3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => null, 'b' => 5]; var_dump(empty($a['a'])); var_dump(empty($a['b']));

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)
8.4.120.0120.00617.62
8.4.110.0110.01018.55
8.4.100.0120.00818.63
8.4.90.0060.00320.44
8.4.80.0020.00618.70
8.4.70.0120.00718.86
8.4.60.0070.00220.74
8.4.50.0110.00318.77
8.4.40.0000.01018.43
8.4.30.0100.00620.43
8.4.20.0200.00022.19
8.4.10.0060.00322.59
8.3.250.0120.00718.27
8.3.240.0070.00816.56
8.3.230.0040.00416.67
8.3.220.0070.00418.76
8.3.210.0110.00716.72
8.3.200.0060.00316.49
8.3.190.0120.00616.92
8.3.180.0090.00519.13
8.3.170.0130.00618.24
8.3.160.0100.00717.05
8.3.150.0030.00517.24
8.3.140.0040.00418.96
8.3.130.0030.00618.48
8.3.120.0030.00620.72
8.3.110.0000.00916.27
8.3.100.0090.00616.60
8.3.90.0130.00618.30
8.3.80.0060.00319.36
8.3.70.0070.00716.58
8.3.60.0100.01018.43
8.3.50.0120.00824.50
8.3.40.0090.00618.71
8.3.30.0070.01018.64
8.3.20.0000.01424.18
8.3.10.0080.00024.66
8.3.00.0080.00026.16
8.2.290.0130.00622.24
8.2.280.0140.00818.34
8.2.270.0040.01118.34
8.2.260.0060.00316.55
8.2.250.0050.00316.50
8.2.240.0090.00017.42
8.2.230.0140.00720.94
8.2.220.0040.00424.06
8.2.210.0100.00726.77
8.2.200.0060.00316.63
8.2.190.0030.01016.58
8.2.180.0090.00925.92
8.2.170.0170.00318.96
8.2.160.0030.01022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00226.35
8.2.110.0090.00022.11
8.2.100.0120.00017.72
8.2.90.0060.00317.75
8.2.80.0000.00917.97
8.2.70.0040.00417.38
8.2.60.0040.00417.63
8.2.50.0040.00418.05
8.2.40.0030.00818.09
8.2.30.0030.00318.24
8.2.20.0040.00418.05
8.2.10.0030.00519.16
8.2.00.0040.00419.14
8.1.330.0100.00821.80
8.1.320.0130.00616.15
8.1.310.0030.00716.11
8.1.300.0100.01017.90
8.1.290.0060.00318.88
8.1.280.0160.00325.92
8.1.270.0040.00423.99
8.1.260.0000.00828.09
8.1.250.0090.00028.09
8.1.240.0060.00322.58
8.1.230.0030.00817.89
8.1.220.0030.00617.74
8.1.210.0050.00318.77
8.1.200.0050.00517.23
8.1.190.0060.00617.23
8.1.180.0030.00618.10
8.1.170.0000.00718.48
8.1.160.0000.00718.67
8.1.150.0020.00518.82
8.1.140.0000.00720.16
8.1.130.0000.00720.05
8.1.120.0040.00417.23
8.1.110.0060.00317.39
8.1.100.0000.00717.38
8.1.90.0000.00717.39
8.1.80.0030.00617.37
8.1.70.0000.00817.34
8.1.60.0080.00017.50
8.1.50.0000.00817.46
8.1.40.0030.00517.36
8.1.30.0040.00417.56
8.1.20.0080.00017.49
8.1.10.0030.00517.41
8.1.00.0070.00017.35
8.0.300.0040.00418.77
8.0.290.0000.00916.58
8.0.280.0070.00018.36
8.0.270.0080.00017.94
8.0.260.0060.00020.05
8.0.250.0050.00516.91
