3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a($depth = 0) { //return last backtrace call. If backtrace bigger then 3, return third call. if($depth === 1000) { $tmp = debug_backtrace(false); return; } return a(++$depth, str_repeat("a", 1000)); } var_dump(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)
8.3.60.0110.00420.23
8.3.50.0120.00922.92
8.3.40.0200.00020.44
8.3.30.0100.00721.14
8.3.20.0040.00422.08
8.3.10.0040.00424.14
8.3.00.0080.00024.33
8.2.180.0140.00418.25
8.2.170.0120.00422.96
8.2.160.0100.00722.22
8.2.150.0070.00324.18
8.2.140.0070.00424.66
8.2.130.0050.00326.16
8.2.120.0090.00021.33
8.2.110.0000.00924.10
8.2.100.0100.00321.55
8.2.90.0060.00321.27
8.2.80.0040.00419.93
8.2.70.0000.00919.50
8.2.60.0060.00319.80
8.2.50.0090.00019.50
8.2.40.0040.00420.22
8.2.30.0000.00819.95
8.2.20.0060.00319.48
8.2.10.0000.00821.21
8.2.00.0000.00819.56
8.1.280.0110.00725.92
8.1.270.0040.00424.32
8.1.260.0100.00026.35
8.1.250.0030.00628.09
8.1.240.0070.00325.91
8.1.230.0060.00621.22
8.1.220.0000.00919.78
8.1.210.0100.00019.36
8.1.200.0030.00719.35
8.1.190.0130.00019.42
8.1.180.0090.00020.85
8.1.170.0000.00920.64
8.1.160.0060.00323.94
8.1.150.0040.00420.42
8.1.140.0040.00419.35
8.1.130.0050.00319.64
8.1.120.0040.00419.34
8.1.110.0000.00819.29
8.1.100.0000.00819.20
8.1.90.0000.00819.21
8.1.80.0080.00019.20
8.1.70.0000.00919.29
8.1.60.0030.00619.52
8.1.50.0040.00419.39
8.1.40.0030.00619.40
8.1.30.0090.00019.51
8.1.20.0000.00919.57
8.1.10.0040.00419.29
8.1.00.0060.00319.32
8.0.300.0000.00819.35
8.0.290.0060.00319.05
8.0.280.0050.00320.21
8.0.270.0030.00619.10
8.0.260.0070.00318.54
8.0.250.0040.00418.75
8.0.240.0000.00818.75
8.0.230.0000.00818.70
8.0.220.0080.00018.65
8.0.210.0030.00618.57
8.0.200.0030.00318.72
8.0.190.0030.00618.61
8.0.180.0040.00418.63
8.0.170.0030.00618.65
8.0.160.0050.00318.60
8.0.150.0050.00518.63
8.0.140.0000.00918.57
8.0.130.0060.00015.07
8.0.120.0030.00618.49
8.0.110.0080.00018.64
8.0.100.0040.00418.44
8.0.90.0000.00818.63
8.0.80.0150.00318.58
8.0.70.0040.00418.63
8.0.60.0060.00318.42
8.0.50.0030.00618.60
8.0.30.0140.00618.68
8.0.20.0210.00818.70
8.0.10.0030.00618.75
8.0.00.0130.01818.55
7.4.330.0030.00317.04
7.4.320.0030.00318.30
7.4.300.0030.00318.33
7.4.290.0040.00418.26
7.4.280.0030.00618.25
7.4.270.0050.00218.40
7.4.260.0030.00518.29
7.4.250.0000.00918.21
7.4.240.0000.00918.25
7.4.230.0030.00518.09
7.4.220.0110.01018.17
7.4.210.0080.00918.26
7.4.200.0030.00518.09
