3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = null; var_dump(isset($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)
8.4.120.0080.01122.51
8.4.110.0120.00818.69
8.4.100.0090.00817.53
8.4.90.0120.00917.64
8.4.80.0040.00517.50
8.4.70.0040.00517.43
8.4.60.0110.00820.67
8.4.50.0130.00818.49
8.4.40.0130.00818.30
8.4.30.0170.00517.44
8.4.20.0100.00617.44
8.4.10.0120.00417.52
8.3.250.0060.00218.84
8.3.240.0120.00816.42
8.3.230.0100.00916.57
8.3.220.0090.00917.29
8.3.210.0110.01016.41
8.3.200.0050.00416.36
8.3.190.0150.00316.68
8.3.180.0100.00417.36
8.3.170.0110.00816.66
8.3.160.0160.00517.42
8.3.150.0130.00717.72
8.3.140.0090.00516.71
8.3.130.0170.00717.06
8.3.120.0230.00417.90
8.3.110.0200.00616.52
8.3.100.0160.00420.27
8.3.90.0130.00620.89
8.3.80.0160.00618.29
8.3.70.0180.00618.28
8.3.60.0190.00518.27
8.3.50.0150.00519.77
8.3.40.0180.00719.03
8.3.30.0190.00519.43
8.3.20.0140.00620.10
8.3.10.0130.00520.42
8.3.00.0110.00620.01
8.2.290.0100.00920.51
8.2.280.0080.00617.39
8.2.270.0090.00416.44
8.2.260.0120.00617.61
8.2.250.0190.00316.40
8.2.240.0160.00516.69
8.2.230.0180.00417.96
8.2.220.0210.00418.89
8.2.210.0160.00420.91
8.2.200.0160.00618.35
8.2.190.0190.00618.41
8.2.180.0180.00818.25
8.2.170.0220.00519.08
8.2.160.0210.00620.35
8.2.150.0170.00620.59
8.2.140.0160.00820.58
8.2.130.0150.00820.81
8.2.120.0210.00519.65
8.2.110.0140.00820.07
8.2.100.0190.00519.29
8.2.90.0170.00719.44
8.2.80.0180.00519.32
8.2.70.0170.00719.20
8.2.60.0190.00519.21
8.2.50.0190.00519.30
8.2.40.0160.00719.56
8.2.30.0180.00519.43
8.2.20.0200.00419.15
8.2.10.0170.00519.05
8.2.00.0150.00719.04
8.1.330.0100.00918.23
8.1.320.0140.00516.20
8.1.310.0140.00616.27
8.1.300.0180.00815.97
8.1.290.0170.00518.69
8.1.280.0200.00519.70
8.1.270.0160.00520.82
8.1.260.0160.00521.08
8.1.250.0150.00621.40
8.1.240.0150.00719.60
8.1.230.0160.00619.17
8.1.220.0180.00219.19
8.1.210.0160.00619.23
8.1.200.0140.00819.04
8.1.190.0190.00418.98
8.1.180.0160.00619.09
8.1.170.0180.00419.16
8.1.160.0150.00819.22
8.1.150.0160.00719.24
8.1.140.0150.00618.90
8.1.130.0140.00518.81
8.1.120.0120.00518.57
8.1.110.0120.00718.78
8.1.100.0120.00618.85
8.1.90.0120.00418.60
8.1.80.0120.00618.62
8.1.70.0100.00718.51
8.1.60.0130.00518.43
8.1.50.0120.00618.37
8.1.40.0130.00518.36
8.1.30.0130.00418.36
8.1.20.0140.00618.39
8.1.10.0130.00618.22
8.1.00.0130.00618.16
8.0.300.0150.00418.91
8.0.290.0170.00318.70
8.0.280.0160.00818.87
8.0.270.0150.00518.64
8.0.260.0140.00618.24
8.0.250.0130.00618.25
8.0.240.0140.00518.23
8.0.230.0140.00518.21
8.0.220.0150.00418.06
8.0.210.0160.00418.05
8.0.200.0140.00518.22
8.0.190.0130.00617.90
8.0.180.0130.00517.93
8.0.170.0130.00617.90
8.0.160.0130.00517.82
8.0.150.0150.00417.81
8.0.140.0150.00417.81
8.0.130.0140.00417.57
8.0.120.0120.00617.57
8.0.110.0150.00517.53
8.0.100.0120.00717.53
8.0.90.0120.00617.42
8.0.80.0140.00517.51
8.0.70.0130.00417.50
8.0.60.0120.00517.47
8.0.50.0140.00417.46
8.0.30.0110.00617.36
8.0.20.0120.00517.43
8.0.10.0140.00417.54
8.0.00.0100.00717.48
7.4.330.0130.00417.58
7.4.320.0180.00518.03
7.4.300.0160.00618.06
7.4.290.0140.00717.76
7.4.280.0150.00617.64
7.4.270.0140.00517.57
7.4.260.0160.00417.55
