3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(1,2,3,4); foreach($array as $key => $value) { $value = &$array[$key]; echo current($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)
8.3.60.0090.00916.63
8.3.50.0170.00316.63
8.3.40.0100.00719.02
8.3.30.0110.00318.96
8.3.20.0000.00720.09
8.3.10.0040.00423.53
8.3.00.0000.00817.63
8.2.180.0100.00716.38
8.2.170.0110.00418.95
8.2.160.0060.00822.96
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0000.00721.04
8.2.110.0100.00020.53
8.2.100.0100.00317.75
8.2.90.0060.00319.17
8.2.80.0040.00417.97
8.2.70.0050.00317.60
8.2.60.0060.00318.05
8.2.50.0040.00418.07
8.2.40.0100.00018.32
8.2.30.0060.00318.07
8.2.20.0000.00717.66
8.2.10.0000.00717.95
8.2.00.0000.00718.15
8.1.280.0040.01125.92
8.1.270.0050.00320.25
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0030.00622.81
8.1.230.0060.00617.42
8.1.220.0030.00517.74
8.1.210.0080.00018.77
8.1.200.0060.00317.35
8.1.190.0040.00417.13
8.1.180.0040.00418.10
8.1.170.0030.00520.39
8.1.160.0080.00022.07
8.1.150.0030.00318.76
8.1.140.0040.00417.48
8.1.130.0030.00317.82
8.1.120.0000.00717.51
8.1.110.0030.00517.33
8.1.100.0040.00417.50
8.1.90.0080.00017.49
8.1.80.0020.00517.36
8.1.70.0070.00017.46
8.1.60.0040.00417.46
8.1.50.0000.00817.57
8.1.40.0000.00817.40
8.1.30.0000.00817.55
8.1.20.0030.00617.55
8.1.10.0060.00317.51
8.1.00.0080.00017.37
8.0.300.0000.00718.77
8.0.290.0060.00316.75
8.0.280.0030.00318.36
8.0.270.0030.00317.26
8.0.260.0000.00817.24
8.0.250.0030.00316.91
8.0.240.0030.00316.96
8.0.230.0070.00016.99
8.0.220.0040.00416.88
8.0.210.0030.00316.86
8.0.200.0000.00616.97
8.0.190.0030.00616.85
8.0.180.0070.00016.88
8.0.170.0040.00416.92
8.0.160.0000.00816.86
8.0.150.0070.00016.80
8.0.140.0040.00416.76
8.0.130.0000.00513.31
8.0.120.0040.00416.75
8.0.110.0000.00816.88
8.0.100.0080.00016.75
8.0.90.0050.00216.86
8.0.80.0030.01216.87
8.0.70.0040.00416.95
8.0.60.0000.00716.68
8.0.50.0000.00717.00
8.0.30.0120.00517.11
8.0.20.0140.01017.40
8.0.10.0000.00816.86
8.0.00.0110.00616.62
7.4.330.0000.00515.03
7.4.320.0000.00616.64
7.4.300.0000.00716.59
7.4.290.0040.00416.45
7.4.280.0070.00016.51
7.4.270.0030.00316.41
7.4.260.0000.00716.46
7.4.250.0080.00016.44
7.4.240.0060.00116.52
7.4.230.0000.00816.50
7.4.220.0150.00616.45
7.4.210.0120.00916.53
7.4.200.0070.00016.35
7.4.160.0100.01016.45
7.4.150.0070.01017.40
7.4.140.0080.01717.86
7.4.130.0120.00516.49
7.4.120.0080.00916.45
7.4.110.0120.00616.45
7.4.100.0040.01316.49
7.4.90.0070.01016.49
7.4.80.0070.00919.39
7.4.70.0130.00916.55
7.4.60.0000.01816.57
7.4.50.0000.00816.61
7.4.40.0100.00616.59
7.4.30.0120.00616.25
7.4.00.0030.01014.79
7.3.330.0030.00313.22
7.3.320.0060.00713.15
7.3.310.0030.00316.32
7.3.300.0050.00216.34
7.3.290.0000.00716.30
7.3.280.0080.01116.30
7.3.270.0120.00617.40
7.3.260.0070.01016.32
7.3.250.0080.00816.45
7.3.240.0100.00616.42
7.3.230.0120.00616.39
7.3.210.0070.01016.33
7.3.200.0200.00419.39
7.3.190.0160.00416.29
7.3.180.0050.01116.58
7.3.170.0140.00716.48
7.3.160.0040.01216.41
7.2.330.0100.00716.43
7.2.320.0160.01016.75
7.2.310.0060.01016.54
7.2.300.0060.01016.70
7.2.290.0100.01316.59
7.2.60.0060.01016.66
7.2.00.0000.01219.13
7.1.200.0030.00615.57
7.1.100.0000.01217.65
7.1.70.0040.00716.82
7.1.60.0130.01019.50
7.1.50.0030.01016.86
7.1.00.0100.07022.30
7.0.200.0040.00416.86
7.0.60.0070.07719.95
7.0.50.0030.04317.90
7.0.40.0000.09320.24
7.0.30.0230.08020.14
7.0.20.0300.07320.13
7.0.10.0200.05020.18
