3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = false; var_dump(isset($var));

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)
8.4.130.0120.00718.67
8.4.120.0160.00620.75
8.4.110.0170.00517.99
8.4.100.0160.00617.32
8.4.90.0170.00619.94
8.4.80.0170.00617.45
8.4.70.0160.00617.40
8.4.60.0170.00618.79
8.4.50.0130.00618.76
8.4.40.0170.00618.47
8.4.30.0160.00917.47
8.4.20.0170.00817.30
8.4.10.0120.01017.18
8.3.260.0120.01016.38
8.3.250.0150.00517.55
8.3.240.0130.00416.63
8.3.230.0150.00716.20
8.3.220.0150.00817.48
8.3.210.0140.00417.30
8.3.200.0110.00516.55
8.3.190.0140.00417.57
8.3.180.0130.00317.38
8.3.170.0160.00618.34
8.3.160.0160.00716.60
8.3.150.0150.00716.23
8.3.140.0160.00717.54
8.3.130.0130.00417.30
8.3.120.0130.00317.54
8.3.110.0180.00418.71
8.3.100.0160.00320.09
8.3.90.0160.00321.52
8.3.80.0130.00522.21
8.3.70.0310.00521.23
8.3.60.0220.00721.87
8.3.50.0140.00622.83
8.3.40.0200.00722.23
8.3.30.0150.01022.10
8.3.20.0180.00422.18
8.3.10.0190.00323.04
8.3.00.0170.00522.51
8.2.290.0130.00818.25
8.2.280.0110.00417.35
8.2.270.0120.00816.45
8.2.260.0110.00416.68
8.2.250.0130.00216.48
8.2.240.0120.00717.80
8.2.230.0110.00519.50
8.2.220.0130.00226.80
8.2.210.0150.00521.60
8.2.200.0170.00422.00
8.2.190.0190.00825.74
8.2.180.0230.00422.41
8.2.170.0200.00623.68
8.2.160.0220.00422.93
8.2.150.0190.00524.15
8.2.140.0220.00324.26
8.2.130.0210.00324.72
8.2.120.0170.00423.74
8.2.110.0130.00422.86
8.2.100.0140.00421.99
8.2.90.0080.00722.48
8.2.80.0130.00522.04
8.2.70.0120.00421.80
8.2.60.0160.00622.01
8.2.50.0190.00422.00
8.2.40.0170.00622.06
8.2.30.0130.01022.48
8.2.20.0180.00421.87
8.2.10.0190.00421.89
8.2.00.0170.00621.92
8.1.330.0110.00319.05
8.1.320.0110.00317.01
8.1.310.0160.00116.11
8.1.300.0120.00217.00
8.1.290.0200.00425.85
8.1.280.0190.00324.25
8.1.270.0210.00423.99
8.1.260.0160.00324.75
8.1.250.0140.00225.37
8.1.240.0140.00624.61
8.1.230.0110.01022.97
8.1.220.0120.00322.18
8.1.210.0150.00622.23
8.1.200.0130.00421.64
8.1.190.0130.00321.73
8.1.180.0180.00222.59
8.1.170.0170.00422.13
8.1.160.0190.00322.20
8.1.150.0150.00722.09
8.1.140.0170.00421.70
8.1.130.0160.00421.91
8.1.120.0170.00521.79
8.1.110.0150.00421.74
8.1.100.0160.00421.69
8.1.90.0080.00420.03
8.1.80.0090.00419.92
8.1.70.0100.00520.34
8.1.60.0110.00520.48
8.1.50.0160.00419.55
8.1.40.0110.00419.63
8.1.30.0100.00619.62
8.1.20.0120.00719.66
8.1.10.0110.00719.61
8.1.00.0160.00119.49
8.0.300.0060.00822.35
8.0.290.0090.00521.42
8.0.280.0110.00422.43
8.0.270.0120.00321.77
8.0.260.0100.00521.38
8.0.250.0170.00321.42
8.0.240.0120.00421.96
