3v4l.org

run code in 300+ PHP versions simultaneously
<?php $counts = array(); $item = 2; $counts[$item] ?? $counts[$item] = 2 ?? $counts[$item]++; var_dump($counts); $counts[$item] ?? $counts[$item] = 1 ?? $counts[$item]++; var_dump($counts);

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)
8.3.70.0180.00018.31
8.3.60.0000.01518.43
8.3.50.0140.00521.06
8.3.40.0030.01018.80
8.3.30.0110.00318.58
8.3.20.0050.00220.04
8.3.10.0050.00221.82
8.3.00.0040.00421.79
8.2.180.0180.00416.63
8.2.170.0100.00322.96
8.2.160.0100.00320.35
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00321.05
8.2.120.0050.00226.35
8.2.110.0100.01022.30
8.2.100.0070.00418.04
8.2.90.0000.00719.22
8.2.80.0090.00017.97
8.2.70.0000.01017.63
8.2.60.0040.00418.05
8.2.50.0000.00818.09
8.2.40.0000.00922.20
8.2.30.0050.00219.54
8.2.20.0000.00717.78
8.2.10.0000.00717.90
8.2.00.0000.00718.09
8.1.280.0100.00725.92
8.1.270.0130.00722.02
8.1.260.0000.00728.09
8.1.250.0000.00728.09
8.1.240.0110.00020.90
8.1.230.0040.00717.83
8.1.220.0040.00417.74
8.1.210.0000.00918.77
8.1.200.0070.00317.47
8.1.190.0040.00417.23
8.1.180.0050.00318.10
8.1.170.0000.00818.30
8.1.160.0000.00720.70
8.1.150.0060.00618.82
8.1.140.0040.00419.50
8.1.130.0000.00717.63
8.1.120.0000.00717.26
8.1.110.0040.00417.34
8.1.100.0070.00017.43
8.1.90.0000.00717.43
8.1.80.0060.00317.43
8.1.70.0050.00317.21
8.1.60.0050.00317.56
8.1.50.0080.00017.50
8.1.40.0050.00317.57
8.1.30.0000.00817.64
8.1.20.0070.00017.48
8.1.10.0000.00717.50
8.1.00.0040.00417.52
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00318.26
8.0.270.0000.00717.05
8.0.260.0030.00317.07
8.0.250.0000.00716.91
8.0.240.0080.00017.00
8.0.230.0070.00016.98
8.0.220.0040.00716.86
8.0.210.0070.00016.78
8.0.200.0000.00616.83
8.0.190.0070.00017.00
8.0.180.0000.00816.91
8.0.170.0000.00816.91
8.0.160.0000.00716.88
8.0.150.0050.00316.73
8.0.140.0030.00316.81
8.0.130.0030.00313.31
8.0.120.0040.00416.88
8.0.110.0040.00416.80
8.0.100.0000.00816.72
8.0.90.0040.00416.95
8.0.80.0080.00816.84
8.0.70.0000.00716.68
8.0.60.0000.00716.77
8.0.50.0030.00316.89
8.0.30.0070.01316.96
8.0.20.0110.00817.40
8.0.10.0040.00416.87
8.0.00.0060.01316.79
7.4.330.0000.00516.84
7.4.320.0000.00616.48
7.4.300.0030.00316.52
7.4.290.0000.00716.50
7.4.280.0090.00016.51
7.4.270.0030.00316.32
7.4.260.0030.00316.50
7.4.250.0030.00516.48
7.4.240.0000.00716.45
7.4.230.0070.00016.42
7.4.220.0090.00916.46
7.4.210.0030.01216.47
7.4.200.0040.00316.17
7.4.160.0100.00616.50
7.4.150.0100.00717.40
7.4.140.0100.01217.86
7.4.130.0080.01316.49
7.4.120.0150.00616.48
7.4.110.0070.01016.61
7.4.100.0100.00716.43
7.4.90.0080.01116.32
7.4.80.0120.00619.39
7.4.70.0140.00316.48
7.4.60.0100.00716.46
7.4.50.0070.00716.56
7.4.40.0160.00816.57
7.4.30.0120.01216.46
7.4.00.0000.01615.00
7.3.330.0030.00313.02
7.3.320.0000.00613.19
7.3.310.0000.00716.41
7.3.300.0000.00716.22
7.3.290.0070.00816.32
7.3.280.0050.01116.29
7.3.270.0150.00617.40
7.3.260.0120.00916.48
7.3.250.0130.00716.47
7.3.240.0050.01416.36
7.3.230.0140.00516.39
7.3.210.0200.00016.60
7.3.200.0060.01319.39
7.3.190.0110.00716.47
7.3.180.0100.00616.24
7.3.170.0100.00716.28
7.3.160.0040.01116.39
7.2.330.0100.01016.48
7.2.320.0080.01116.51
7.2.310.0070.01116.64
7.2.300.0030.01516.45
7.2.290.0120.00316.71
7.2.60.0090.00617.03
7.2.00.0060.00919.42
7.1.200.0070.00715.75
7.1.100.0000.00917.83
7.1.70.0030.00516.93
7.1.60.0150.00919.40
7.1.50.0130.00016.96
7.1.00.0000.08022.30
7.0.200.0120.00414.92
7.0.60.0170.07721.72
7.0.50.0070.08017.82
7.0.40.0100.04320.24
7.0.30.0300.06320.33
7.0.20.0300.05020.12
7.0.10.0070.04320.16
7.0.00.0070.05020.16
5.6.280.0000.03321.06
5.6.210.0170.03020.61
5.6.200.0100.05718.19
5.6.190.0100.04720.52
5.6.180.0270.06720.39
5.6.170.0300.05320.44
5.6.160.0100.08320.45
5.6.150.0070.08018.12
5.6.140.0030.06718.23
5.6.130.0070.08018.18
5.6.120.0030.06321.12
5.6.110.0070.04020.98
5.6.100.0100.06021.04
5.6.90.0000.04720.97
5.6.80.0070.07720.52
5.5.350.0600.05020.41
5.5.340.0100.04717.96
5.5.330.0030.07020.47
5.5.320.0200.08320.23
5.5.310.0170.04020.39
5.5.300.0030.05017.95
5.5.290.0100.07717.93
5.5.280.0030.04320.87
5.5.270.0070.08720.75
5.5.260.0070.08020.75
5.5.250.0300.06020.49
5.5.240.0230.06720.15

preferences:
67.29 ms | 401 KiB | 5 Q