3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [0]; foreach ($array as $key => &$val) { var_dump($val); $array[++$key] = 'lolcats'; }

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)
8.3.60.0200.01316.50
8.3.50.0360.00922.07
8.3.40.0200.01018.82
8.3.30.0200.00318.83
8.3.20.0130.00720.59
8.3.10.0180.00323.55
8.3.00.0170.00319.91
8.2.180.0190.00618.17
8.2.170.0300.01922.96
8.2.160.0350.00420.50
8.2.150.0120.00824.18
8.2.140.0170.00724.66
8.2.130.0170.00719.64
8.2.120.0170.00326.35
8.2.110.0230.00320.93
8.2.100.0230.00718.18
8.2.90.0030.01119.42
8.2.80.0110.00418.05
8.2.70.0080.00817.75
8.2.60.0070.00718.16
8.2.50.0070.00718.07
8.2.40.0130.00322.17
8.2.30.0060.00621.01
8.2.20.0100.00318.07
8.2.10.0110.00418.43
8.2.00.0110.00418.32
8.1.280.0240.01325.92
8.1.270.0160.00623.99
8.1.260.0080.00426.35
8.1.250.0140.00728.09
8.1.240.0080.01622.27
8.1.230.0250.00319.36
8.1.220.0110.00418.03
8.1.210.0070.00718.77
8.1.200.0130.00417.60
8.1.190.0090.00517.48
8.1.180.0140.00018.10
8.1.170.0130.00018.78
8.1.160.0100.00321.11
8.1.150.0100.00319.24
8.1.140.0100.00319.93
8.1.130.0000.01217.99
8.1.120.0070.00717.68
8.1.110.0100.00317.79
8.1.100.0070.00717.85
8.1.90.0070.00617.67
8.1.80.0090.00617.83
8.1.70.0030.01017.82
8.1.60.0040.00717.86
8.1.50.0040.01117.84
8.1.40.0160.00017.93
8.1.30.0110.00417.93
8.1.20.0000.01117.86
8.1.10.0070.00717.81
8.1.00.0050.00817.80
8.0.300.0090.00918.77
8.0.290.0100.00316.75
8.0.280.0060.00918.71
8.0.270.0030.00616.86
8.0.260.0100.00317.52
8.0.250.0030.00917.19
8.0.240.0100.00317.18
8.0.230.0030.01017.16
8.0.220.0080.00417.01
8.0.210.0040.00916.92
8.0.200.0100.00317.08
8.0.190.0100.00717.17
8.0.180.0070.00717.16
8.0.170.0040.01117.15
8.0.160.0090.00016.96
8.0.150.0070.00717.02
8.0.140.0110.00317.05
8.0.130.0080.00013.44
8.0.120.0070.00717.14
8.0.110.0140.00017.10
8.0.100.0040.01217.16
8.0.90.0000.01316.95
8.0.80.0140.03117.05
8.0.70.0100.00317.05
8.0.60.0090.00416.95
8.0.50.0000.01016.89
8.0.30.0310.02217.31
8.0.20.0680.03217.40
8.0.10.0090.00617.03
8.0.00.0410.03016.93
7.4.330.0060.00616.72
7.4.320.0060.00616.65
7.4.300.0000.01516.69
7.4.290.0110.00616.64
7.4.280.0070.00316.48
7.4.270.0090.00516.79
7.4.260.0130.00016.78
7.4.250.0070.00716.67
7.4.240.0090.00416.71
7.4.230.0140.00016.73
7.4.220.0350.02916.75
7.4.210.0200.04016.73
7.4.200.0080.00816.49
7.4.160.0570.04916.86
7.4.150.0500.02917.40
7.4.140.0500.02517.86
7.4.130.0520.02216.75
7.4.120.0450.02716.61
7.4.110.0770.02416.92
7.4.100.0650.03016.70
7.4.90.0620.01716.63