7.4.250.0130.00617.28
7.4.240.0140.00517.23
7.4.230.0140.00517.28
7.4.220.0130.00617.20
7.4.210.0140.00417.17
7.4.200.0100.00717.27
7.4.190.0160.00317.33
7.4.180.0130.00517.34
7.4.160.0130.00617.14
7.4.150.0130.00517.20
7.4.140.0130.00417.23
7.4.130.0120.00517.01
7.4.120.0130.00517.02
7.4.110.0120.00617.06
7.4.100.0130.00617.09
7.4.90.0140.00517.08
7.4.80.0130.00617.15
7.4.70.0130.00617.02
7.4.60.0140.00616.97
7.4.50.0130.00616.90
7.4.40.0130.00716.92
7.4.30.0130.00616.99
7.4.20.0140.00516.94
7.4.10.0140.00616.96
7.4.00.0130.00616.75
7.3.330.0170.00417.18
7.3.320.0150.00616.93
7.3.310.0160.00417.07
7.3.300.0150.00517.14
7.3.290.0130.00617.04
7.3.280.0140.00716.95
7.3.270.0150.00617.02
7.3.260.0140.00517.01
7.3.250.0130.00617.00
7.3.240.0140.00516.94
7.3.230.0140.00616.90
7.3.220.0150.00516.94
7.3.210.0150.00516.91
7.3.200.0140.00616.85
7.3.190.0150.00516.86
7.3.180.0140.00716.81
7.3.170.0150.00516.87
7.3.160.0140.00716.83
7.3.150.0140.00616.87
7.3.140.0160.00516.85
7.3.130.0140.00716.79
7.3.120.0140.00616.70
7.3.110.0150.00716.69
7.3.100.0140.00616.61
7.3.90.0140.00616.77
7.3.80.0150.00516.60
7.3.70.0140.00616.67
7.3.60.0140.00616.64
7.3.50.0150.00616.64
7.3.40.0130.00616.63
7.3.30.0160.00516.61
7.3.20.0170.00517.46
7.3.10.0150.00617.38
7.3.00.0160.00617.15
7.2.340.0150.00617.03
7.2.330.0160.00617.01
7.2.320.0170.00516.99
7.2.310.0150.00716.95
7.2.300.0170.00516.97
7.2.290.0170.00616.95
7.2.280.0150.00616.95
7.2.270.0170.00616.97
7.2.260.0150.00617.00
7.2.250.0140.00716.92
7.2.240.0150.00616.82
7.2.230.0150.00616.81
7.2.220.0140.00716.75
7.2.210.0150.00716.63
7.2.200.0160.00616.79
7.2.190.0150.00716.72
7.2.180.0140.00716.74
7.2.170.0150.00616.77
7.2.160.0150.00716.87
7.2.150.0160.00717.61
7.2.140.0180.00617.65
7.2.130.0180.00717.45
7.2.120.0180.00517.47
7.2.110.0140.00817.46
7.2.100.0170.00617.47
7.2.90.0180.00617.43
7.2.80.0190.00617.37
7.2.70.0170.00717.35
7.2.60.0180.00717.35
7.2.50.0210.00517.31
7.2.40.0230.00717.41
7.2.30.0220.00617.40
7.2.20.0200.00717.45
7.2.10.0210.00617.49
7.2.00.0220.00717.52
7.1.330.0160.00616.95
7.1.320.0160.00616.83
7.1.310.0160.00516.73
7.1.300.0180.00416.72
7.1.290.0150.00616.71
7.1.280.0170.00516.68
7.1.270.0150.00616.76
7.1.260.0130.00716.71
7.1.250.0170.00616.44
7.1.240.0160.00616.48
7.1.230.0190.00616.52
7.1.220.0190.00516.47
7.1.210.0160.00516.49
7.1.200.0170.00616.38
7.1.190.0180.00616.38
7.1.180.0160.00616.38
7.1.170.0210.00516.34
7.1.160.0230.00516.43
7.1.150.0200.00616.38
7.1.140.0200.00616.46
7.1.130.0200.00616.49
7.1.120.0210.00616.45
7.1.110.0190.00716.42
7.1.100.0200.00616.43
7.1.90.0260.00616.37
7.1.80.0240.00716.40
7.1.70.0190.00616.24
7.1.60.0190.00718.02
7.1.50.0210.00618.04
7.1.40.0220.00617.98
7.1.30.0220.00617.99
7.1.20.0210.00717.95
7.1.10.0180.00716.26
7.1.00.0170.00616.30
7.0.330.0170.00616.19
7.0.320.0160.00616.18
7.0.310.0190.00616.09
7.0.300.0180.00616.11
7.0.290.0220.00616.14
7.0.280.0150.00616.20
7.0.270.0230.00616.19
7.0.260.0190.00616.19
7.0.250.0200.00616.22
7.0.240.0210.00616.24
7.0.230.0210.00616.23
7.0.220.0200.00616.21
7.0.210.0170.00616.18
7.0.200.0200.00516.12
7.0.190.0210.00516.11
7.0.180.0200.00616.13
7.0.170.0260.00516.12
