3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2,3,4); foreach($a AS &$y) { $y = $y*2; } unset($y); foreach($a AS $y) { echo $y.', '; } echo PHP_EOL, $y , PHP_EOL; foreach($a AS $x) { echo $x.', '; } echo PHP_EOL, $x , PHP_EOL;

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)
8.3.70.0070.00716.63
8.3.60.0100.01016.63
8.3.50.0110.00721.92
8.3.40.0060.00918.53
8.3.30.0100.00319.05
8.3.20.0050.00320.16
8.3.10.0000.00820.53
8.3.00.0030.00717.50
8.2.190.0090.00618.17
8.2.180.0060.00918.05
8.2.170.0100.00722.96
8.2.160.0140.00722.13
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0050.00319.66
8.2.110.0030.00621.03
8.2.100.0100.00017.72
8.2.90.0060.00319.64
8.2.80.0000.00817.63
8.2.70.0030.00517.50
8.2.60.0000.00818.03
8.2.50.0040.00418.07
8.2.40.0080.00418.09
8.2.30.0040.00418.09
8.2.20.0040.00417.60
8.2.10.0020.00518.11
8.2.00.0040.00417.64
8.1.280.0070.00725.92
8.1.270.0060.00320.55
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00322.52
8.1.230.0080.00420.72
8.1.220.0000.00817.74
8.1.210.0000.00918.95
8.1.200.0090.00017.35
8.1.190.0000.00817.35
8.1.180.0040.00422.07
8.1.170.0060.00318.89
8.1.160.0040.00418.87
8.1.150.0050.00218.99
8.1.140.0030.00517.36
8.1.130.0000.00717.74
8.1.120.0000.00717.47
8.1.110.0040.00317.50
8.1.100.0070.00017.47
8.1.90.0040.00417.49
8.1.80.0040.00417.49
8.1.70.0020.00517.32
8.1.60.0030.00717.58
8.1.50.0040.00417.43
8.1.40.0030.00717.51
8.1.30.0040.00417.66
8.1.20.0040.00417.61
8.1.10.0030.00617.34
8.1.00.0030.00617.36
8.0.300.0000.00719.89
8.0.290.0000.00816.75
8.0.280.0030.00318.49
8.0.270.0030.00317.31
8.0.260.0000.00617.22
8.0.250.0000.00716.82
8.0.240.0040.00416.93
8.0.230.0000.00717.00
8.0.220.0030.00316.75
8.0.210.0000.00816.79
8.0.200.0000.00616.93
8.0.190.0050.00216.93
8.0.180.0000.00816.82
8.0.170.0080.00016.87
8.0.160.0050.00316.80
8.0.150.0000.00816.82
8.0.140.0030.00616.70
8.0.130.0070.00013.36
8.0.120.0060.00316.88
8.0.110.0040.00416.82
8.0.100.0040.00416.90
8.0.90.0030.00516.71
8.0.80.0060.01616.89
8.0.70.0040.00416.95
8.0.60.0040.00416.95
8.0.50.0040.00416.95
8.0.30.0080.01016.97
8.0.20.0130.01017.40
8.0.10.0030.00517.00
8.0.00.0130.00716.67
7.4.330.0050.00015.02
7.4.320.0070.00016.64
7.4.300.0060.00016.35
7.4.290.0000.00616.55
7.4.280.0050.00516.49
7.4.270.0030.00516.48
7.4.260.0000.00716.48
7.4.250.0000.00716.47
7.4.240.0040.00416.53
7.4.230.0070.00016.34
7.4.220.0070.01016.43
7.4.210.0120.00916.46
7.4.200.0070.00016.44
7.4.160.0120.00316.57
7.4.150.0070.01117.40
7.4.140.0050.01417.86
7.4.130.0090.01116.57
7.4.120.0080.00916.43
7.4.110.0090.01616.40
7.4.100.0090.00916.47
7.4.90.0170.00716.50
7.4.80.0070.01119.39
7.4.70.0160.00316.51
7.4.60.0130.00316.66
7.4.50.0000.00816.63
7.4.40.0060.01216.31
7.4.30.0060.00916.50
7.4.00.0000.01414.79
7.3.330.0030.00313.06
7.3.320.0040.00413.01
7.3.310.0040.00316.35
7.3.300.0040.00416.25
7.3.290.0090.00716.26
7.3.280.0080.01016.22
7.3.270.0090.00917.40
7.3.260.0120.01216.23
7.3.250.0060.01116.54
7.3.240.0030.01316.31
7.3.230.0090.01016.39
7.3.210.0050.01116.32
7.3.200.0130.01019.39
7.3.190.0110.00816.57
7.3.180.0130.00516.33
7.3.170.0110.00716.49
7.3.160.0080.00816.26
7.3.10.0000.01216.72
7.3.00.0000.01216.48
7.2.330.0000.01716.55
7.2.320.0130.00316.39
7.2.310.0130.00316.48
7.2.300.0120.00616.72
7.2.290.0100.00816.49
7.2.130.0070.01016.68
7.2.120.0000.01516.71
7.2.110.0080.00416.94
7.2.100.0000.01516.91
7.2.90.0120.00416.49
7.2.80.0070.00316.87
7.2.70.0090.00617.05
7.2.60.0060.00717.02
7.2.50.0000.01216.99
7.2.40.0090.00917.02
7.2.30.0000.01516.86
7.2.20.0060.00617.03
7.2.10.0040.01216.61
7.2.00.0070.00316.80
7.1.250.0060.00915.78
7.1.200.0070.00015.97
7.1.70.0070.00717.27