8.0.230.0110.00421.46
8.0.220.0130.00620.16
8.0.210.0120.00719.54
8.0.200.0140.00419.54
8.0.190.0140.00519.56
8.0.180.0170.00419.03
8.0.170.0130.00419.08
8.0.160.0140.00319.05
8.0.150.0130.00319.01
8.0.140.0090.00618.99
8.0.130.0110.00518.43
8.0.120.0090.00619.01
8.0.110.0100.00619.00
8.0.100.0090.00619.02
8.0.90.0130.00419.01
8.0.80.0140.00619.05
8.0.70.0140.00219.02
8.0.60.0100.00519.02
8.0.50.0140.00518.98
8.0.30.0140.00718.47
8.0.20.0130.00818.68
8.0.10.0130.00819.10
8.0.00.0110.00818.53
7.4.330.0200.00619.47
7.4.320.0180.00221.18
7.4.300.0110.00419.27
7.4.290.0150.00418.75
7.4.280.0110.00718.69
7.4.270.0140.00318.76
7.4.260.0140.00518.15
7.4.250.0110.00418.71
7.4.240.0110.00418.76
7.4.230.0110.00418.73
7.4.220.0110.00518.78
7.4.210.0100.00717.99
7.4.200.0100.00418.76
7.4.190.0120.00318.80
7.4.180.0150.00519.26
7.4.160.0120.00618.44
7.4.150.0120.00718.57
7.4.140.0100.00918.50
7.4.130.0110.00718.11
7.4.120.0120.00418.04
7.4.110.0140.00418.33
7.4.100.0110.00517.96
7.4.90.0110.00817.96
7.4.80.0140.00618.24
7.4.70.0150.00617.69
7.4.60.0130.00817.69
7.4.50.0140.00517.61
7.4.40.0130.00718.31
7.4.30.0140.00617.70
7.4.20.0120.00717.85
7.4.10.0100.00717.87
7.4.00.0080.00817.57
7.3.330.0120.00318.00
7.3.320.0120.00417.90
7.3.310.0140.00418.56
7.3.300.0150.00418.45
7.3.290.0150.00518.47
7.3.280.0110.00717.74
7.3.270.0130.00518.35
7.3.260.0150.00518.39
7.3.250.0120.00718.00
7.3.240.0150.00718.18
7.3.230.0160.00518.19
7.3.220.0140.00917.85
7.3.210.0130.00817.70
7.3.200.0160.00617.66
7.3.190.0160.00617.59
7.3.180.0150.00717.46
7.3.170.0160.00617.53
7.3.160.0180.00417.48
7.3.150.0140.00717.63
7.3.140.0100.01017.68
7.3.130.0130.00617.65
7.3.120.0110.00617.39
7.3.110.0120.00917.58
7.3.100.0130.00617.63
7.3.90.0150.00617.84
7.3.80.0120.00817.70
7.3.70.0130.00617.76
7.3.60.0110.00817.76
7.3.50.0150.00617.76
7.3.40.0150.00617.70
7.3.30.0130.00717.75
7.3.20.0140.00918.60
7.3.10.0160.00618.58
7.3.00.0150.00618.61
7.2.340.0160.00418.56
7.2.330.0150.00617.88
7.2.320.0170.00517.81
7.2.310.0130.00917.66
7.2.300.0140.00717.66
7.2.290.0150.00817.69
7.2.280.0190.00617.81
7.2.270.0170.00617.84
7.2.260.0180.00717.81
7.2.250.0190.00517.79
7.2.240.0150.00917.83
7.2.230.0140.00717.81
7.2.220.0140.00717.78
7.2.210.0120.01117.83
7.2.200.0180.00517.85
7.2.190.0170.00717.86
7.2.180.0160.00717.84
7.2.170.0160.00717.91
7.2.160.0150.00817.93
7.2.150.0150.00918.70
7.2.140.0190.00518.79
7.2.130.0160.00718.88
7.2.120.0180.00618.58
7.2.110.0230.00818.58
7.2.100.0160.00818.55
7.2.90.0150.00818.47
7.2.80.0130.00818.50
