3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [null => '000', 1 => '111' ]; var_dump($a[null]); $a[null] = 'null'; //var_dump($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)
8.3.60.0150.00316.50
8.3.50.0140.00416.61
8.3.40.0120.00418.70
8.3.30.0110.00318.67
8.3.20.0080.00018.54
8.3.10.0080.00021.83
8.3.00.0060.00317.93
8.2.180.0100.00716.75
8.2.170.0070.00722.96
8.2.160.0110.00419.13
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0050.00221.05
8.2.120.0030.00326.35
8.2.110.0080.00322.25
8.2.100.0040.00818.04
8.2.90.0030.00619.22
8.2.80.0040.00417.97
8.2.70.0030.00517.63
8.2.60.0000.00817.55
8.2.50.0000.00918.10
8.2.40.0040.00420.45
8.2.30.0070.00019.19
8.2.20.0040.00417.79
8.2.10.0030.00618.12
8.2.00.0000.00718.04
8.1.280.0030.01025.92
8.1.270.0030.00523.99
8.1.260.0000.00828.09
8.1.250.0070.00028.09
8.1.240.0000.01122.19
8.1.230.0000.01119.01
8.1.220.0080.00017.75
8.1.210.0080.00018.77
8.1.200.0040.00417.23
8.1.190.0030.00517.23
8.1.180.0060.00318.10
8.1.170.0030.00618.98
8.1.160.0000.00719.01
8.1.150.0040.00418.73
8.1.140.0040.00419.48
8.1.130.0000.00717.58
8.1.120.0000.00717.32
8.1.110.0000.00717.43
8.1.100.0050.00317.40
8.1.90.0050.00517.41
8.1.80.0040.00317.35
8.1.70.0040.00417.40
8.1.60.0060.00317.48
8.1.50.0030.00617.47
8.1.40.0040.00417.44
8.1.30.0050.00317.50
8.1.20.0080.00017.46
8.1.10.0060.00317.61
8.1.00.0030.00517.31
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.34
8.0.270.0060.00317.11
8.0.260.0030.00317.25
8.0.250.0000.00716.79
8.0.240.0040.00416.81
8.0.230.0000.00716.83
8.0.220.0060.00316.81
8.0.210.0000.00716.73
8.0.200.0060.00016.85
8.0.190.0030.00516.91
8.0.180.0000.00716.84
8.0.170.0000.00716.75
8.0.160.0040.00416.90
8.0.150.0050.00216.74
8.0.140.0080.00316.84
8.0.130.0000.00513.32
8.0.120.0040.00416.87
8.0.110.0050.00216.84
8.0.100.0070.00016.89
8.0.90.0000.00716.79
8.0.80.0120.00916.88
8.0.70.0070.00016.89
8.0.60.0000.00816.66
8.0.50.0070.00016.63
8.0.30.0070.01116.98
8.0.20.0150.00817.40
8.0.10.0030.00516.99
8.0.00.0120.00816.66
7.4.330.0020.00215.08
7.4.320.0070.00016.46
7.4.300.0030.00316.30
7.4.290.0030.00316.45
7.4.280.0030.00516.54
7.4.270.0030.00316.39
7.4.260.0040.00416.44
7.4.250.0000.00716.51
7.4.240.0070.00016.59
7.4.230.0080.00016.44
7.4.220.0060.01216.46
7.4.210.0070.01216.51
7.4.200.0040.00416.61
7.4.160.0130.00316.48
7.4.150.0060.01317.40
7.4.140.0100.00717.86
7.4.130.0050.01316.46
7.4.120.0070.01116.52
7.4.110.0100.01016.53
7.4.100.0100.00716.26
7.4.90.0120.00416.42
7.4.80.0130.00319.39
7.4.70.0070.01016.56
