3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = ['foo'=>1, 'bar'=>2]; foreach($array as $k=>&$v) { $array['baz']=3; echo key($array); }

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)
8.3.70.0140.00016.63
8.3.60.0110.00418.43
8.3.50.0110.01122.04
8.3.40.0090.01218.94
8.3.30.0090.00619.08
8.3.20.0080.00020.21
8.3.10.0060.00322.10
8.3.00.0080.00022.54
8.2.180.0140.00416.75
8.2.170.0140.00722.96
8.2.160.0100.00319.16
8.2.150.0040.00424.18
8.2.140.0030.01624.66
8.2.130.0040.00426.16
8.2.120.0080.00019.36
8.2.110.0100.00722.00
8.2.100.0040.00819.40
8.2.90.0000.00819.22
8.2.80.0000.00817.97
8.2.70.0000.00817.75
8.2.60.0000.00918.05
8.2.50.0000.00718.07
8.2.40.0050.00318.22
8.2.30.0070.00018.16
8.2.20.0040.00417.69
8.2.10.0050.00319.59
8.2.00.0080.00017.73
8.1.280.0110.00725.92
8.1.270.0000.00722.04
8.1.260.0040.00426.35
8.1.250.0030.00528.09
8.1.240.0060.00323.79
8.1.230.0090.00319.14
8.1.220.0050.00317.79
8.1.210.0050.00318.77
8.1.200.0060.00317.48
8.1.190.0000.00817.30
8.1.180.0050.00318.10
8.1.170.0030.00618.66
8.1.160.0030.00722.06
8.1.150.0070.00018.64
8.1.140.0000.00817.48
8.1.130.0040.00417.80
8.1.120.0040.00417.47
8.1.110.0030.00617.49
8.1.100.0000.00817.35
8.1.90.0000.00717.28
8.1.80.0040.00417.32
8.1.70.0030.00317.37
8.1.60.0080.00417.58
8.1.50.0040.00417.57
8.1.40.0040.00417.50
8.1.30.0050.00217.59
8.1.20.0000.00817.68
8.1.10.0040.00417.61
8.1.00.0090.00017.46
8.0.300.0030.00618.77
8.0.290.0040.00417.18
8.0.280.0030.00318.47
8.0.270.0000.00717.11
8.0.260.0060.00016.93
8.0.250.0030.00316.85
8.0.240.0090.00016.95
8.0.230.0040.00416.86
8.0.220.0030.00316.91
8.0.210.0040.00416.93
8.0.200.0030.00316.91
8.0.190.0000.00816.93
8.0.180.0070.00016.80
8.0.170.0040.00416.91
8.0.160.0020.00516.87
8.0.150.0030.00516.88
8.0.140.0070.00016.85
8.0.130.0000.00513.30
8.0.120.0000.00816.75
8.0.110.0020.00516.77
8.0.100.0000.00716.78
8.0.90.0030.00316.93
8.0.80.0070.00716.91
8.0.70.0000.00716.95
8.0.60.0070.00016.71
8.0.50.0030.00516.91
8.0.30.0100.00916.99
8.0.20.0090.00917.43
8.0.10.0000.00716.95
8.0.00.0080.01016.65
7.4.330.0050.00015.00
7.4.320.0030.00316.49
7.4.300.0000.00616.42
7.4.290.0060.00016.58
7.4.280.0080.00016.60
7.4.270.0000.00616.62
7.4.260.0030.00316.61
7.4.250.0050.00216.46
7.4.240.0030.00416.56
7.4.230.0030.00316.39
7.4.220.0040.01316.63
7.4.210.0030.01116.54
7.4.200.0000.00716.61
7.4.190.0070.00016.48
7.4.160.0080.00916.47
7.4.150.0090.01317.40
7.4.140.0050.01217.86
7.4.130.0100.01016.45
7.4.120.0100.00616.51
7.4.110.0110.00616.48
7.4.100.0080.00816.46
7.4.90.0080.01116.39
7.4.80.0070.01119.39
7.4.70.0090.01216.53
7.4.60.0030.01416.55
7.4.50.0060.00316.13
7.4.40.0070.01122.77
7.4.30.0060.01116.56
7.4.00.0060.00915.11
7.3.330.0000.00513.30
7.3.320.0000.00513.16
7.3.310.0000.00716.23
7.3.300.0030.00316.18
7.3.290.0060.00916.28
7.3.280.0070.00816.29
7.3.270.0060.01017.40
7.3.260.0090.01216.49
7.3.250.0080.01016.62
7.3.240.0140.00416.54
7.3.230.0140.00316.57
7.3.210.0080.00816.35
7.3.200.0030.01719.39
7.3.190.0130.00316.36
7.3.180.0070.01016.36
7.3.170.0110.01116.39
7.3.160.0050.01616.30
7.3.120.0100.00715.04
7.2.330.0120.00616.36
7.2.320.0130.01016.78
7.2.310.0140.00316.52
7.2.300.0100.01316.61
7.2.290.0070.01016.42
7.2.60.0030.01316.97
7.2.00.0040.01119.45
7.1.200.0070.00715.79
7.1.70.0040.00816.94
7.1.60.0110.00316.97
7.1.50.0070.01716.96
7.1.00.0030.07322.35
7.0.200.0030.01316.89
7.0.140.0000.07721.98
7.0.60.0130.08020.00
7.0.50.0130.03017.89
7.0.40.0030.08020.27