7.4.190.0050.00318.45
7.4.160.0150.00918.11
7.4.150.0040.01718.36
7.4.140.0120.00718.28
7.4.130.0080.01118.20
7.4.120.0090.01018.37
7.4.110.0130.00718.13
7.4.100.0110.00918.25
7.4.90.0140.01118.29
7.4.80.0060.01619.39
7.4.70.0090.01018.25
7.4.60.0030.01718.25
7.4.50.0040.00418.27
7.4.40.0030.01422.77
7.4.30.0110.00918.13
7.4.00.0040.01116.71
7.3.330.0000.00615.25
7.3.320.0000.00615.10
7.3.310.0050.00318.07
7.3.300.0030.00618.16
7.3.290.0150.00818.13
7.3.280.0070.01118.13
7.3.270.0130.00618.21
7.3.260.0160.00318.36
7.3.250.0110.00818.33
7.3.240.0070.01518.35
7.3.230.0130.01318.13
7.3.210.0080.01118.11
7.3.200.0160.00319.39
7.3.190.0150.01118.23
7.3.180.0060.01218.51
7.3.170.0090.00918.20
7.3.160.0190.00318.11
7.3.120.0140.00316.72
7.3.10.0150.01018.36
7.3.00.0150.00918.24
7.2.330.0130.00618.42
7.2.320.0130.00918.55
7.2.310.0100.01018.48
7.2.300.0090.01018.41
7.2.290.0120.00918.38
7.2.130.0040.01518.78
7.2.120.0100.01318.57
7.2.110.0040.01218.78
7.2.100.0140.01418.70
7.2.90.0190.00918.63
7.2.80.0220.00718.69
7.2.70.0080.01218.52
7.2.60.0100.01018.99
7.2.50.0180.00418.82
7.2.40.0090.00618.71
7.2.30.0100.00518.73
7.2.20.0120.00618.71
7.2.10.0100.01318.60
7.2.00.0090.00920.04
7.1.250.0340.00317.69
7.1.100.0000.01219.95
7.1.70.0070.01018.95
7.1.60.0070.01819.82
7.1.50.0200.01036.65
7.1.00.0070.07324.36
7.0.200.0000.00818.90
7.0.140.0070.07324.10
7.0.60.0170.07722.32
7.0.50.0100.04719.82
7.0.40.0070.09320.18
7.0.30.0470.06720.19
7.0.20.0270.04020.19
7.0.10.0270.06320.11
7.0.00.0070.04320.16
5.6.280.0030.07723.47
5.6.210.0170.07323.34
5.6.200.0100.08720.73
5.6.190.0100.04022.98
5.6.180.3470.04323.04
5.6.170.0270.03723.01
5.6.160.0070.06022.90
5.6.150.0100.08320.57
5.6.140.0000.09020.72
5.6.130.0130.08320.69
5.6.120.0030.08723.57
5.6.110.0100.05723.61
5.6.100.0100.08323.55
5.6.90.0030.09023.57
5.6.80.0070.08722.87
5.6.70.0430.06323.08
5.5.350.0100.03722.91
5.5.340.0070.06720.54
5.5.330.0200.08022.84
5.5.320.0230.06722.77
5.5.310.0130.04322.70
5.5.300.0100.08020.54
5.5.290.0000.06020.54
5.5.280.0030.09023.42
5.5.270.0100.06723.44
5.5.260.0100.06323.34
5.5.250.0070.08023.37
5.5.240.0070.04722.85
5.4.450.0670.06021.96
5.4.440.0570.06721.97
5.4.430.0530.06022.08
5.4.420.0600.06321.98
5.4.410.0600.06321.89
5.4.400.0830.00021.07
5.4.390.0870.00021.13
5.4.380.0230.06321.03
5.4.370.0330.05021.32
5.4.360.0270.06021.32
5.4.350.0270.05321.07
5.4.340.0200.06021.30
5.4.320.0070.03915.08
5.4.310.0080.03715.07
5.4.300.0070.03615.07
