3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); var_dump(empty(a)); var_dump(isset($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)
8.3.60.0060.00816.61
8.3.50.0060.01221.81
8.3.40.0110.00418.71
8.3.30.0100.00718.45
8.3.20.0040.00420.16
8.3.10.0040.00421.86
8.3.00.0000.00821.76
8.2.180.0100.01018.29
8.2.170.0090.00922.96
8.2.160.0030.01722.26
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0040.00421.18
8.2.120.0040.00426.35
8.2.110.0000.00820.81
8.2.100.0110.00017.93
8.2.90.0040.00419.23
8.2.80.0060.00317.97
8.2.70.0000.00917.38
8.2.60.0000.00817.93
8.2.50.0040.00418.09
8.2.40.0000.00822.22
8.2.30.0050.00219.35
8.2.20.0050.00319.58
8.2.10.0000.00818.08
8.2.00.0040.00418.10
8.1.280.0070.01125.92
8.1.270.0080.00022.06
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0090.01222.61
8.1.230.0120.00019.16
8.1.220.0070.00017.77
8.1.210.0060.00318.77
8.1.200.0000.01217.35
8.1.190.0030.00617.35
8.1.180.0040.00418.10
8.1.170.0040.00418.50
8.1.160.0070.00020.78
8.1.150.0070.00020.61
8.1.140.0060.00319.48
8.1.130.0030.00317.56
8.1.120.0000.00717.53
8.1.110.0000.00717.33
8.1.100.0040.00417.49
8.1.90.0040.00417.35
8.1.80.0000.00717.45
8.1.70.0030.00317.27
8.1.60.0000.00817.47
8.1.50.0020.00517.51
8.1.40.0040.00417.44
8.1.30.0030.00617.49
8.1.20.0080.00017.61
8.1.10.0000.00817.49
8.1.00.0080.00017.47
8.0.300.0040.00418.77
8.0.290.0050.00316.75
8.0.280.0070.00018.44
8.0.270.0000.00817.24
8.0.260.0030.00317.22
8.0.250.0030.00316.91
8.0.240.0060.00016.96
8.0.230.0040.00416.98
8.0.220.0000.00816.93
8.0.210.0030.00316.96
8.0.200.0030.00316.99
8.0.190.0030.00616.87
8.0.180.0030.00516.94
8.0.170.0040.00416.90
8.0.160.0000.00816.98
8.0.150.0070.00016.93
8.0.140.0050.00216.80
8.0.130.0000.00513.37
8.0.120.0000.00716.86
8.0.110.0040.00416.92
8.0.100.0000.00716.81
8.0.90.0070.00016.79
8.0.80.0030.01116.99
8.0.70.0050.00316.88
8.0.60.0000.00716.84
8.0.50.0040.00416.90
8.0.30.0080.00817.23
8.0.20.0060.01417.40
8.0.10.0000.00816.98
8.0.00.0090.00916.70
7.4.330.0020.00216.84
7.4.320.0030.00316.43
7.4.300.0040.00416.59
7.4.290.0070.00016.60
7.4.280.0040.00416.54
7.4.270.0030.00316.54
7.4.260.0070.00016.55
7.4.250.0000.00716.45
7.4.240.0040.00416.50
7.4.230.0030.00316.38
7.4.220.0070.01116.60
7.4.210.0100.00616.59
7.4.200.0070.00016.68
7.4.160.0120.00816.52
7.4.150.0080.00817.40
7.4.140.0140.00517.86
7.4.130.0070.01216.48
7.4.120.0100.00816.39
7.4.110.0090.00916.61
7.4.100.0080.00816.46
7.4.90.0100.00716.42
7.4.80.0110.00619.39
7.4.70.0080.00816.67
7.4.60.0110.00616.61
7.4.50.0000.01616.57
7.4.40.0080.00816.57
7.4.30.0100.01316.59
7.4.00.0000.01415.04
7.3.330.0050.00013.06
7.3.320.0030.00313.13
7.3.310.0000.00716.28
7.3.300.0030.00316.11
7.3.290.0040.00416.14
7.3.280.0070.00816.20
7.3.270.0040.01317.40
7.3.260.0160.01016.45
7.3.250.0070.01016.24
7.3.240.0130.00516.47
7.3.230.0140.00316.50
7.3.210.0170.00016.22
7.3.200.0080.00819.39
7.3.190.0100.00916.51
7.3.180.0080.00316.29
7.3.170.0060.01216.33
7.3.160.0000.01516.59
7.2.330.0090.00916.67
7.2.320.0110.00716.52
7.2.310.0060.01116.76
7.2.300.0070.01116.44
7.2.290.0140.00716.35
7.2.60.0110.00316.44
7.2.00.0030.01219.48
7.1.200.0090.00015.79
7.1.100.0000.01117.92
7.1.70.0000.00717.04
7.1.60.0070.01719.40
7.1.50.0030.00916.93
7.1.00.0070.06722.34
7.0.200.0000.00816.66
7.0.60.0030.08021.80
7.0.50.0070.07317.80
7.0.40.0100.07320.07
7.0.30.0270.04020.21
7.0.20.0070.05020.04
7.0.10.0100.07720.19
7.0.00.0030.07320.01
5.6.210.0070.09020.55
5.6.200.0170.06318.12
5.6.190.0030.04320.45
5.6.180.0170.04720.41
5.6.170.0370.07320.35
5.6.160.0100.05020.32
5.6.150.0070.04318.16
5.6.140.0070.08018.11
5.6.130.0130.07318.08
5.6.120.0100.07321.07
5.6.110.0030.07021.13
5.6.100.0200.07021.10
5.6.90.0170.06720.98
5.6.80.0030.03720.35
5.5.350.1830.03020.36
5.5.340.0030.06018.01
5.5.330.0000.04720.20
5.5.320.0170.04720.24
5.5.310.0170.03720.17
5.5.300.0000.04317.98
5.5.290.0200.07017.95
5.5.280.0130.04720.86
5.5.270.0070.03720.75
5.5.260.0070.06020.76
5.5.250.0130.08020.79
5.5.240.0070.03720.15

preferences:
52.6 ms | 401 KiB | 5 Q