3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; echo empty($a['b']['c']);

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)
8.3.40.0100.01018.71
8.3.30.0090.00618.52
8.3.20.0040.00420.36
8.3.10.0080.00021.04
8.3.00.0080.00023.52
8.2.170.0140.00722.96
8.2.160.0130.00720.35
8.2.150.0030.00524.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00220.96
8.2.110.0100.00020.43
8.2.100.0060.00617.84
8.2.90.0000.00819.30
8.2.80.0050.00319.24
8.2.70.0030.00517.48
8.2.60.0040.00417.79
8.2.50.0040.00418.07
8.2.40.0000.00718.34
8.2.30.0040.00419.39
8.2.20.0000.00817.81
8.2.10.0000.00817.54
8.2.00.0040.00417.53
8.1.270.0000.00723.99
8.1.260.0000.00726.35
8.1.250.0020.00528.09
8.1.240.0060.00322.66
8.1.230.0050.00620.91
8.1.220.0040.00418.77
8.1.210.0040.00418.91
8.1.200.0090.00017.13
8.1.190.0040.00417.40
8.1.180.0000.00818.10
8.1.170.0060.00318.35
8.1.160.0000.00718.78
8.1.150.0000.00718.56
8.1.140.0040.00417.32
8.1.130.0000.00717.82
8.1.120.0000.00717.28
8.1.110.0000.00817.35
8.1.100.0000.00717.41
8.1.90.0000.00717.28
8.1.80.0020.00517.34
8.1.70.0070.00017.34
8.1.60.0060.00317.54
8.1.50.0050.00217.44
8.1.40.0050.00317.43
8.1.30.0040.00417.42
8.1.20.0030.00617.59
8.1.10.0080.00017.59
8.1.00.0050.00317.54
8.0.300.0000.00719.88
8.0.290.0030.00317.18
8.0.280.0000.00718.44
8.0.270.0030.00317.12
8.0.260.0000.00716.80
8.0.250.0070.00016.86
8.0.240.0040.00416.84
8.0.230.0030.00516.87
8.0.220.0030.00316.71
8.0.210.0000.00716.68
8.0.200.0060.00316.89
8.0.190.0000.00716.88
8.0.180.0020.00516.85
8.0.170.0000.00716.72
8.0.160.0070.00016.71
8.0.150.0070.00016.82
8.0.140.0070.00016.67
8.0.130.0060.00013.27
8.0.120.0080.00016.86
8.0.110.0040.00416.80
8.0.100.0040.00416.67
8.0.90.0000.00716.67
8.0.80.0150.00616.80
8.0.70.0030.00316.83
8.0.60.0040.00416.69
8.0.50.0000.00716.85
8.0.30.0120.00717.10
8.0.20.0130.00517.40
8.0.10.0070.00016.82
8.0.00.0140.00516.87
7.4.330.0050.00016.77
7.4.320.0000.00616.43
7.4.300.0040.00416.42
7.4.290.0070.00016.42
7.4.280.0070.00316.34
7.4.270.0030.00316.52
7.4.260.0000.00513.21
7.4.250.0060.00316.35
7.4.240.0040.00416.34
7.4.230.0030.00316.29
7.4.220.0180.00916.36
7.4.210.0080.00716.44
7.4.200.0070.00016.43
7.4.190.0070.00016.59
7.4.160.0080.00816.40
7.4.150.0030.01717.40
7.4.140.0100.00917.86
7.4.130.0090.00916.50
7.4.120.0110.00616.47
7.4.110.0100.00716.39
7.4.100.0150.00316.41
7.4.90.0120.00616.50
7.4.80.0070.01019.39
7.4.70.0120.00616.44
7.4.60.0030.01416.66
7.4.50.0030.00616.46
7.4.40.0100.00322.77
7.4.30.0150.00416.59
7.4.00.0110.00614.89
7.3.330.0050.00013.09
7.3.320.0050.00013.10
7.3.310.0000.00716.19
7.3.300.0040.00416.32
7.3.290.0060.00916.21
7.3.280.0090.00916.25
7.3.270.0250.01717.40
7.3.260.0040.01418.24
7.3.250.0120.00816.45
7.3.240.0210.00316.21
7.3.230.0110.00616.56
