3v4l.org

run code in 300+ PHP versions simultaneously
<?php function call_debug_backtrace() { $bt = debug_backtrace(); $bt[1]["args"][0] = "altered"; } function foo($a) { var_dump($a); call_debug_backtrace(); var_dump($a); } $a = 1; foo($a);

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)
8.3.70.0130.00316.46
8.3.60.0120.00618.56
8.3.50.0170.00521.21
8.3.40.0120.00318.79
8.3.30.0120.00319.23
8.3.20.0040.00420.29
8.3.10.0040.00421.91
8.3.00.0080.00323.66
8.2.190.0120.00616.75
8.2.180.0040.01218.29
8.2.170.0090.00922.96
8.2.160.0100.00322.16
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0000.00719.89
8.2.110.0030.00621.00
8.2.100.0090.00317.50
8.2.90.0030.00619.05
8.2.80.0050.00317.97
8.2.70.0050.00517.63
8.2.60.0070.00017.93
8.2.50.0000.00918.07
8.2.40.0080.00021.19
8.2.30.0000.00819.87
8.2.20.0030.00417.62
8.2.10.0000.00717.93
8.2.00.0090.00018.01
8.1.280.0110.00425.92
8.1.270.0080.00023.85
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0030.00619.17
8.1.230.0080.00417.78
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0040.00417.22
8.1.190.0000.00917.00
8.1.180.0000.00818.10
8.1.170.0000.00818.46
8.1.160.0050.00221.88
8.1.150.0000.00718.72
8.1.140.0030.00517.39
8.1.130.0030.00317.64
8.1.120.0050.00317.42
8.1.110.0070.00017.42
8.1.100.0030.00317.45
8.1.90.0030.00417.41
8.1.80.0030.00617.36
8.1.70.0000.00717.42
8.1.60.0000.00717.57
8.1.50.0000.00817.44
8.1.40.0060.00317.41
8.1.30.0050.00317.48
8.1.20.0000.00717.66
8.1.10.0040.00417.52
8.1.00.0040.00417.39
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0060.00318.35
8.0.270.0000.00716.77
8.0.260.0050.00217.12
8.0.250.0040.00416.94
8.0.240.0000.00616.95
8.0.230.0040.00416.76
8.0.220.0030.00316.84
8.0.210.0000.00716.82
8.0.200.0040.00416.80
8.0.190.0000.00716.83
8.0.180.0000.00816.73
8.0.170.0040.00416.81
8.0.160.0060.00316.88
8.0.150.0050.00316.68
8.0.140.0040.00416.69
8.0.130.0000.00513.23
8.0.120.0080.00016.77
8.0.110.0000.00816.89
8.0.100.0040.00416.66
8.0.90.0000.00816.70
8.0.80.0070.00816.80
8.0.70.0040.00416.89
8.0.60.0030.00516.84
8.0.50.0000.00716.84
8.0.30.0100.00617.06
8.0.20.0180.00317.40
8.0.10.0040.00416.91
8.0.00.0140.00416.63
7.4.330.0000.00515.27
7.4.320.0060.00016.47
7.4.300.0070.00016.56
7.4.290.0070.00016.59
7.4.280.0000.00716.64
7.4.270.0070.00016.52
7.4.260.0070.00016.42
7.4.250.0070.00016.46
7.4.240.0050.00316.51
7.4.230.0030.00316.63
7.4.220.0070.01116.55
7.4.210.0090.00616.48
7.4.200.0040.00416.50
7.4.160.0040.01116.29
7.4.150.0190.00317.40
7.4.140.0100.01117.86
7.4.130.0100.00916.40
7.4.120.0070.01216.36
7.4.110.0140.00316.27
7.4.100.0040.01316.36
7.4.90.0060.01116.36
7.4.80.0070.01019.39
7.4.70.0100.00716.41
7.4.60.0040.01216.27
7.4.50.0030.00616.53
7.4.40.0110.00716.25
7.4.30.0090.00916.43
7.4.00.0100.00315.12
7.3.330.0000.00613.18
7.3.320.0000.00613.29
7.3.310.0000.00716.32
7.3.300.0030.00416.26
7.3.290.0030.00316.28
7.3.280.0120.00516.32
7.3.270.0110.00817.40
7.3.260.0130.00716.30
7.3.250.0080.01016.42
7.3.240.0100.00716.54
7.3.230.0150.00416.39
7.3.210.0090.00616.27
7.3.200.0170.00616.62
7.3.190.0090.00616.45
7.3.180.0040.01116.64
7.3.170.0170.00016.33
7.3.160.0150.00616.22
7.3.10.0040.01116.35
7.3.00.0030.01016.53
7.2.330.0110.00816.36
7.2.320.0060.01016.74
7.2.310.0140.00816.48
7.2.300.0090.00616.35
7.2.290.0090.01416.79
7.2.130.0130.00316.83
7.2.120.0110.00416.70
7.2.110.0090.00816.68
7.2.100.0000.01316.81
7.2.90.0060.00316.79
7.2.80.0030.00716.85
7.2.70.0000.01216.81
7.2.60.0020.01216.71
7.2.50.0070.00416.61
7.2.40.0100.00716.89
7.2.30.0060.00616.77
7.2.20.0060.00617.02
7.2.10.0090.00616.96
7.2.00.0060.01016.86
7.1.250.0000.01015.74
