3v4l.org

run code in 300+ PHP versions simultaneously
<?php class P { static $a=9; function __get($var) { return self::$var; } function __isset($var) { } } var_dump(isset(P::$az));

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)
8.3.60.0070.01016.59
8.3.50.0090.00722.00
8.3.40.0120.00318.55
8.3.30.0100.00319.17
8.3.20.0070.00020.16
8.3.10.0000.00823.53
8.3.00.0080.00020.94
8.2.180.0070.01416.35
8.2.170.0070.00722.96
8.2.160.0090.00620.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0100.01019.36
8.2.110.0070.00420.24
8.2.100.0060.00617.78
8.2.90.0050.00319.22
8.2.80.0000.00817.97
8.2.70.0040.00417.38
8.2.60.0000.01117.80
8.2.50.0000.01118.07
8.2.40.0080.00019.82
8.2.30.0000.00818.09
8.2.20.0000.00717.54
8.2.10.0040.00417.86
8.2.00.0040.00417.52
8.1.280.0170.00325.92
8.1.270.0040.00423.83
8.1.260.0030.00526.35
8.1.250.0020.00528.09
8.1.240.0050.00523.92
8.1.230.0040.00817.42
8.1.220.0040.00417.74
8.1.210.0050.00518.77
8.1.200.0040.00417.23
8.1.190.0000.00817.11
8.1.180.0040.00418.10
8.1.170.0040.00418.46
8.1.160.0000.00722.05
8.1.150.0070.00018.62
8.1.140.0040.00417.38
8.1.130.0070.00019.58
8.1.120.0030.00717.41
8.1.110.0080.00017.36
8.1.100.0040.00417.39
8.1.90.0000.00717.45
8.1.80.0080.00017.36
8.1.70.0030.00317.28
8.1.60.0060.00317.55
8.1.50.0060.00317.42
8.1.40.0000.01017.46
8.1.30.0040.00417.48
8.1.20.0040.00417.60
8.1.10.0000.00717.46
8.1.00.0000.00717.48
8.0.300.0040.00418.77
8.0.290.0090.00016.63
8.0.280.0030.00318.31
8.0.270.0020.00517.23
8.0.260.0030.00317.20
8.0.250.0020.00516.89
8.0.240.0030.00316.82
8.0.230.0030.00316.77
8.0.220.0000.00616.72
8.0.210.0000.00816.85
8.0.200.0000.00716.77
8.0.190.0000.00716.80
8.0.180.0000.00716.86
8.0.170.0000.00816.83
8.0.160.0000.00716.88
8.0.150.0040.00416.81
8.0.140.0040.00416.77
8.0.130.0050.00013.34
8.0.120.0060.00316.77
8.0.110.0030.00616.73
8.0.100.0030.00416.89
8.0.90.0040.00416.69
8.0.80.0030.01916.78
8.0.70.0000.00816.88
8.0.60.0000.00716.74
8.0.50.0030.00416.80
8.0.30.0090.01017.08
8.0.20.0090.01017.40
8.0.10.0040.00416.94
8.0.00.0050.01216.80
7.4.330.0020.00215.05
7.4.320.0000.00616.45
7.4.300.0030.00316.53
7.4.290.0030.00316.55
7.4.280.0040.00416.53
7.4.270.0000.00716.54
7.4.260.0000.00716.50
7.4.250.0000.00816.35
7.4.240.0030.00316.50
7.4.230.0030.00316.34
7.4.220.0000.01816.46
7.4.210.0030.01616.47
7.4.200.0040.00416.56
7.4.160.0110.00916.51
7.4.150.0110.02017.40
7.4.140.0090.00917.86
7.4.130.0120.00816.35
7.4.120.0100.00616.36
7.4.110.0160.00616.28
7.4.100.0090.01316.27
7.4.90.0060.01216.37
7.4.80.0070.01419.39
7.4.70.0040.01216.52
7.4.60.0110.00516.46
