3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a['a']['b']['c'] = ($a['a']['b']['c'] ?? 0) + 1; echo json_encode($a), PHP_EOL; $a['a']['b']['c'] = ($a['a']['b']['c'] ?? 0) + 1; echo json_encode($a), PHP_EOL;

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)
8.5.00.0100.01320.06
8.4.150.0020.00014.05
8.4.140.0140.00817.43
8.4.130.0110.00918.85
8.4.120.0100.00923.99
8.4.110.0080.01017.83
8.4.100.0100.00518.77
8.4.90.0130.00720.52
8.4.80.0120.00818.90
8.4.70.0030.00617.77
8.4.60.0060.00518.90
8.4.50.0120.00818.63
8.4.40.0140.00719.54
8.4.30.0090.00618.64
8.4.20.0140.00719.67
8.4.10.0090.00023.94
8.3.280.0150.00618.23
8.3.270.0090.01116.29
8.3.260.0120.00916.56
8.3.250.0130.00619.04
8.3.240.0080.00817.12
8.3.230.0070.01216.53
8.3.220.0070.01118.78
8.3.210.0030.00418.50
8.3.200.0030.00616.76
8.3.190.0070.01018.72
8.3.180.0070.00417.18
8.3.170.0110.00720.60
8.3.160.0110.00718.35
8.3.150.0090.00916.95
8.3.140.0070.00016.86
8.3.130.0050.00316.86
8.3.120.0040.00420.65
8.3.110.0090.00016.79
8.3.100.0000.00818.20
8.3.90.0040.00426.77
8.3.80.0090.00018.33
8.3.70.0120.00916.38
8.3.60.0090.00618.43
8.3.50.0180.00316.72
8.3.40.0040.01120.17
8.3.30.0140.00018.63
8.3.20.0040.00424.18
8.3.10.0000.00724.66
8.3.00.0070.00026.16
8.2.290.0130.00620.13
8.2.280.0050.00318.27
8.2.270.0070.00717.27
8.2.260.0090.00617.08
8.2.250.0080.00016.49
8.2.240.0090.00016.48
8.2.230.0090.00020.94
8.2.220.0030.00624.06
8.2.210.0060.00326.77
8.2.200.0030.00618.41
8.2.190.0090.00616.75
8.2.180.0100.00316.63
8.2.170.0130.00619.04
8.2.160.0070.00722.96
8.2.150.0030.00525.66
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00826.16
8.2.110.0060.00321.01
8.2.100.0060.00617.84
8.2.90.0070.00319.60
8.2.80.0060.00317.75
8.2.70.0000.00817.50
8.2.60.0000.00717.93
8.2.50.0080.00018.07
8.2.40.0000.00718.28
8.2.30.0000.00818.11
8.2.20.0000.00719.37
8.2.10.0090.00017.59
8.2.00.0050.00517.51
8.1.330.0110.00821.80
8.1.320.0100.00916.21
8.1.310.0090.00016.67
8.1.300.0090.00018.57
8.1.290.0040.00730.84
8.1.280.0100.01025.92
8.1.270.0040.00424.66
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00422.66
8.1.230.0080.00322.75
8.1.220.0060.00317.78
8.1.210.0050.00318.91
8.1.200.0090.00017.36
8.1.190.0000.00817.23
8.1.180.0080.00018.10
8.1.170.0040.00418.84
8.1.160.0040.00418.88
8.1.150.0040.00418.53
8.1.140.0090.00417.40
8.1.130.0140.00017.34
8.1.120.0160.00017.43
8.1.110.0040.00817.41
8.1.100.0000.01317.49
8.1.90.0120.00417.41
8.1.80.0100.00517.29
8.1.70.0150.00017.46
8.1.60.0100.00317.56
8.1.50.0040.00717.52
8.1.40.0040.00717.67
8.1.30.0110.00317.63
8.1.20.0090.00417.69
8.1.10.0040.00817.57
8.1.00.0130.00317.52
8.0.300.0040.00419.89
8.0.290.0040.00416.75
8.0.280.0070.00018.36
8.0.270.0060.00316.66
8.0.260.0090.00016.81
8.0.250.0080.00016.78
8.0.240.0040.00416.87
8.0.230.0000.01116.84
8.0.220.0090.00516.61
8.0.210.0110.00316.65
8.0.200.0120.00016.78
8.0.190.0070.00516.86
8.0.180.0090.00016.70
8.0.170.0000.01116.77
8.0.160.0090.00316.79
8.0.150.0060.00616.73
8.0.140.0000.00816.73
8.0.130.0040.00416.66
8.0.120.0040.00416.64
8.0.110.0040.00416.80
8.0.100.0060.00316.66
8.0.90.0080.00016.65
8.0.80.0040.00416.68
8.0.70.0120.00216.65
8.0.60.0000.01116.61
8.0.50.0060.00616.74
8.0.30.0110.00316.65
8.0.20.0130.00016.77
8.0.10.0000.01016.84

preferences:
128.22 ms | 403 KiB | 5 Q