5.4.290.0080.04315.07
5.4.280.0090.04214.97
5.4.270.0070.04114.97
5.4.260.0200.04721.16
5.4.250.0170.05321.41
5.4.240.0200.04321.40
5.4.230.0100.05321.35
5.4.220.0070.06021.17
5.4.210.0070.06021.43
5.4.200.0130.05321.43
5.4.190.0100.05721.27
5.4.180.0100.05721.45
5.4.170.0130.05721.47
5.4.160.0030.06321.41
5.4.150.0200.05021.26
5.4.140.0130.05319.07
5.4.130.0070.08018.93
5.4.120.0030.07319.07
5.4.110.0200.06719.13
5.4.100.0070.05318.96
5.4.90.0070.05318.90
5.4.80.0170.05718.88
5.4.70.0170.04718.82
5.4.60.0070.05319.03
5.4.50.0130.05319.07
5.4.40.0070.05718.93
5.4.30.0030.08019.03
5.4.20.0100.06719.03
5.4.10.0230.05319.02
5.4.00.0070.06018.43
5.3.290.0050.05015.27
5.3.280.0030.06316.97
5.3.270.0170.05017.07
5.3.260.0170.06017.09
5.3.250.0000.06316.84
5.3.240.0170.05017.11
5.3.230.0230.04016.91
5.3.220.0030.05716.95
5.3.210.0070.06016.97
5.3.200.0070.05717.06
5.3.190.0070.06716.95
5.3.180.0170.04717.05
5.3.170.0070.07317.13
5.3.160.0170.05017.09
5.3.150.0230.06317.11
5.3.140.0130.07316.95
5.3.130.0100.06317.07
5.3.120.0070.06016.96
5.3.110.0200.05717.02
5.3.100.0130.06016.26
5.3.90.0230.05316.25
5.3.80.0200.06316.38
5.3.70.0030.08016.46
5.3.60.0130.06316.47
5.3.50.0130.06716.27
5.3.40.0100.05016.39
5.3.30.0170.04316.04
5.3.20.0070.06716.00
5.3.10.0200.06316.43
5.3.00.0100.05316.05
5.2.170.0030.05714.06
5.2.160.0070.04714.38
5.2.150.0030.06714.00
5.2.140.0100.06014.11
5.2.130.0100.04713.85
5.2.120.0130.03313.89
5.2.110.0200.03314.53
5.2.100.0130.04313.84
5.2.90.0030.06713.95
5.2.80.0070.04313.87
5.2.70.0030.06714.42
5.2.60.0100.04014.00
5.2.50.0000.05013.79
5.2.40.0070.03712.48
5.2.30.0130.03713.14
5.2.20.0000.04712.61
5.2.10.0070.04012.52
5.2.00.0030.04312.27
5.1.60.0130.02711.98
5.1.50.0170.02312.16
5.1.40.0030.03711.96
5.1.30.0130.03012.46
5.1.20.0100.03312.54
5.1.10.0100.03312.24
5.1.00.0130.04712.33
5.0.50.0030.03310.88
5.0.40.0070.02710.83
5.0.30.0000.04710.32
5.0.20.0170.01710.46
5.0.10.0030.03010.36
5.0.00.0030.04310.36
4.4.90.0030.02310.63
4.4.80.0070.02010.51
4.4.70.0070.02010.40
4.4.60.0000.02710.47
4.4.50.0030.02710.47
4.4.40.0070.03710.56
4.4.30.0070.02010.51
4.4.20.0130.01310.53
4.4.10.0030.02310.55
4.4.00.0030.04310.60
4.3.110.0000.0308.61
4.3.100.0030.0238.66
4.3.90.0000.0238.59
4.3.80.0130.0338.59
4.3.70.0000.0278.63
4.3.60.0000.0278.53
4.3.50.0000.0278.64
4.3.40.0070.0308.43
4.3.30.0070.0207.18
4.3.20.0030.0279.25
4.3.10.0030.0207.13
4.3.00.0130.0239.32

preferences:
45.02 ms | 401 KiB | 5 Q