7.4.80.0560.01019.39
7.4.70.0520.02316.63
7.4.60.0310.03616.77
7.4.50.0180.02316.79
7.4.40.0650.01516.81
7.4.30.0480.03916.82
7.4.00.0060.01615.28
7.3.330.0030.00313.29
7.3.320.0000.01313.43
7.3.310.0080.00816.31
7.3.300.0100.00616.29
7.3.290.0290.02116.44
7.3.280.0380.02016.47
7.3.270.0500.02717.40
7.3.260.0310.03116.41
7.3.250.0460.02416.57
7.3.240.0730.03516.51
7.3.230.0560.01716.39
7.3.210.0360.02416.52
7.3.200.0400.01716.79
7.3.190.0560.03316.60
7.3.180.0340.01716.70
7.3.170.0220.03416.63
7.3.160.0170.02416.47
7.2.330.0620.04616.68
7.2.320.0170.02216.78
7.2.310.0230.03016.90
7.2.300.0500.02816.79
7.2.290.0470.03516.67
7.2.60.0130.01616.61
7.2.00.0060.01519.09
7.1.200.0210.00515.71
7.1.100.0200.01017.95
7.1.70.0040.00817.08
7.1.60.0200.01019.52
7.1.50.0280.00717.11
7.1.00.0130.07722.21
7.0.200.0140.00315.18
7.0.100.0130.04320.07
7.0.90.0230.06720.20
7.0.80.0200.04320.21
7.0.70.0400.04020.12
7.0.60.0530.05320.17
7.0.50.0170.05020.49
7.0.40.0170.05020.11
7.0.30.0070.05719.96
7.0.20.0200.04320.10
7.0.10.0130.04720.06
7.0.00.0200.04320.07
5.6.250.0070.06320.59
5.6.240.0200.03320.64
5.6.230.0070.03720.63
5.6.220.0070.05020.56
5.6.210.0100.03720.77
5.6.200.0170.04721.05
5.6.190.0170.04320.91
5.6.180.0100.04321.09
5.6.170.0100.04020.94
5.6.160.0130.03321.04
5.6.150.0130.04021.11
5.6.140.0100.03720.96
5.6.130.0070.05721.03
5.6.120.0070.05021.05
5.6.110.0300.04020.99
5.6.100.0070.04721.11
5.6.90.0130.04020.97
5.6.80.0300.03020.43
5.6.70.0130.03720.40
5.6.60.0130.04020.38
5.6.50.0100.04720.40
5.6.40.0100.04320.37
5.6.30.0170.04020.41
5.6.20.0030.04720.52
5.6.10.0130.03720.52
5.6.00.0030.04320.33
5.5.380.0030.05320.42
5.5.370.0100.04320.44
5.5.360.0030.05020.33
5.5.350.0130.04020.40
5.5.340.0100.04720.87
5.5.330.0170.03720.80
5.5.320.0200.03320.75
5.5.310.0170.04320.91
5.5.300.0030.04720.82
5.5.290.0130.05020.79
5.5.280.0130.05320.75
5.5.270.0170.04720.82
5.5.260.0100.04320.77
5.5.250.0000.05320.69
5.5.240.0070.05020.28
5.5.230.0070.04720.13
5.5.220.0100.04320.16
5.5.210.0030.04320.01
5.5.200.0170.04320.12
5.5.190.0200.04020.27
5.5.180.0170.02720.16
5.5.160.0030.04320.11
5.5.150.0130.03720.17
5.5.140.0030.04320.24
5.5.130.0130.03320.16
5.5.120.0100.04020.23
5.5.110.0100.04020.02
5.5.100.0070.04320.11
5.5.90.0030.04320.03
5.5.80.0100.03319.91
5.5.70.0100.04320.09
5.5.60.0070.04020.05
5.5.50.0000.04320.02
5.5.40.0030.04319.96
5.5.30.0030.04320.13
5.5.20.0070.04320.14
5.5.10.0030.05020.06
5.5.00.0030.05020.04

preferences:
57.99 ms | 401 KiB | 5 Q