7.2.70.0130.00618.63
7.2.60.0150.00718.41
7.2.50.0170.00718.58
7.2.40.0140.00818.55
7.2.30.0160.00718.60
7.2.20.0170.00618.57
7.2.10.0200.00818.58
7.2.00.0150.00818.65
7.1.330.0170.00517.85
7.1.320.0140.00917.84
7.1.310.0140.00717.89
7.1.300.0150.00717.82
7.1.290.0140.00717.85
7.1.280.0180.00617.85
7.1.270.0160.00617.80
7.1.260.0230.00617.84
7.1.250.0140.00617.82
7.1.240.0130.00617.56
7.1.230.0130.00717.61
7.1.220.0150.00717.51
7.1.210.0150.00517.63
7.1.200.0130.00617.33
7.1.190.0140.00617.50
7.1.180.0150.00717.60
7.1.170.0130.00717.56
7.1.160.0110.00917.58
7.1.150.0140.00517.55
7.1.140.0170.00517.57
7.1.130.0150.00817.49
7.1.120.0120.00817.58
7.1.110.0170.00717.53
7.1.100.0120.00717.61
7.1.90.0160.00717.56
7.1.80.0150.00617.60
7.1.70.0130.00617.39
7.1.60.0130.00617.47
7.1.50.0170.00617.44
7.1.40.0130.00717.55
7.1.30.0130.00617.54
7.1.20.0170.00617.54
7.1.10.0150.00617.51
7.1.00.0230.00717.30
7.0.330.0180.00517.52
7.0.320.0160.00717.24
7.0.310.0190.00617.30
7.0.300.0160.00717.28
7.0.290.0170.00717.28
7.0.280.0150.00617.26
7.0.270.0170.00617.33
7.0.260.0180.00517.29
7.0.250.0200.00617.26
7.0.240.0160.00717.39
7.0.230.0210.00617.40
7.0.220.0180.00617.34
7.0.210.0150.00717.30
7.0.200.0140.00717.33
7.0.190.0150.00717.33
7.0.180.0160.00617.34
7.0.170.0150.00617.36
7.0.160.0150.00517.25
7.0.150.0140.00717.37
7.0.140.0240.00717.08
7.0.130.0120.00717.30
7.0.120.0190.00517.08
7.0.110.0240.00617.07
7.0.100.0200.00617.06
7.0.90.0260.00717.00
7.0.80.0200.00617.06
7.0.70.0150.00716.96
7.0.60.0210.00617.04
7.0.50.0190.00617.01
7.0.40.0150.00616.88
7.0.30.0180.00716.90
7.0.20.0190.00616.82
7.0.10.0220.00716.84
7.0.00.0160.00816.83
5.6.400.0150.00717.31
5.6.390.0150.00717.26
5.6.380.0150.00717.01
5.6.370.0160.00717.01
5.6.360.0170.00717.00
5.6.350.0150.00816.97
5.6.340.0160.00516.89
5.6.330.0140.00817.02
5.6.320.0160.00816.95
5.6.310.0160.00717.03
5.6.300.0150.01417.25
5.6.290.0130.00716.97
5.6.280.0120.01217.35
5.6.270.0140.00816.99
5.6.260.0160.01117.29
5.6.250.0140.01217.31
5.6.240.0140.01317.40
5.6.230.0170.01217.45
5.6.220.0150.01317.44
5.6.210.0140.01417.37
5.6.200.0150.01517.47
5.6.190.0150.01317.42
5.6.180.0150.01217.42
5.6.170.0150.01417.37
5.6.160.0100.01817.41
5.6.150.0150.01417.41
5.6.140.0150.01217.32
5.6.130.0140.01317.37
5.6.120.0150.01517.36
5.6.110.0170.01017.30
5.6.100.0150.01117.33
5.6.90.0150.01317.27
5.6.80.0120.01517.20
5.6.70.0160.01117.33
5.6.60.0140.01217.27
5.6.50.0140.01217.22
5.6.40.0120.01217.26
5.6.30.0120.01317.23
5.6.20.0150.01317.24
5.6.10.0160.01217.24
5.6.00.0150.01117.19
