.04311.05
5.2.50.0100.04011.00
5.2.40.0070.04311.13
5.2.30.0130.03311.00
5.2.20.0130.03310.94
5.2.10.0100.03710.83
5.2.00.0100.04310.67
5.1.60.0070.0339.96
5.1.50.0070.0379.98
5.1.40.0030.03710.00
5.1.30.0170.02710.49
5.1.20.0030.04310.32
5.1.10.0100.03310.12
5.1.00.0030.05710.20
5.0.50.0030.0438.61
5.0.40.0070.0408.47
5.0.30.0170.0478.36
5.0.20.0100.0338.18
5.0.10.0030.0408.23
5.0.00.0070.0538.33
4.4.90.0070.0275.88
4.4.80.0130.0205.86
4.4.70.0070.0275.84
4.4.60.0000.0235.89
4.4.50.0030.0205.82
4.4.40.0000.0375.88
4.4.30.0100.0135.87
4.4.20.0030.0275.96
4.4.10.0000.0235.94
4.4.00.0000.0375.94
4.3.110.0130.0135.84
4.3.100.0000.0235.82
4.3.90.0030.0205.87
4.3.80.0070.0335.91
4.3.70.0030.0205.77
4.3.60.0030.0235.79
4.3.50.0000.0305.76
4.3.40.0100.0275.79
4.3.30.0000.0234.58
4.3.20.0000.0234.57
4.3.10.0030.0234.52
4.3.00.0030.01314.44

preferences:
52.27 ms | 401 KiB | 5 Q