7.4.60.0040.01216.53
7.4.50.0070.01016.31
7.4.40.0060.01016.47
7.4.30.0090.00616.44
7.4.00.0070.01115.14
7.3.330.0050.00012.95
7.3.320.0030.00313.11
7.3.310.0000.00716.14
7.3.300.0030.00316.21
7.3.290.0070.00016.20
7.3.280.0110.00716.29
7.3.270.0150.00317.40
7.3.260.0150.00316.29
7.3.250.0150.00616.37
7.3.240.0090.00816.21
7.3.230.0190.00016.50
7.3.210.0030.01316.22
7.3.200.0130.00316.27
7.3.190.0090.00916.18
7.3.180.0110.01116.39
7.3.170.0130.00516.29
7.3.160.0090.00616.34
7.3.10.0060.00716.50
7.3.00.0060.00616.54
7.2.330.0090.00916.51
7.2.320.0070.01116.30
7.2.310.0120.00916.69
7.2.300.0090.01516.34
7.2.290.0080.00816.64
7.2.130.0050.00716.74
7.2.120.0000.01216.89
7.2.110.0050.01016.82
7.2.100.0070.00816.71
7.2.90.0040.01016.72
7.2.80.0060.00516.93
7.2.70.0060.00616.75
7.2.60.0050.00716.79
7.2.50.0060.00616.90
7.2.40.0050.00716.87
7.2.30.0080.00616.80
7.2.20.0050.00916.72
7.2.10.0090.00516.62
7.2.00.0050.00717.67
7.1.250.0060.00515.75
7.1.200.0040.01115.73
7.1.100.0050.00818.06
7.1.70.0060.00316.87
7.1.60.0130.01019.25
7.1.00.0030.07722.32
7.0.200.0000.01016.86
7.0.60.0030.08321.76
7.0.50.0330.04320.26
7.0.40.0230.05020.21
7.0.30.0270.05320.25
7.0.20.0170.06720.23
7.0.10.0170.06320.28
7.0.00.0200.06720.28
5.6.280.0070.06721.14
5.6.210.0130.06720.60
5.6.200.0200.06320.96
5.6.190.0270.05021.05
5.6.180.0170.06321.18
5.6.170.0270.05021.03
5.6.160.0230.05721.20
5.6.150.0130.06021.07
5.6.140.0330.07321.07
5.6.130.0270.06721.11
5.6.120.0370.07021.02
5.6.110.0170.07720.95
5.6.100.0170.07321.04
5.6.90.0270.06021.00
5.6.80.0200.06320.42
5.6.70.0100.06320.43
5.6.60.0070.06320.45
5.6.50.0130.06020.43
5.6.40.0100.06320.39
5.6.30.0230.05020.43
5.6.20.0300.04320.39
5.6.10.0170.05720.53
5.6.00.0370.06720.41
5.5.350.3000.04320.41
5.5.340.0030.07020.77
5.5.330.0170.06020.82
5.5.320.0100.06321.02
5.5.310.0200.05720.86
5.5.300.0230.06321.02
5.5.290.0230.05320.71
5.5.280.0170.06720.73
5.5.270.0330.06721.01
5.5.260.0200.06020.95
5.5.250.0330.06720.63
5.5.240.0270.06320.21
5.5.230.0100.06020.18
5.5.220.0200.04720.23
5.5.210.0170.05020.34
5.5.200.0230.05020.14
5.5.190.0070.07320.31
5.5.180.0330.04320.30
5.5.160.0330.04720.19
5.5.150.0270.05020.07
5.5.140.0200.05720.08
5.5.130.0230.06020.30
5.5.120.0130.06020.17
5.5.110.0100.06720.30
5.5.100.0100.06720.07
5.5.90.0200.05020.10
5.5.80.0230.05320.06
5.5.70.0130.06020.07
5.5.60.0330.03720.09
5.5.50.0300.06720.18
5.5.40.0230.07020.11
5.5.30.0300.05020.06
5.5.20.0270.07320.17
5.5.10.0230.05720.03
5.5.00.0130.05720.02

preferences:
59.43 ms | 401 KiB | 5 Q