8.0.240.0070.00016.91
8.0.230.0000.00716.77
8.0.220.0000.00716.76
8.0.210.0030.00316.86
8.0.200.0000.00616.79
8.0.190.0070.00016.84
8.0.180.0000.00716.87
8.0.170.0000.00816.84
8.0.160.0000.00816.90
8.0.150.0000.00816.80
8.0.140.0000.00816.68
8.0.130.0030.00313.16
8.0.120.0050.00316.76
8.0.110.0040.00416.89
8.0.100.0070.00016.80
8.0.90.0050.00316.72
8.0.80.0110.00316.76
8.0.70.0050.00316.60
8.0.60.0000.00716.93
8.0.50.0040.00416.61
8.0.30.0180.00017.02
8.0.20.0090.01316.96
8.0.10.0000.00816.94
8.0.00.0140.00416.73
7.4.330.0050.00015.55
7.4.320.0060.00016.40
7.4.300.0000.00616.55
7.4.290.0030.00316.54
7.4.280.0000.00816.55
7.4.270.0030.00316.57
7.4.260.0060.00013.18
7.4.250.0030.00316.34
7.4.240.0030.00616.54
7.4.230.0000.00716.41
7.4.220.0020.00516.49
7.4.210.0090.00716.49
7.4.200.0000.00716.47
7.4.130.0110.00616.40
7.4.120.0130.00616.49
7.4.110.0110.01116.40
7.4.100.0110.00716.41
7.4.90.0060.01216.34
7.4.80.0140.00316.19
7.4.70.0070.01016.36
7.4.60.0130.00316.34
7.4.50.0140.00916.17
7.4.40.0050.01416.39
7.4.30.0130.00416.15
7.4.20.0110.00616.51
7.4.10.0140.00316.21
7.4.00.0130.00416.19
7.3.330.0000.00716.14
7.3.320.0030.00313.13
7.3.310.0070.00016.12
7.3.300.0040.00416.23
7.3.290.0070.01116.21
7.3.260.0100.01016.11
7.3.230.0060.01016.30
7.3.210.0080.01216.09
7.3.200.0060.01016.41
7.3.190.0100.00716.31
7.3.180.0110.00516.13
7.3.170.0170.00616.07
7.3.160.0080.00816.38
7.3.150.0040.01315.98
7.3.140.0170.00316.15
7.3.130.0060.01116.32
7.3.120.0120.00516.37
7.3.110.0050.01116.34
7.3.100.0120.00616.51
7.3.90.0110.00615.94
7.3.80.0130.00616.13
7.3.70.0120.00416.07
7.3.60.0170.00016.18
7.3.50.0100.01016.08
7.3.40.0200.00016.23
7.3.30.0160.00416.18
7.3.20.0100.00916.15
7.3.10.0140.00816.08
7.3.00.0140.00316.23
7.2.330.0090.01016.27
7.2.320.0030.01616.11
7.2.310.0040.01416.36
7.2.300.0180.00316.17
7.2.290.0130.00616.30
7.2.280.0090.00916.59
7.2.270.0140.00416.23
7.2.260.0110.00616.41
7.2.250.0130.00416.45
7.2.240.0130.00616.50
7.2.230.0030.01416.27
7.2.220.0180.00016.49
7.2.210.0110.00616.09
7.2.200.0070.01116.25
7.2.190.0090.01216.21
7.2.180.0030.01816.33
7.2.170.0030.01716.52
7.2.160.0030.01716.32
7.2.150.0160.00816.43
7.2.140.0180.00916.59
7.2.130.0070.01716.30
7.2.120.0090.01516.34
7.2.110.0090.01316.38
7.2.100.0150.00316.57
7.2.90.0070.01116.20
7.2.80.0090.00916.48
7.2.70.0090.01116.50
7.2.60.0120.00916.35
7.2.50.0120.00816.27
7.2.40.0070.01116.59
7.2.30.0060.01216.25
7.2.20.0200.00016.35
7.2.10.0110.00716.48
7.2.00.0040.01416.39

preferences:
30.41 ms | 403 KiB | 5 Q