7.4.50.0000.00516.11
7.4.40.0100.01016.23
7.4.30.0130.00316.47
7.4.00.0090.00314.75
7.3.330.0030.00313.10
7.3.320.0020.00213.18
7.3.310.0040.00416.21
7.3.300.0040.00416.14
7.3.290.0040.01116.25
7.3.280.0090.00916.25
7.3.270.0080.01717.40
7.3.260.0060.01316.49
7.3.250.0050.01116.37
7.3.240.0070.01116.21
7.3.230.0110.00616.43
7.3.210.0130.00916.52
7.3.200.0150.00619.39
7.3.190.0160.00216.37
7.3.180.0070.00716.54
7.3.170.0090.00616.27
7.3.160.0030.01316.26
7.3.120.0070.01014.79
7.2.330.0100.01016.50
7.2.320.0100.00716.48
7.2.310.0090.01416.60
7.2.300.0050.01116.29
7.2.290.0050.01116.28
7.1.100.1720.00012.11
7.1.70.0030.00517.08
7.1.60.0090.01219.70
7.1.50.0030.02016.83
7.1.00.0070.07322.58
7.0.200.0030.00716.75
7.0.140.0030.07322.21
7.0.100.0300.08319.95
7.0.90.0470.06719.93
7.0.80.0400.06319.94
7.0.70.0470.06719.88
7.0.60.0370.05019.93
7.0.50.0270.07320.25
7.0.40.0130.07720.06
7.0.30.0000.08720.09
7.0.20.0030.08720.09
7.0.10.0100.08020.10
7.0.00.0100.08320.06
5.6.280.0070.07021.03
5.6.250.0030.08720.65
5.6.240.0130.07720.63
5.6.230.0070.04020.65
5.6.220.0230.06320.63
5.6.210.0200.06720.53
5.6.200.0100.08021.08
5.6.190.0030.09021.08
5.6.180.0030.07021.00
5.6.170.0030.08020.92
5.6.160.0130.08021.04
5.6.150.0130.07020.94
5.6.140.0100.07320.95
5.6.130.0070.07320.97
5.6.120.0030.08721.07
5.6.110.0070.08721.04
5.6.100.0100.08021.00
5.6.90.0130.08021.05
5.6.80.0070.07020.42
5.6.70.0030.09020.39
5.6.60.0070.07320.47
5.6.50.0070.07720.46
5.6.40.0070.08320.42
5.6.30.0030.08320.26
5.6.20.0070.08020.33
5.6.10.0070.08020.36
5.6.00.0200.06020.25
5.5.380.0130.05320.31
5.5.370.0030.08320.26
5.5.360.0100.08020.35
5.5.350.0000.07320.41
5.5.340.0070.07720.83
5.5.330.0130.08020.78
5.5.320.0070.07720.86
5.5.310.0030.07020.85
5.5.300.0070.08020.55
5.5.290.0070.08020.75
5.5.280.0030.08020.87
5.5.270.0170.07720.76
5.5.260.0200.06320.85
5.5.250.0070.08720.63
5.5.240.0130.07320.19
5.5.230.0170.06720.22
5.5.220.0100.08020.24
5.5.210.0100.07720.16
5.5.200.0000.08320.25
5.5.190.0130.06320.06
5.5.180.0070.08020.23
5.5.160.0030.08020.21
5.5.150.0030.08320.23
5.5.140.0100.07320.25
5.5.130.0100.07320.07
5.5.120.0130.07320.17
5.5.110.0070.04720.14
5.5.100.0170.07020.10
5.5.90.0230.05019.97
5.5.80.0100.06020.12
5.5.70.0170.07020.03
5.5.60.0070.07720.06
5.5.50.0100.06020.10
5.5.40.0100.06320.11
5.5.30.0100.07719.98
5.5.20.0100.06720.01
5.5.10.0030.09020.04
5.5.00.0130.06719.98
5.4.450.0270.05019.25
5.4.440.0100.07019.46
5.4.430.0030.07719.20
5.4.420.0100.07319.35
5.4.410.0070.08019.14
5.4.400.0100.07019.05
5.4.390.0070.04718.88
5.4.380.0200.06719.21
5.4.370.0070.05018.90