7.3.210.0090.00916.60
7.3.200.0200.00019.39
7.3.190.0060.01416.16
7.3.180.0040.01116.54
7.3.170.0100.00616.27
7.3.160.0060.00916.31
7.3.120.0050.01114.94
7.3.110.0040.01414.98
7.3.100.0090.00614.96
7.3.90.0060.00614.86
7.3.80.0060.00914.51
7.3.70.0060.00914.91
7.3.60.0120.00314.86
7.3.50.0000.01414.92
7.3.40.0070.00714.84
7.3.30.0070.00414.91
7.3.20.0060.00916.82
7.3.10.0060.01216.73
7.3.00.0070.00316.69
7.2.330.0140.00316.62
7.2.320.0180.00916.16
7.2.310.0070.01016.43
7.2.300.0060.01216.58
7.2.290.0100.00616.58
7.2.250.0100.00914.83
7.2.240.0000.01814.77
7.2.230.0130.00314.89
7.2.220.0040.00714.80
7.2.210.0100.00314.84
7.2.200.0140.00314.75
7.2.190.0090.01215.02
7.2.180.0070.01014.94
7.2.170.0030.01314.83
7.2.60.0170.01016.75
7.1.330.0030.01315.84
7.1.320.0000.01515.53
7.1.310.0030.01015.55
7.1.300.0100.00715.82
7.1.290.0030.01015.83
7.1.280.0100.00715.75
7.1.270.0060.00315.69
7.1.260.0040.01415.73
7.1.200.0040.00715.72
7.1.70.0040.00717.13
7.1.60.0040.01819.08
7.1.50.0230.00016.79
7.1.00.0030.03322.51
7.0.200.0040.00216.82
7.0.140.0100.06722.08
7.0.100.0170.04719.99
7.0.90.0000.06719.95
7.0.80.0100.05019.92
7.0.70.0130.04319.97
7.0.60.0000.04319.90
7.0.50.0170.03320.23
7.0.40.0130.03320.08
7.0.30.0030.04320.17
7.0.20.0000.05020.05
7.0.10.0030.03320.08
7.0.00.0030.04320.09
5.6.250.0070.04320.81
5.6.240.0030.04020.60
5.6.230.0100.03720.55
5.6.220.0030.04020.58
5.6.210.0030.04020.73
5.6.200.0030.04721.04
5.6.190.0030.03721.04
5.6.180.0000.04321.07
5.6.170.0070.04021.01
5.6.160.0200.03321.11
5.6.150.0200.05021.08
5.6.140.0170.03021.09
5.6.130.0100.03020.94
5.6.120.0030.03721.00
5.6.110.0070.04021.09
5.6.100.0070.03321.05
5.6.90.0000.04021.05
5.6.80.0100.08020.43
5.6.70.0170.03720.39
5.6.60.0030.04020.36
5.6.50.0100.07720.39
5.6.40.0030.08020.30
5.6.30.0030.06720.37
5.6.20.0100.07720.28
5.6.10.0100.04720.39
5.6.00.0030.07320.33
5.5.380.0070.05020.53
5.5.370.0030.04320.41
5.5.360.0030.04020.33
5.5.350.0100.03720.42
5.5.340.0070.04020.82
5.5.330.0100.02720.89
5.5.320.0030.04320.77
5.5.310.0030.04320.86
5.5.300.0070.03320.82
5.5.290.0030.08020.85
5.5.280.0070.03320.89
5.5.270.0100.03320.84
5.5.260.0030.03320.87
5.5.250.0070.07020.73
5.5.240.0000.04720.11
5.5.230.0070.07720.11
5.5.220.0030.09320.30
5.5.210.0030.07320.25
5.5.200.0070.07020.27
5.5.190.0130.07720.16
5.5.180.0130.09720.26
5.5.160.0130.04320.07
5.5.150.0130.07320.22
5.5.140.0100.04320.13
5.5.130.0070.07020.26
5.5.120.0030.07720.13
5.5.110.0130.05320.09
5.5.100.0100.05320.04
5.5.90.0030.06720.00
5.5.80.0070.04720.06
5.5.70.0200.06720.14
5.5.60.0070.08020.07
5.5.50.0100.04020.09
5.5.40.0100.03020.04
5.5.30.0130.03019.91
5.5.20.0070.03720.04
5.5.10.0070.07020.10
5.5.00.0030.05320.02
5.4.450.0070.03019.29
5.4.440.0030.04719.30
