3v4l.org

run code in 300+ PHP versions simultaneously
<?php $counts = array(); $item = 2; $counts[$item] = ($counts[$item] ?? 0) + 1; var_dump($counts); $counts[$item] = ($counts[$item] ?? 0) + 1; 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)
8.3.60.0070.00718.43
8.3.50.0140.00316.26
8.3.40.0120.00418.57
8.3.30.0100.00318.71
8.3.20.0040.00420.08
8.3.10.0040.00421.86
8.3.00.0040.00421.81
8.2.180.0160.00616.50
8.2.170.0040.01122.96
8.2.160.0040.01120.46
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0070.00021.03
8.2.120.0070.00026.35
8.2.110.0110.00019.27
8.2.100.0090.00317.80
8.2.90.0000.00719.05
8.2.80.0060.00317.97
8.2.70.0060.00317.36
8.2.60.0060.00318.04
8.2.50.0030.00618.09
8.2.40.0040.00422.19
8.2.30.0040.00419.34
8.2.20.0020.00517.75
8.2.10.0000.00718.04
8.2.00.0030.00518.10
8.1.280.0210.00025.92
8.1.270.0120.00322.05
8.1.260.0080.00028.09
8.1.250.0070.00028.09
8.1.240.0040.00422.16
8.1.230.0080.00317.89
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0000.01017.25
8.1.190.0040.00417.38
8.1.180.0000.00818.10
8.1.170.0050.00318.36
8.1.160.0030.00420.69
8.1.150.0090.00018.73
8.1.140.0040.00419.59
8.1.130.0030.00317.48
8.1.120.0030.00417.29
8.1.110.0000.00717.29
8.1.100.0000.00817.42
8.1.90.0070.00017.30
8.1.80.0090.00017.29
8.1.70.0040.00417.32
8.1.60.0030.00617.57
8.1.50.0030.00617.57
8.1.40.0060.00317.50
8.1.30.0040.00417.59
8.1.20.0040.00417.62
8.1.10.0030.00617.48
8.1.00.0040.00417.37
8.0.300.0070.00318.77
8.0.290.0040.00416.75
8.0.280.0030.00318.36
8.0.270.0030.00317.10
8.0.260.0030.00317.28
8.0.250.0070.00016.82
8.0.240.0030.00516.88
8.0.230.0000.00716.91
8.0.220.0030.00616.78
8.0.210.0070.00016.79
8.0.200.0000.00616.92
8.0.190.0020.00516.84
8.0.180.0040.00416.86
8.0.170.0050.00216.84
8.0.160.0000.00716.75
8.0.150.0000.00816.65
8.0.140.0030.00316.82
8.0.130.0000.00513.21
8.0.120.0080.00016.73
8.0.110.0040.00416.67
8.0.100.0040.00416.69
8.0.90.0040.00416.69
8.0.80.0090.00616.81
8.0.70.0040.00416.74
8.0.60.0050.00316.83
8.0.50.0040.00416.84
8.0.30.0100.00516.97
8.0.20.0110.00817.40
8.0.10.0000.00817.06
8.0.00.0100.00916.57
7.4.330.0000.00616.67
7.4.320.0030.00316.56
7.4.300.0000.00816.54
7.4.290.0030.00316.57
7.4.280.0080.00016.42
7.4.270.0050.00216.54
7.4.260.0070.00016.34
7.4.250.0070.00016.53
7.4.240.0070.00016.54
7.4.230.0020.00516.41
7.4.220.0060.01216.57
7.4.210.0070.00716.57
7.4.200.0040.00416.48
7.4.160.0060.00916.51
7.4.150.0090.00917.40
7.4.140.0100.01217.86
7.4.130.0060.01316.42
7.4.120.0160.00816.48
7.4.110.0100.01016.50
7.4.100.0030.01516.32
7.4.90.0170.00016.34
7.4.80.0080.00919.39
7.4.70.0120.01216.29
7.4.60.0100.00716.49
7.4.50.0110.00416.35
7.4.40.0070.01016.41
7.4.30.0140.00416.30
7.4.00.0070.00314.93
7.3.330.0030.00413.08
7.3.320.0060.00013.29
7.3.310.0070.00016.26
7.3.300.0070.00016.32
7.3.290.0050.01316.30
7.3.280.0070.01016.24
7.3.270.0110.01517.40
7.3.260.0150.00616.35
7.3.250.0120.00916.36
7.3.240.0070.01116.39
7.3.230.0070.01116.57
7.3.210.0110.00616.53
7.3.200.0040.02119.39
7.3.190.0070.01016.45
7.3.180.0120.00616.24
7.3.170.0070.01016.35
7.3.160.0160.00016.32
7.3.10.0040.00816.73
7.3.00.0000.01216.71
7.2.330.0110.00716.46
7.2.320.0130.00916.59
7.2.310.0090.00916.50
7.2.300.0060.01216.67
7.2.290.0040.01316.61
7.2.130.0000.01016.63
7.2.120.0000.00916.63
7.2.110.0060.00317.00
7.2.100.0030.00616.89
7.2.90.0060.00616.80
7.2.80.0030.01016.79
7.2.70.0090.00316.58
7.2.60.0070.00716.98
7.2.50.0040.01216.93
7.2.40.0000.00816.75
7.2.30.0030.00916.91
7.2.20.0090.00316.76
7.2.10.0000.01416.73
7.2.00.0070.00818.09
7.1.250.0000.01115.80
7.1.200.0030.00315.87
7.1.100.0000.01118.18
7.1.70.0030.00317.23
7.1.60.0030.02019.40
7.1.50.0040.00816.84
7.1.00.0000.08022.40
7.0.200.0120.00314.99
7.0.60.0170.07721.83
7.0.50.0070.04017.88
7.0.40.0100.08320.30
7.0.30.0270.08020.30
7.0.20.0300.04720.11
7.0.10.0000.05020.20
7.0.00.0030.09020.00
5.6.280.0000.03321.04
5.6.210.0100.07320.60
5.6.200.0030.08318.22
5.6.190.0030.09020.48
5.6.180.0330.05020.50
5.6.170.0270.06720.55
5.6.160.0070.06020.45
5.6.150.0070.05318.15
5.6.140.0030.04718.14
5.6.130.0030.07318.21
5.6.120.0000.04321.01
5.6.110.0000.04320.93
5.6.100.0100.07020.98
5.6.90.0000.04321.11
5.6.80.0170.07320.52
5.5.350.0270.07720.46
5.5.340.0130.06318.02
5.5.330.0030.07720.21
5.5.320.0630.05320.37
5.5.310.0300.03320.23
5.5.300.0030.04318.00
5.5.290.0100.07717.97
5.5.280.0130.07720.79
5.5.270.0070.05020.75
5.5.260.0100.08320.76
5.5.250.0070.03720.45
5.5.240.0270.08320.14

preferences:
53.8 ms | 401 KiB | 5 Q