7.0.30.0270.03020.13
7.0.20.0300.05020.16
7.0.10.0070.08020.19
7.0.00.0070.04720.19
5.6.280.0070.07021.13
5.6.210.0200.06720.45
5.6.200.0000.08718.13
5.6.190.0030.05720.33
5.6.180.0430.07020.61
5.6.170.0300.04320.52
5.6.160.0100.07320.32
5.6.150.0000.06018.13
5.6.140.0070.07318.15
5.6.130.0000.04718.08
5.6.120.0030.06021.00
5.6.110.0130.07720.96
5.6.100.0200.07320.97
5.6.90.0030.07720.88
5.6.80.0030.05320.52
5.6.70.4600.03320.36
5.5.350.0070.04020.39
5.5.340.0100.03317.95
5.5.330.0030.04320.19
5.5.320.0130.04720.13
5.5.310.0370.07020.21
5.5.300.0070.08317.96
5.5.290.0000.04318.02
5.5.280.0000.07720.80
5.5.270.0100.08020.76
5.5.260.0000.08020.86
5.5.250.0130.07020.68
5.5.240.0000.03320.26
5.4.450.0230.07719.38
5.4.440.0530.06319.09
5.4.430.0100.06019.46
5.4.420.0130.05319.46
5.4.410.0270.06319.34
5.4.400.0130.05018.66
5.4.390.0070.05318.57
5.4.380.0200.05718.72
5.4.370.0130.05318.63
5.4.360.0200.04718.52
5.4.350.0230.04718.52
5.4.340.0230.04318.46
5.4.320.0040.04012.45
5.4.310.0040.03912.45
5.4.300.0050.03712.46
5.4.290.0030.04112.45
5.4.280.0050.03612.35
5.4.270.0170.05318.76
5.4.260.0030.06719.07
5.4.250.0070.05318.84
5.4.240.0170.05319.02
5.4.230.0170.05319.07
5.4.220.0100.07719.00
5.4.210.0130.05718.82
5.4.200.0100.05318.98
5.4.190.0170.05318.97
5.4.180.0100.05318.96
5.4.170.0100.05719.06
5.4.160.0130.07018.96
5.4.150.0100.08018.84
5.4.140.0170.05016.43
5.4.130.0130.06316.50
5.4.120.0130.06716.50
5.4.110.0130.06316.36
5.4.100.0200.04016.55
5.4.90.0130.06016.57
5.4.80.0130.05716.50
5.4.70.0170.05016.61
5.4.60.0170.06016.52
5.4.50.0200.06016.33
5.4.40.0100.05716.38
5.4.30.0170.05716.50
5.4.20.0170.06016.41
5.4.10.0100.05316.55
5.4.00.0170.04315.89
5.3.290.0070.03712.80
5.3.280.0200.06014.75
5.3.270.0070.06014.74
5.3.260.0170.06314.78
5.3.250.0130.05314.59
5.3.240.0200.06014.75
5.3.230.0170.06314.77
5.3.220.0130.05314.61
5.3.210.0030.06314.72
5.3.200.0170.05014.71
5.3.190.0130.06014.66
5.3.180.0070.07314.49
5.3.170.0100.07314.67
5.3.160.0100.05014.55
5.3.150.0100.05014.55
5.3.140.0000.06014.71
5.3.130.0070.07014.64
5.3.120.0070.06314.53
5.3.110.0100.07014.75
5.3.100.0170.05714.15
5.3.90.0100.07314.19
5.3.80.0030.05714.01
5.3.70.0100.06014.11
5.3.60.0130.05714.06
5.3.50.0170.06013.76
5.3.40.0130.07014.00
5.3.30.0100.07013.72
5.3.20.0200.05713.80
5.3.10.0200.04013.80
5.3.00.0070.06713.45
5.2.170.0100.04011.36
5.2.160.0030.04711.35
5.2.150.0200.04711.28
5.2.140.0070.04711.37
5.2.130.0000.05011.21
5.2.120.0170.04311.20
5.2.110.0070.04311.29
5.2.100.0130.05311.32
5.2.90.0130.05011.25
5.2.80.0200.03711.32
5.2.70.0070.05011.02
5.2.60.0000.06311.07
5.2.50.0170.05011.21
5.2.40.0000.05711.14
5.2.30.0100.03711.02
5.2.20.0070.04711.01
5.2.10.0130.04310.96
5.2.00.0130.03710.76
5.1.60.0070.03310.32
5.1.50.0070.04010.14
5.1.40.0030.03710.17
5.1.30.0030.04310.61
5.1.20.0000.05710.40
5.1.10.0030.04010.14
5.1.00.0100.03710.21
5.0.50.0070.0308.54
5.0.40.0030.0408.61
5.0.30.0070.0478.52
5.0.20.0030.0308.18
5.0.10.0000.0308.14
5.0.00.0070.0538.25
4.4.90.0000.0337.23
4.4.80.0070.0277.23
4.4.70.0130.0137.23
4.4.60.0000.0277.23
4.4.50.0030.0307.23
4.4.40.0070.0307.23
4.4.30.0100.0237.23
4.4.20.0030.0307.23
4.4.10.0000.0237.23
4.4.00.0100.0337.23
4.3.110.0000.0237.23
4.3.100.0070.0177.23
4.3.90.0070.0177.23
4.3.80.0000.0437.23
4.3.70.0030.0237.23
4.3.60.0000.0277.23
4.3.50.0070.0207.23
4.3.40.0030.0407.23
4.3.30.0030.0277.23
4.3.20.0030.0277.23
4.3.10.0030.0277.23
4.3.00.0030.0276.47

preferences:
41.34 ms | 401 KiB | 5 Q