5.4.430.0070.03719.46
5.4.420.0070.03319.34
5.4.410.0070.03019.23
5.4.400.0070.04019.05
5.4.390.0000.08019.11
5.4.380.0030.07318.79
5.4.370.0070.06718.90
5.4.360.0130.07318.92
5.4.350.0130.07019.23
5.4.340.0070.05319.02
5.4.320.0100.06018.98
5.4.310.0100.06718.90
5.4.300.0000.05019.09
5.4.290.0100.07719.07
5.4.280.0030.05019.00
5.4.270.0100.07318.94
5.4.260.0100.03319.03
5.4.250.0130.03018.96
5.4.240.0000.07018.96
5.4.230.0170.04719.07
5.4.220.0000.04719.04
5.4.210.0100.06319.02
5.4.200.0030.03719.12
5.4.190.0000.04718.95
5.4.180.0030.05019.04
5.4.170.0130.07018.79
5.4.160.0070.05019.07
5.4.150.0070.06018.76
5.4.140.0170.06716.35
5.4.130.0000.05316.34
5.4.120.0070.03716.26
5.4.110.0100.06716.23
5.4.100.0100.07016.21
5.4.90.0070.07316.30
5.4.80.0100.07316.39
5.4.70.0000.06016.43
5.4.60.0070.06316.23
5.4.50.0100.06016.17
5.4.40.0130.06716.36
5.4.30.0170.06716.27
5.4.20.0030.07016.14
5.4.10.0030.05016.17
5.4.00.0070.03015.68
5.3.290.0100.06014.61
5.3.280.0070.07714.45
5.3.270.0100.06714.57
5.3.260.0030.07714.46
5.3.250.0030.05014.51
5.3.240.0030.05314.58
5.3.230.0070.07714.59
5.3.220.0130.03014.50
5.3.210.0070.05014.56
5.3.200.0000.05314.52
5.3.190.0070.05314.50
5.3.180.0030.07014.55
5.3.170.0070.07014.38
5.3.160.0130.03314.56
5.3.150.0030.07014.41
5.3.140.0070.06314.54
5.3.130.0100.07714.53
5.3.120.0000.04014.36
5.3.110.0000.06714.54
5.3.100.0100.06314.02
5.3.90.0030.03313.95
5.3.80.0030.05713.79
5.3.70.0100.07014.00
5.3.60.0070.03013.96
5.3.50.0030.06313.79
5.3.40.0070.07313.89
5.3.30.0070.07313.90
5.3.20.0070.07013.44
5.3.10.0070.06313.61
5.3.00.0070.04013.59
5.2.170.0100.02311.55
5.2.160.0030.06311.55
5.2.150.0030.06311.55
5.2.140.0030.06311.55
5.2.130.0070.02711.55
5.2.120.0130.05311.55
5.2.110.0030.05311.55
5.2.100.0030.04311.55
5.2.90.0070.04011.55
5.2.80.0030.04711.55
5.2.70.0000.06711.55
5.2.60.0100.05311.55
5.2.50.0070.03311.55
5.2.40.0030.03711.55
5.2.30.0100.04311.55
5.2.20.0070.03711.55
5.2.10.0070.05311.55
5.2.00.0000.05711.55
5.1.60.0070.03711.55
5.1.50.0030.02311.55
5.1.40.0070.03711.55
5.1.30.0070.04711.55
5.1.20.0030.05011.55
5.1.10.0030.05311.55
5.1.00.0100.03011.55
5.0.50.0100.03311.55
5.0.40.0070.03311.55
5.0.30.0000.06011.55
5.0.20.0030.03711.55
5.0.10.0000.04011.55
5.0.00.0030.05311.55
4.4.90.0170.02311.55
4.4.80.0030.03311.55
4.4.70.0030.03011.55
4.4.60.0000.02011.55
4.4.50.0000.02711.55
4.4.40.0030.04711.55
4.4.30.0030.03011.55
4.4.20.0000.02011.55
4.4.10.0000.01711.55
4.4.00.0000.04011.55
4.3.110.0000.03711.55
4.3.100.0000.02711.55
4.3.90.0030.03311.55
4.3.80.0000.04311.55
4.3.70.0100.01711.55
4.3.60.0000.03311.55
4.3.50.0000.03711.55
4.3.40.0070.03011.55
4.3.30.0000.03311.55
4.3.20.0030.01711.55
4.3.10.0000.03011.55
4.3.00.0000.03011.55

preferences:
49.62 ms | 400 KiB | 5 Q