3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [1, 2, 3]; foreach ($arr as &$a); foreach ($arr as $a); print_r($arr);

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)
8.3.60.0070.00718.20
8.3.50.0110.00722.05
8.3.40.0090.00618.54
8.3.30.0100.00318.88
8.3.20.0040.00420.27
8.3.10.0040.00421.96
8.3.00.0080.00022.43
8.2.180.0110.00416.38
8.2.170.0090.00622.96
8.2.160.0140.00419.14
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0080.00626.16
8.2.120.0040.00419.36
8.2.110.0070.00322.25
8.2.100.0070.00419.57
8.2.90.0000.00719.21
8.2.80.0100.00018.04
8.2.70.0070.00317.50
8.2.60.0100.00017.80
8.2.50.0000.01018.07
8.2.40.0040.00418.09
8.2.30.0000.00818.03
8.2.20.0040.00417.52
8.2.10.0050.00317.73
8.2.00.0040.00417.64
8.1.280.0170.00325.92
8.1.270.0040.00421.96
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00323.89
8.1.230.0030.00719.00
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0050.00917.13
8.1.190.0050.00317.65
8.1.180.0030.00618.71
8.1.170.0000.00818.71
8.1.160.0000.00722.04
8.1.150.0070.00018.54
8.1.140.0040.00717.47
8.1.130.0030.00317.71
8.1.120.0040.00417.37
8.1.110.0040.00417.46
8.1.100.0020.00517.48
8.1.90.0040.00417.40
8.1.80.0040.00417.44
8.1.70.0000.00817.41
8.1.60.0030.00617.51
8.1.50.0000.00717.48
8.1.40.0060.00317.52
8.1.30.0000.00917.51
8.1.20.0000.00817.54
8.1.10.0050.00217.40
8.1.00.0040.00417.21
8.0.300.0030.00518.77
8.0.290.0040.00417.18
8.0.280.0030.00318.39
8.0.270.0000.00717.28
8.0.260.0030.00516.76
8.0.250.0030.00316.83
8.0.240.0070.00016.95
8.0.230.0050.00216.89
8.0.220.0000.00716.81
8.0.210.0030.00316.86
8.0.200.0030.00316.96
8.0.190.0000.00716.82
8.0.180.0000.00716.78
8.0.170.0030.00516.92
8.0.160.0080.00016.82
8.0.150.0000.00716.71
8.0.140.0070.00016.74
8.0.130.0000.00513.30
8.0.120.0040.00416.89
8.0.110.0070.00016.94
8.0.100.0000.00916.91
8.0.90.0000.00716.85
8.0.80.0060.00916.87
8.0.70.0040.00416.99
8.0.60.0050.00316.94
8.0.50.0000.00716.70
8.0.30.0100.01116.91
8.0.20.0120.00917.40
8.0.10.0000.00717.06
8.0.00.0090.01116.85
7.4.330.0000.00415.00
7.4.320.0040.00416.61
7.4.300.0060.00016.59
7.4.290.0030.00316.42
7.4.280.0040.00416.51
7.4.270.0030.00316.47
7.4.260.0000.00716.59
7.4.250.0050.00316.45
7.4.240.0030.00416.54
7.4.230.0030.00316.67
7.4.220.0060.01116.52
7.4.210.0070.00916.57
7.4.200.0000.00716.70
7.4.190.0030.00316.71
7.4.160.0160.00316.33
7.4.150.0090.00817.40
7.4.140.0080.01917.86
7.4.130.0100.00616.55
7.4.120.0130.00616.48
7.4.110.0060.01016.39
7.4.100.0130.00616.31
7.4.90.0130.00316.45
7.4.80.0090.00919.39
7.4.70.0160.00316.53
7.4.60.0060.01116.76
7.4.50.0050.00316.47