7.0.160.0190.00716.09
7.0.150.0190.00516.09
7.0.140.0180.00616.08
7.0.130.0200.00616.15
7.0.120.0190.00616.13
7.0.110.0170.00616.12
7.0.100.0160.00616.06
7.0.90.0160.00616.05
7.0.80.0170.00616.06
7.0.70.0160.00616.01
7.0.60.0160.00716.05
7.0.50.0200.00616.03
7.0.40.0160.00716.05
7.0.30.0160.00616.04
7.0.20.0170.00716.03
7.0.10.0200.00616.03
7.0.00.0170.00715.99
5.6.400.0140.00616.32
5.6.390.0130.00716.33
5.6.380.0140.00616.11
5.6.370.0140.00716.11
5.6.360.0120.00716.13
5.6.350.0130.00616.14
5.6.340.0130.00616.13
5.6.330.0130.00616.09
5.6.320.0140.00616.10
5.6.310.0130.00716.10
5.6.300.0140.01016.26
5.6.290.0140.00916.36
5.6.280.0140.00916.33
5.6.270.0130.01016.32
5.6.260.0130.01116.36
5.6.250.0140.00916.32
5.6.240.0130.01016.35
5.6.230.0130.01016.37
5.6.220.0120.01116.36
5.6.210.0120.01116.37
5.6.200.0130.00916.38
5.6.190.0130.01116.40
5.6.180.0130.01016.40
5.6.170.0140.01016.34
5.6.160.0130.01016.38
5.6.150.0130.01016.35
5.6.140.0140.00916.36
5.6.130.0140.01016.34
5.6.120.0140.01016.34
5.6.110.0140.01016.30
5.6.100.0140.01016.33
5.6.90.0140.01116.31
5.6.80.0130.00916.26
5.6.70.0140.00916.30
5.6.60.0130.01016.27
5.6.50.0140.01016.25
5.6.40.0130.01116.24
5.6.30.0130.01016.26
5.6.20.0130.01016.26
5.6.10.0130.01016.27
5.6.00.0150.00916.24
5.5.380.0130.01015.74
5.5.370.0130.00915.73
5.5.360.0140.00915.64
5.5.350.0140.00815.68
5.5.340.0130.00915.71
5.5.330.0140.00915.71
5.5.320.0130.00915.69
5.5.310.0130.01015.65
5.5.300.0130.00915.67
5.5.290.0140.01015.69
5.5.280.0140.00915.70
5.5.270.0150.00915.72
5.5.260.0120.01115.65
5.5.250.0130.01115.69
5.5.240.0130.00915.65
5.5.230.0120.01015.64
5.5.220.0130.00915.68
5.5.210.0120.01015.63
5.5.200.0130.01015.67
5.5.190.0130.00915.63
5.5.180.0130.01015.65
5.5.170.0130.00615.67
5.5.160.0140.00915.61
5.5.150.0120.01015.56
5.5.140.0130.01015.56
5.5.130.0120.01015.56
5.5.120.0140.00915.60
5.5.110.0140.00915.59
5.5.100.0120.01015.68
5.5.90.0120.01015.62
5.5.80.0130.00915.63
5.5.70.0130.00915.63
5.5.60.0130.00815.62
5.5.50.0130.00915.64
5.5.40.0120.00915.64
5.5.30.0130.00915.65
5.5.20.0130.01115.62
5.5.10.0130.01015.59
5.5.00.0130.00915.64
5.4.450.0120.00714.24
5.4.440.0110.00914.24
5.4.430.0110.00914.21
5.4.420.0100.00914.24
5.4.410.0110.00914.21
5.4.400.0110.00814.21
5.4.390.0130.00714.20
5.4.380.0110.00814.19
5.4.370.0110.00814.18
5.4.360.0110.00814.21
5.4.350.0110.00714.18
5.4.340.0110.00814.21
5.4.330.0120.00413.98
5.4.320.0110.00814.18
5.4.310.0110.00814.21
5.4.300.0110.00914.20
5.4.290.0120.00714.20
5.4.280.0120.00714.21
5.4.270.0120.00714.22
5.4.260.0110.00814.19
5.4.250.0110.00814.19
5.4.240.0110.00814.23
5.4.230.0110.00814.17
5.4.220.0110.00814.12
5.4.210.0110.00814.11
5.4.200.0110.00714.11
5.4.190.0120.00814.14
5.4.180.0110.00814.13
5.4.170.0110.00814.15
5.4.160.0110.00814.14
5.4.150.0100.00914.14
5.4.140.0120.00814.02
5.4.130.0100.00814.01
5.4.120.0100.00814.02
5.4.110.0100.00814.02
5.4.100.0100.00814.02
5.4.90.0100.00814.02
5.4.80.0090.00914.05
5.4.70.0110.00714.03
5.4.60.0100.00714.05
5.4.50.0090.00913.99
5.4.40.0090.00814.04
5.4.30.0090.00914.03
5.4.20.0100.00714.06
5.4.10.0100.00814.04
5.4.00.0100.00814.00

preferences:
30.51 ms | 403 KiB | 5 Q