7.1.60.0130.01019.32
7.1.50.0120.01216.86
7.1.00.0030.07322.41
7.0.200.0000.00716.56
7.0.140.0030.07021.97
7.0.60.0170.07319.89
7.0.50.0070.08317.83
7.0.40.0000.05320.04
7.0.30.0430.06020.16
7.0.20.0300.05020.00
7.0.10.0200.03719.99
7.0.00.0470.06720.12
5.6.280.0030.07320.92
5.6.210.0030.09320.67
5.6.200.0070.08318.21
5.6.190.0030.08720.41
5.6.180.0230.04720.56
5.6.170.0230.07720.35
5.6.160.0070.08320.45
5.6.150.0000.08718.21
5.6.140.0100.06718.21
5.6.130.0000.04318.20
5.6.120.0130.08020.97
5.6.110.0100.07321.06
5.6.100.0030.04321.10
5.6.90.0000.06020.99
5.6.80.0200.07020.38
5.5.350.0030.03320.38
5.5.340.0100.07318.01
5.5.330.0030.05020.07
5.5.320.3830.04020.13
5.5.310.0300.07020.41
5.5.300.0100.03317.89
5.5.290.0070.03717.91
5.5.280.0100.08020.76
5.5.270.0100.05720.95
5.5.260.0130.06720.72
5.5.250.0100.06720.49
5.5.240.0030.03020.12
5.4.450.3570.04319.57
5.4.440.3500.03719.48
5.4.430.4700.02019.42
5.4.420.3630.04319.40
5.4.410.4030.04319.29
5.4.400.3800.03318.81
5.4.390.3870.03018.79
5.4.380.3500.04319.25
5.4.370.4100.03318.79
5.4.360.3900.04318.79
5.4.350.3570.03019.06
5.4.340.3530.03718.79
5.4.320.4070.04319.06
5.4.310.3630.03319.24
5.4.300.3630.03019.12
5.4.290.3500.03719.13
5.4.280.3700.03719.24
5.4.270.3700.03719.06
5.4.260.3870.03018.80
5.4.250.3800.04018.93
5.4.240.3100.03319.15
5.4.230.3930.03719.08
5.4.220.3800.04019.07
5.4.210.3530.04019.13
5.4.200.3730.03319.08
5.4.190.3630.04019.12
5.4.180.3570.03719.12
5.4.170.3970.03018.89
5.4.160.3900.04018.86
5.4.150.3730.04019.13
5.4.140.3700.03316.27
5.4.130.3630.03716.17
5.4.120.4470.03716.31
5.4.110.3530.04016.46
5.4.100.3230.03716.35
5.4.90.3470.03716.23
5.4.80.3270.03316.29
5.4.70.3530.03316.18
5.4.60.3670.02716.32
5.4.50.3570.03716.38
5.4.40.3630.04016.39
5.4.30.3630.03316.18
5.4.20.4000.03316.41
5.4.10.3530.03716.38
5.4.00.3800.03715.90
5.3.290.3800.04014.52
5.3.280.3670.04714.62
5.3.270.2970.03714.55
5.3.260.3570.03314.63
5.3.250.3670.03314.46
5.3.240.3600.03014.69
5.3.230.4070.04314.43
5.3.220.3930.03714.42
5.3.210.3630.03714.52
5.3.200.3570.03714.52
5.3.190.3470.03714.44
5.3.180.3270.03714.46
5.3.170.3470.03714.39
5.3.160.3600.04014.62
5.3.150.3400.03714.41
5.3.140.2970.04014.50
5.3.130.3900.03014.48
5.3.120.3730.04314.45
5.3.110.3800.04714.49
5.3.100.3800.04014.01
5.3.90.3700.04013.86
5.3.80.3730.03014.04
5.3.70.3800.03713.86
5.3.60.3570.04314.09
5.3.50.3830.03313.79
5.3.40.3500.04013.97
5.3.30.3430.03013.75
5.3.20.3600.03313.74
5.3.10.3830.03713.50
5.3.00.3930.03313.58
5.2.170.3000.02311.19
5.2.160.2970.03311.16
5.2.150.3170.02711.24
5.2.140.3230.02710.98
5.2.130.3500.02011.01
5.2.120.3070.02710.99
5.2.110.3300.02310.95
5.2.100.3230.02711.12
5.2.90.3530.03711.11
5.2.80.3770.03011.25
5.2.70.3630.03310.96
5.2.60.3530.03710.98
5.2.50.3430.03310.87
5.2.40.2330.03311.04
5.2.30.2400.02710.82
5.2.20.2530.03010.89
5.2.10.2830.02710.76
5.2.00.2870.03310.66
5.1.60.2870.03710.02
5.1.50.3030.02010.02
5.1.40.3100.02010.02
5.1.30.3000.03010.28
5.1.20.2800.02710.27
5.1.10.2900.02710.02
5.1.00.2830.02710.14
5.0.50.1470.02010.02
5.0.40.1730.01710.02
5.0.30.1730.02310.02
5.0.20.1500.01710.02
5.0.10.1600.02310.02
5.0.00.1400.02710.02
4.4.90.1330.01710.02
4.4.80.1130.02010.02
4.4.70.1430.02010.02
4.4.60.1370.02010.02
4.4.50.1570.02010.02
4.4.40.1400.03310.02
4.4.30.1370.01710.02
4.4.20.1400.01710.02
4.4.10.1700.01710.02
4.4.00.1530.02710.02
4.3.110.1430.01310.02
4.3.100.1630.01310.02
4.3.90.1630.01710.02
4.3.80.1770.02710.02
4.3.70.1400.01710.02
4.3.60.1670.01710.02
4.3.50.1670.01710.02
4.3.40.1670.02010.02
4.3.30.0970.01710.02
4.3.20.0970.02010.02
4.3.10.0700.01310.02
4.3.00.0700.01310.02

preferences:
41.35 ms | 401 KiB | 5 Q