7.1.200.0060.00615.89
7.1.70.0070.00017.23
7.1.60.0090.01519.42
7.1.50.0110.01116.94
7.1.00.0070.07322.54
7.0.200.0000.01016.83
7.0.60.0070.08719.83
7.0.50.0000.04317.92
7.0.40.0000.06720.09
7.0.30.0300.04020.09
7.0.20.0300.06020.22
7.0.10.0070.05720.16
7.0.00.0100.08020.09
5.6.280.0030.03320.91
5.6.210.0030.08320.76
5.6.200.0130.03318.24
5.6.190.0070.06720.34
5.6.180.0030.08020.41
5.6.170.0370.07020.57
5.6.160.0070.07720.46
5.6.150.0030.04018.27
5.6.140.0030.08318.15
5.6.130.0000.05318.19
5.6.120.0070.07321.06
5.6.110.0100.07020.97
5.6.100.0000.06321.14
5.6.90.0070.03720.98
5.6.80.0070.06720.36
5.5.350.0100.07020.33
5.5.340.0030.05018.07
5.5.330.0170.07020.29
5.5.320.0230.08320.31
5.5.310.0300.05320.27
5.5.300.0070.03718.07
5.5.290.0030.08717.96
5.5.280.0070.06020.84
5.5.270.0130.03720.65
5.5.260.0030.05020.77
5.5.250.0100.08320.59
5.5.240.0130.07720.16
5.4.450.0470.07019.59
5.4.440.0830.08319.70
5.4.430.1070.07319.57
5.4.420.0970.05019.58
5.4.410.0500.04019.57
5.4.400.0100.06019.16
5.4.390.0130.07019.01
5.4.380.0670.06019.14
5.4.370.0970.05319.15
5.4.360.0600.07019.28
5.4.350.0670.05719.16
5.4.340.0200.04719.25
5.4.320.0400.04319.29
5.4.310.0870.05718.84
5.4.300.0930.06019.01
5.4.290.0970.06019.14
5.4.280.0800.06719.05
5.4.270.0900.05719.30
5.4.260.0870.07019.13
5.4.250.0830.07319.00
5.4.240.1030.04718.82
5.4.230.1030.06719.29
5.4.220.0900.07319.14
5.4.210.0870.05018.98
5.4.200.0800.05316.83
5.4.190.0770.06319.04
5.4.180.1000.07319.08
5.4.170.1000.07018.92
5.4.160.0870.06718.94
5.4.150.0830.05319.04
5.4.140.0870.07016.50
5.4.130.1170.04016.31
5.4.120.0930.04016.27
5.4.110.0770.05316.41
5.4.100.0830.04716.41
5.4.90.0770.05316.52
5.4.80.0530.06316.67
5.4.70.0630.05716.48
5.4.60.0770.06016.29
5.4.50.0630.05716.40
5.4.40.0630.07016.42
5.4.30.0670.04716.45
5.4.20.0130.05316.43
5.4.10.0170.04316.39
5.4.00.0730.04715.92
5.3.290.0730.06014.59
5.3.280.0670.04714.82
5.3.270.0430.09014.66
5.3.260.0300.05714.69
5.3.250.0130.04714.47
5.3.240.0130.06014.50
5.3.230.0730.05014.75
5.3.220.0600.05314.62
5.3.210.0700.05714.62
5.3.200.0700.05014.65
5.3.190.0830.05014.54
5.3.180.0700.04714.62
5.3.170.0700.04714.58
5.3.160.0700.04714.56
5.3.150.0700.04714.65
5.3.140.0630.05014.55
5.3.130.0600.05714.55
5.3.120.0730.04714.57
5.3.110.0600.06314.46
5.3.100.0870.04714.01
5.3.90.0830.05013.88
5.3.80.0800.06713.93
5.3.70.0770.05314.07
5.3.60.0770.05314.11
5.3.50.0770.06013.86
5.3.40.0700.04713.88
5.3.30.0670.06713.99
5.3.20.0770.06313.73
5.3.10.0770.04013.69
5.3.00.0800.05713.57
5.2.170.0730.04011.38
5.2.160.0670.05011.16
5.2.150.0830.04011.16
5.2.140.0700.04311.05
5.2.130.0730.04011.07
5.2.120.0670.05311.06
5.2.110.0730.05011.00
5.2.100.0570.04311.19
5.2.90.0630.04011.11
5.2.80.0700.04311.11
5.2.70.0800.04010.96
5.2.60.0570.05011.14
5.2.50.0570.04311.05
5.2.40.0300.04710.95
5.2.30.0600.04010.84
5.2.20.0400.05310.86
5.2.10.0570.05710.77
5.2.00.0470.04310.73
5.1.60.0430.03310.15
5.1.50.0470.05010.08
5.1.40.0430.0539.98
5.1.30.0470.03710.35
5.1.20.0470.05710.26
5.1.10.0130.04010.12
5.1.00.0000.0439.96
5.0.50.0000.0378.45
5.0.40.0030.0338.57
5.0.30.0000.0478.21
5.0.20.0070.0238.10
5.0.10.0370.0178.16
5.0.00.0270.0438.19
4.4.90.0270.0205.89
4.4.80.0230.0235.86
4.4.70.0270.0205.84
4.4.60.0300.0175.75
4.4.50.0230.0235.77
4.4.40.0230.0375.86
4.4.30.0230.0235.86
4.4.20.0300.0205.81
4.4.10.0300.0205.91
4.4.00.0300.0405.79
4.3.110.0270.0205.83
4.3.100.0230.0235.76
4.3.90.0300.0275.77
4.3.80.0330.0375.66
4.3.70.0300.0235.66
4.3.60.0330.0235.77
4.3.50.0270.0235.75
4.3.40.0270.0305.70
4.3.30.0130.0204.47
4.3.20.0100.0234.41
4.3.10.0170.0204.45
4.3.00.0100.0337.00

preferences:
45.12 ms | 401 KiB | 5 Q