5.5.380.0150.01016.71
5.5.370.0150.01416.73
5.5.360.0160.01216.63
5.5.350.0140.01516.68
5.5.340.0150.01016.63
5.5.330.0120.01316.72
5.5.320.0130.01116.67
5.5.310.0130.01216.65
5.5.300.0120.01316.67
5.5.290.0140.01216.64
5.5.280.0130.01416.68
5.5.270.0150.01316.67
5.5.260.0160.01216.63
5.5.250.0130.01416.66
5.5.240.0150.01016.68
5.5.230.0140.01416.63
5.5.220.0120.01216.68
5.5.210.0130.01116.66
5.5.200.0140.01216.64
5.5.190.0120.01316.62
5.5.180.0110.01416.59
5.5.170.0130.00716.89
5.5.160.0120.01316.56
5.5.150.0140.01116.56
5.5.140.0150.01116.52
5.5.130.0140.01416.61
5.5.120.0120.01516.54
5.5.110.0150.01016.54
5.5.100.0150.01216.64
5.5.90.0140.01316.68
5.5.80.0140.01116.67
5.5.70.0120.01316.57
5.5.60.0140.01216.60
5.5.50.0130.01016.60
5.5.40.0150.01116.59
5.5.30.0120.01216.62
5.5.20.0140.01216.66
5.5.10.0140.01116.59
5.5.00.0150.01516.55
5.4.450.0140.00914.76
5.4.440.0120.01114.79
5.4.430.0130.01114.76
5.4.420.0100.01414.74
5.4.410.0120.01014.69
5.4.400.0130.00914.68
5.4.390.0120.00814.71
5.4.380.0130.00814.71
5.4.370.0130.01214.66
5.4.360.0130.01114.68
5.4.350.0120.01014.69
5.4.340.0110.01114.72
5.4.330.0110.00614.27
5.4.320.0100.01214.70
5.4.310.0120.01014.69
5.4.300.0120.01214.76
5.4.290.0090.01214.67
5.4.280.0110.01114.70
5.4.270.0110.01114.65
5.4.260.0120.01214.70
5.4.250.0120.01214.67
5.4.240.0120.01014.64
5.4.230.0110.01314.61
5.4.220.0110.01314.61
5.4.210.0110.01314.65
5.4.200.0120.01014.61
5.4.190.0130.01214.57
5.4.180.0120.01114.59
5.4.170.0120.01014.66
5.4.160.0140.00714.63
5.4.150.0100.01114.64
5.4.140.0110.01114.48
5.4.130.0110.01014.47
5.4.120.0130.01114.45
5.4.110.0120.01214.46
5.4.100.0120.01114.46
5.4.90.0110.01114.45
5.4.80.0100.01114.48
5.4.70.0110.01014.50
5.4.60.0110.01014.46
5.4.50.0100.00914.42
5.4.40.0120.01014.51
5.4.30.0120.00914.51
5.4.20.0090.00914.48
5.4.10.0100.00914.49
5.4.00.0110.00814.34
5.3.290.0130.00814.67
5.3.280.0110.01014.65
5.3.270.0130.00914.70
5.3.260.0100.01214.65
5.3.250.0130.00914.67
5.3.240.0110.01114.58
5.3.230.0100.01314.63
5.3.220.0120.01214.52
5.3.210.0120.01014.55
5.3.200.0100.01214.50
5.3.190.0110.00914.57
5.3.180.0120.01014.63
5.3.170.0110.01014.71
5.3.160.0110.01014.63
5.3.150.0130.00814.63
5.3.140.0080.01114.67
5.3.130.0110.01014.59
5.3.120.0090.01114.61
5.3.110.0110.01114.63
5.3.100.0110.01114.54
5.3.90.0110.00914.58
5.3.80.0090.01014.45
5.3.70.0110.01114.50
5.3.60.0110.01014.59
5.3.50.0070.01314.51
5.3.40.0130.01014.42
5.3.30.0100.01114.50
5.3.20.0120.00914.43
5.3.10.0090.01314.39
5.3.00.0130.00714.35

preferences:
106.65 ms | 403 KiB | 5 Q