7.4.40.0050.01022.77
7.4.30.0130.00316.66
7.4.00.0060.00914.95
7.3.330.0050.00013.01
7.3.320.0020.00213.04
7.3.310.0070.00016.12
7.3.300.0030.00316.15
7.3.290.0040.01116.29
7.3.280.0100.00616.24
7.3.270.0130.00317.40
7.3.260.0080.00916.23
7.3.250.0050.01216.24
7.3.240.0090.00916.45
7.3.230.0140.01116.44
7.3.210.0090.00916.21
7.3.200.0140.00919.39
7.3.190.0090.01116.38
7.3.180.0090.00916.32
7.3.170.0140.00616.46
7.3.160.0090.00816.50
7.3.120.0080.00814.70
7.2.330.0090.01116.37
7.2.320.0120.00916.53
7.2.310.0150.00616.70
7.2.300.0080.00716.60
7.2.290.0070.01016.50
7.1.70.0100.00617.20
7.1.60.0140.01119.82
7.1.50.0160.00616.96
7.1.00.0000.08022.41
7.0.200.0070.00716.52
7.0.140.0030.07321.98
7.0.100.0100.06320.02
7.0.90.0070.08320.04
7.0.80.0070.08319.88
7.0.70.0170.08319.97
7.0.60.0030.05719.80
7.0.50.0200.08020.30
7.0.40.0130.07720.12
7.0.30.0030.04320.05
7.0.20.0030.04719.92
7.0.10.0100.08720.13
7.0.00.0000.04720.04
5.6.280.0070.07020.90
5.6.250.0170.07320.75
5.6.240.0030.05020.72
5.6.230.0070.08020.56
5.6.220.0070.08020.61
5.6.210.0170.07320.46
5.6.200.0100.03321.17
5.6.190.0030.07021.04
5.6.180.0130.06721.03
5.6.170.0130.07721.07
5.6.160.0070.04321.01
5.6.150.0070.06721.02
5.6.140.0070.07721.10
5.6.130.0070.08020.95
5.6.120.0230.08321.01
5.6.110.0030.05321.00
5.6.100.0100.05721.05
5.6.90.0070.05721.03
5.6.80.0000.04020.55
5.6.70.0170.02320.33
5.6.60.0070.07720.30
5.6.50.0000.05020.49
5.6.40.0030.04720.30
5.6.30.0030.07020.38
5.6.20.0170.05020.28
5.6.10.0030.08020.48
5.6.00.0030.03720.43
5.5.380.0100.07720.49
5.5.370.0030.08020.46
5.5.360.0070.08720.48
5.5.350.0070.06320.38
5.5.340.0070.05720.90
5.5.330.0030.06020.86
5.5.320.0100.07320.87
5.5.310.0000.08720.71
5.5.300.0000.07720.79
5.5.290.0130.07720.88
5.5.280.0000.04320.89
5.5.270.0030.04020.89
5.5.260.0100.03720.82
5.5.250.0100.03320.74
5.5.240.0130.07320.18
5.5.230.0030.05020.20
5.5.220.0130.02720.13
5.5.210.0030.05020.29
5.5.200.0070.04020.15
5.5.190.0030.05320.24
5.5.180.0100.04320.27
5.5.160.0070.07020.22
5.5.150.0100.07320.27
5.5.140.0070.07320.17
5.5.130.0000.07320.12
5.5.120.0070.07320.10
5.5.110.0030.06720.24
5.5.100.0070.06320.16
5.5.90.0070.06719.94
5.5.80.0130.06720.08
5.5.70.0030.04320.11
5.5.60.0000.05719.99
5.5.50.0070.07720.08
5.5.40.0070.08020.05
5.5.30.0030.08020.04
5.5.20.0070.05020.04
5.5.10.0130.04319.92
5.5.00.0030.04320.08
5.4.450.0070.05719.58
5.4.440.0030.08019.45
5.4.430.0130.05319.55
5.4.420.0100.06019.18
5.4.410.0100.07319.35
5.4.400.0030.03318.91
5.4.390.0070.03019.14
5.4.380.0070.07718.84
5.4.370.0070.05318.90
5.4.360.0030.03718.94