7.0.00.0100.03720.16
5.6.280.0070.07021.12
5.6.210.0030.08020.64
5.6.200.0070.04018.20
5.6.190.0130.08020.45
5.6.180.0270.04020.74
5.6.170.0200.04020.54
5.6.160.0030.04020.49
5.6.150.0000.04718.18
5.6.140.0130.05718.14
5.6.130.0000.05718.23
5.6.120.0070.08321.01
5.6.110.0030.07020.95
5.6.100.0030.08720.95
5.6.90.0030.05320.98
5.6.80.0130.04020.41
5.6.70.0100.08020.36
5.5.350.0200.08320.38
5.5.340.0070.04017.91
5.5.330.0030.04020.36
5.5.320.0100.04720.29
5.5.310.0270.04720.26
5.5.300.0030.06718.00
5.5.290.0070.08018.02
5.5.280.0100.09020.73
5.5.270.0000.04720.89
5.5.260.0030.04320.96
5.5.250.0200.06720.69
5.5.240.0030.05020.25
5.4.450.0100.06019.41
5.4.440.0270.04719.46
5.4.430.0200.04319.57
5.4.420.0270.06319.45
5.4.410.0200.05019.25
5.4.400.0130.05318.89
5.4.390.0200.05718.88
5.4.380.0230.03319.09
5.4.370.0170.05319.24
5.4.360.0270.07018.81
5.4.350.0200.05019.16
5.4.340.0200.04319.16
5.4.320.0300.07019.13
5.4.310.0270.06719.24
5.4.300.0270.04719.23
5.4.290.0300.04318.88
5.4.280.0230.07319.21
5.4.270.0170.07319.21
5.4.260.0270.06718.93
5.4.250.0330.06319.08
5.4.240.0230.05019.23
5.4.230.0200.04319.25
5.4.220.0170.05018.94
5.4.210.0270.05318.91
5.4.200.0270.05318.88
5.4.190.0230.05719.08
5.4.180.0270.06719.07
5.4.170.0270.07319.21
5.4.160.0170.07718.77
5.4.150.0230.05719.11
5.4.140.0270.07316.27
5.4.130.0230.04016.37
5.4.120.0230.06716.30
5.4.110.0270.06316.43
5.4.100.0230.06716.47
5.4.90.0200.05016.22
5.4.80.0230.04716.20
5.4.70.0230.04716.20
5.4.60.0230.05716.38
5.4.50.0200.03716.18
5.4.40.0200.03316.47
5.4.30.0270.07016.36
5.4.20.0230.06716.35
5.4.10.0200.07016.39
5.4.00.0200.05015.80
5.3.290.0270.06314.59
5.3.280.0200.06714.45
5.3.270.0230.07314.46
5.3.260.0270.04314.55
5.3.250.0200.05014.46
5.3.240.0170.06014.58
5.3.230.0300.05314.54
5.3.220.0270.06014.54
5.3.210.0300.07314.43
5.3.200.0230.05014.51
5.3.190.0230.04714.54
5.3.180.0200.07014.42
5.3.170.0270.06714.44
5.3.160.0200.06314.43
5.3.150.0230.05314.50
5.3.140.0200.04014.39
5.3.130.0200.07714.50
5.3.120.0230.06014.57
5.3.110.0170.04714.49
5.3.100.0230.07013.91
5.3.90.0230.07014.06
5.3.80.0270.06714.11
5.3.70.0230.05314.10
5.3.60.0270.05314.05
5.3.50.0200.04713.72
5.3.40.0270.06013.74
5.3.30.0270.06713.77
5.3.20.0230.06013.55
5.3.10.0270.06713.51
5.3.00.0200.06013.51
5.2.170.0300.02713.45
5.2.160.0300.04713.45
5.2.150.0170.05013.45
5.2.140.0230.06013.45
5.2.130.0200.05013.45
5.2.120.0230.03313.45
5.2.110.0200.05713.45
5.2.100.0230.03313.45
5.2.90.0330.04713.45
5.2.80.0200.06313.45
5.2.70.0100.05713.45
5.2.60.0230.05013.45
5.2.50.0200.05313.45
5.2.40.0170.03313.45
5.2.30.0170.05713.45
5.2.20.0130.04313.45
5.2.10.0230.04713.45
5.2.00.0170.03313.45
5.1.60.0100.03013.45
5.1.50.0170.04013.45
5.1.40.0170.05313.45
5.1.30.0200.03013.45
5.1.20.0130.04313.45
5.1.10.0130.04713.45
5.1.00.0200.03713.45
5.0.50.0070.02713.45
5.0.40.0070.03013.45
5.0.30.0070.03713.45
5.0.20.0070.04313.45
5.0.10.0130.03713.45
5.0.00.0130.06313.45
4.4.90.0070.03313.45
4.4.80.0030.03013.45
4.4.70.0130.02013.45
4.4.60.0170.02713.45
4.4.50.0130.03013.45
4.4.40.0100.05313.45
4.4.30.0130.03013.45
4.4.20.0130.03013.45
4.4.10.0070.02013.45
4.4.00.0070.05013.45
4.3.110.0070.02713.45
4.3.100.0070.02713.45
4.3.90.0070.03713.45
4.3.80.0200.04013.45
4.3.70.0070.03013.45
4.3.60.0170.02313.45
4.3.50.0100.03013.45
4.3.40.0070.05013.45
4.3.30.0070.03013.45
4.3.20.0070.03313.45
4.3.10.0030.03313.45
4.3.00.0100.02013.45

preferences:
62.25 ms | 400 KiB | 5 Q