5.4.360.0030.07319.09
5.4.350.0230.06319.16
5.4.340.0070.07319.04
5.4.320.0100.07318.90
5.4.310.0200.05319.13
5.4.300.0070.07019.14
5.4.290.0000.08019.13
5.4.280.0170.06719.21
5.4.270.0130.06718.89
5.4.260.0100.07019.14
5.4.250.0030.06318.88
5.4.240.0000.08319.02
5.4.230.0070.07319.20
5.4.220.0070.07019.13
5.4.210.0070.08719.03
5.4.200.0130.06318.88
5.4.190.0170.05319.22
5.4.180.0070.06318.87
5.4.170.0030.07019.18
5.4.160.0000.08319.18
5.4.150.0100.07319.14
5.4.140.0070.07716.29
5.4.130.0000.06716.35
5.4.120.0070.07016.38
5.4.110.0000.05716.39
5.4.100.0030.04016.33
5.4.90.0000.06716.36
5.4.80.0100.06316.50
5.4.70.0170.05716.42
5.4.60.0070.07716.41
5.4.50.0100.07016.41
5.4.40.0070.05316.39
5.4.30.0070.05716.44
5.4.20.0100.06716.36
5.4.10.0200.06016.33
5.4.00.0030.07315.86
5.3.290.0100.07714.66
5.3.280.0070.08014.66
5.3.270.0100.07714.72
5.3.260.0070.07714.54
5.3.250.0100.06714.53
5.3.240.0070.07314.58
5.3.230.0030.05714.70
5.3.220.0000.07314.56
5.3.210.0070.04014.59
5.3.200.0070.04014.59
5.3.190.0130.04014.54
5.3.180.0030.07014.62
5.3.170.0030.07314.50
5.3.160.0070.08014.67
5.3.150.0070.07314.66
5.3.140.0170.06014.65
5.3.130.0030.07014.57
5.3.120.0000.07314.64
5.3.110.0170.06314.64
5.3.100.0130.05714.18
5.3.90.0030.04714.04
5.3.80.0130.06714.16
5.3.70.0100.06314.09
5.3.60.0170.05014.09
5.3.50.0100.03714.05
5.3.40.0100.07713.93
5.3.30.0030.03713.83
5.3.20.0070.07313.68
5.3.10.0170.06013.71
5.3.00.0070.07713.70
5.2.170.0030.06011.09
5.2.160.0070.05011.07
5.2.150.0000.05011.09
5.2.140.0070.05711.14
5.2.130.0070.05011.16
5.2.120.0100.02711.19
5.2.110.0070.03711.09
5.2.100.0130.05311.25
5.2.90.0070.04011.11
5.2.80.0170.04711.23
5.2.70.0100.02711.01
5.2.60.0100.05311.05
5.2.50.0030.06010.94
5.2.40.0000.03711.05
5.2.30.0100.04711.06
5.2.20.0100.05311.03
5.2.10.0070.05710.81
5.2.00.0070.06010.75
5.1.60.0130.04710.00
5.1.50.0000.05310.03
5.1.40.0030.05010.07
5.1.30.0030.04010.33
5.1.20.0000.03710.51
5.1.10.0070.05710.11
5.1.00.0070.0509.91
5.0.50.0030.0438.64
5.0.40.0030.0238.42
5.0.30.0000.0578.26
5.0.20.0000.0438.29
5.0.10.0070.0408.26
5.0.00.0000.0578.26
4.4.90.0000.0338.26
4.4.80.0030.0338.26
4.4.70.0000.0208.26
4.4.60.0030.0238.26
4.4.50.0000.0238.26
4.4.40.0070.0538.26
4.4.30.0000.0378.26
4.4.20.0100.0238.26
4.4.10.0030.0338.26
4.4.00.0000.0538.26
4.3.110.0030.0138.26
4.3.100.0070.0308.26
4.3.90.0000.0208.26
4.3.80.0000.0478.26
4.3.70.0030.0178.26
4.3.60.0030.0338.26
4.3.50.0000.0338.26
4.3.40.0000.0578.26
4.3.30.0000.0378.26
4.3.20.0000.0338.26
4.3.10.0000.0238.26
4.3.00.0000.0338.26

preferences:
41.23 ms | 401 KiB | 5 Q