5.4.350.0030.03319.14
5.4.340.0170.02318.87
5.4.320.0030.07719.03
5.4.310.0070.06018.88
5.4.300.0030.08019.09
5.4.290.0030.08019.17
5.4.280.0100.06018.96
5.4.270.0000.05019.20
5.4.260.0030.06319.03
5.4.250.0070.05719.11
5.4.240.0030.06019.22
5.4.230.0030.07318.99
5.4.220.0100.03719.12
5.4.210.0070.04719.13
5.4.200.0200.02318.93
5.4.190.0030.04718.95
5.4.180.0130.06718.85
5.4.170.0070.03719.20
5.4.160.0030.03718.82
5.4.150.0030.04019.21
5.4.140.0030.03316.34
5.4.130.0070.03716.32
5.4.120.0030.02716.43
5.4.110.0170.02316.33
5.4.100.0130.02716.29
5.4.90.0100.02316.56
5.4.80.0030.03316.41
5.4.70.0000.03316.47
5.4.60.0070.03016.47
5.4.50.0030.03016.40
5.4.40.0170.03716.54
5.4.30.0030.05716.31
5.4.20.0000.03016.24
5.4.10.0070.06716.43
5.4.00.0000.05315.77
5.3.290.0070.07714.66
5.3.280.0070.05014.59
5.3.270.0070.04014.60
5.3.260.0000.04314.56
5.3.250.0030.03714.58
5.3.240.0030.03714.57
5.3.230.0070.02714.59
5.3.220.0030.03714.45
5.3.210.0000.03314.52
5.3.200.0030.03014.59
5.3.190.0030.03714.43
5.3.180.0000.04014.53
5.3.170.0070.02714.42
5.3.160.0070.06014.57
5.3.150.0030.03014.55
5.3.140.0030.03714.54
5.3.130.0000.04014.37
5.3.120.0030.03314.41
5.3.110.0070.05014.37
5.3.100.0070.03313.98
5.3.90.0030.03013.96
5.3.80.0030.04713.97
5.3.70.0000.04013.96
5.3.60.0000.03313.98
5.3.50.0070.03313.92
5.3.40.0030.03313.93
5.3.30.0000.04013.82
5.3.20.0000.03713.65
5.3.10.0030.03313.66
5.3.00.0000.03013.57
5.2.170.0070.03312.16
5.2.160.0030.02712.16
5.2.150.0030.02712.16
5.2.140.0030.02712.16
5.2.130.0030.02712.16
5.2.120.0070.02712.16
5.2.110.0070.02012.16
5.2.100.0000.03012.16
5.2.90.0000.02312.16
5.2.80.0070.02312.16
5.2.70.0070.02312.16
5.2.60.0000.03012.16
5.2.50.0000.03012.16
5.2.40.0030.02312.16
5.2.30.0030.02712.16
5.2.20.0030.02712.16
5.2.10.0000.03012.16
5.2.00.0000.03012.16
5.1.60.0000.02712.16
5.1.50.0000.02312.16
5.1.40.0030.01712.16
5.1.30.0000.02312.16
5.1.20.0000.02712.16
5.1.10.0000.02712.16
5.1.00.0000.02312.16
5.0.50.0030.02012.16
5.0.40.0000.02012.16
5.0.30.0030.03012.16
5.0.20.0000.01712.16
5.0.10.0000.02012.16
5.0.00.0000.02712.16
4.4.90.0000.01312.16
4.4.80.0000.01712.16
4.4.70.0000.01312.16
4.4.60.0000.01312.16
4.4.50.0030.01012.16
4.4.40.0000.02012.16
4.4.30.0000.01712.16
4.4.20.0000.01312.16
4.4.10.0030.01312.16
4.4.00.0030.01712.16
4.3.110.0030.01012.16
4.3.100.0000.01312.16
4.3.90.0000.01312.16
4.3.80.0030.02012.16
4.3.70.0030.01012.16
4.3.60.0000.01312.16
4.3.50.0000.01312.16
4.3.40.0000.02012.16
4.3.30.0030.01312.16
4.3.20.0000.01312.16
4.3.10.0030.01312.16
4.3.00.0030.01312.16

preferences:
50.01 ms | 401 KiB | 5 Q