3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a', 'b'); foreach ($arr as &$a) { var_dump($a); } var_dump($a); foreach ($arr as $a) { var_dump($a); }

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)
8.3.60.0140.00718.43
8.3.50.0130.00621.90
8.3.40.0120.00918.68
8.3.30.0100.00319.10
8.3.20.0040.00420.26
8.3.10.0040.00420.26
8.3.00.0080.00019.13
8.2.180.0150.00418.18
8.2.170.0100.00722.96
8.2.160.0090.00620.20
8.2.150.0050.00224.18
8.2.140.0050.00224.66
8.2.130.0070.00026.16
8.2.120.0080.00022.10
8.2.110.0040.00422.31
8.2.100.0090.00317.72
8.2.90.0060.00319.23
8.2.80.0060.00317.97
8.2.70.0080.00017.63
8.2.60.0040.00717.80
8.2.50.0000.00818.07
8.2.40.0030.00517.92
8.2.30.0050.00319.33
8.2.20.0080.00017.59
8.2.10.0060.00318.02
8.2.00.0000.00717.63
8.1.280.0120.00325.92
8.1.270.0000.00822.21
8.1.260.0050.00226.35
8.1.250.0030.00528.09
8.1.240.0040.00423.86
8.1.230.0070.00419.16
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0000.00917.13
8.1.190.0080.00017.36
8.1.180.0080.00418.10
8.1.170.0030.00618.65
8.1.160.0000.00822.01
8.1.150.0000.00818.80
8.1.140.0070.00017.34
8.1.130.0060.00017.87
8.1.120.0040.00317.33
8.1.110.0000.00717.34
8.1.100.0040.00417.46
8.1.90.0030.00717.35
8.1.80.0040.00417.49
8.1.70.0030.00317.46
8.1.60.0030.00517.59
8.1.50.0030.00517.55
8.1.40.0060.00317.46
8.1.30.0000.00817.70
8.1.20.0040.00417.50
8.1.10.0040.00417.35
8.1.00.0000.00717.27
8.0.300.0070.00018.77
8.0.290.0070.00016.75
8.0.280.0070.00018.36
8.0.270.0000.00717.27
8.0.260.0000.00717.25
8.0.250.0030.00316.82
8.0.240.0000.00716.89
8.0.230.0070.00016.89
8.0.220.0000.00716.87
8.0.210.0030.00316.82
8.0.200.0060.00016.93
8.0.190.0000.00716.86
8.0.180.0070.00016.93
8.0.170.0000.00816.93
8.0.160.0000.00716.93
8.0.150.0000.00816.71
8.0.140.0040.00416.74
8.0.130.0000.00513.32
8.0.120.0050.00516.84
8.0.110.0040.00416.93
8.0.100.0050.00316.69
8.0.90.0030.00316.95
8.0.80.0000.01616.93
8.0.70.0040.00416.93
8.0.60.0040.00416.84
8.0.50.0000.00816.76
8.0.30.0120.00717.17
8.0.20.0050.01317.40
8.0.10.0080.00017.08
8.0.00.0180.00316.75
7.4.330.0050.00015.09
7.4.320.0000.00716.52
7.4.300.0030.00316.59
7.4.290.0030.00316.60
7.4.280.0080.00016.60
7.4.270.0070.00016.56
7.4.260.0030.00316.56
7.4.250.0070.00016.54
7.4.240.0040.00416.54
7.4.230.0030.00316.68
7.4.220.0070.01016.55
7.4.210.0110.00416.54
7.4.200.0000.00816.71
7.4.160.0090.01516.50
7.4.150.0140.00417.40
7.4.140.0090.01517.86
7.4.130.0130.00416.54
7.4.120.0130.00316.53
7.4.110.0130.00716.39
7.4.100.0100.01316.52
7.4.90.0040.01216.29
7.4.80.0060.01216.36
7.4.70.0040.01216.63
7.4.60.0100.00616.31
7.4.50.0030.00516.29
7.4.40.0060.01216.45
7.4.30.0140.00816.47
7.4.00.0090.00315.05
7.3.330.0000.00513.00
7.3.320.0030.00313.12
7.3.310.0040.00416.13
7.3.300.0000.00616.23
7.3.290.0000.01416.27
7.3.280.0080.00716.24
7.3.270.0090.00917.40
7.3.260.0170.00016.31
7.3.250.0110.00916.34
7.3.240.0140.00316.57
7.3.230.0090.01216.54
7.3.210.0050.01116.59
7.3.200.0120.01219.39
7.3.190.0130.00616.29
7.3.180.0150.00316.38
7.3.170.0100.01016.43
7.3.160.0120.00916.36
7.3.10.0030.01016.77
7.3.00.0040.01116.81
7.2.330.0070.01016.41
7.2.320.0080.00816.39
7.2.310.0100.00616.57
7.2.300.0110.00616.55
7.2.290.0080.00816.66
7.2.130.0030.00716.84
7.2.120.0070.01016.51
7.2.110.0030.00716.59
7.2.100.0060.00916.69
7.2.90.0000.01217.08
7.2.80.0030.01316.92
7.2.70.0030.00916.77
7.2.60.0090.00916.79
7.2.50.0030.01316.91
7.2.40.0080.00316.98
7.2.30.0000.01616.88
7.2.20.0000.01216.80
7.2.10.0030.00916.83
7.2.00.0090.00717.46
7.1.250.0070.00715.74
7.1.200.0000.01115.88
7.1.100.0050.00518.30
7.1.70.0040.00416.96
7.1.60.0140.01119.32
7.1.50.0080.01516.89
7.1.00.0070.07022.43
7.0.200.0080.00416.70
7.0.140.0070.06722.18
7.0.60.0100.05319.86
7.0.50.0100.07317.79
7.0.40.0100.06019.98
7.0.30.0200.08020.01
7.0.20.0270.08020.11
7.0.10.0030.07020.12
7.0.00.0030.08720.12
5.6.280.0030.07320.99
5.6.210.0070.08020.73
5.6.200.0070.07018.13
5.6.190.0070.06320.77
5.6.180.0170.04720.62
5.6.170.0300.07320.41
5.6.160.0000.05020.70
5.6.150.0030.05718.21
5.6.140.0130.07718.08
5.6.130.0100.07718.15
5.6.120.0070.08720.96
5.6.110.0070.08020.98
5.6.100.0070.06321.08
5.6.90.0100.08320.94
5.6.80.0100.07720.38
5.5.350.4230.03320.38
5.5.340.0030.05717.97
5.5.330.0130.07720.42
5.5.320.0200.07720.33
5.5.310.0400.06720.33
5.5.300.0030.06018.02
5.5.290.0100.08318.02
5.5.280.0030.08320.76
5.5.270.0070.08320.89
5.5.260.0130.07320.83
5.5.250.0100.07020.57
5.5.240.0300.06720.18
5.4.450.0170.06319.41
5.4.440.0330.08319.41
5.4.430.0230.05019.27
5.4.420.0200.04319.11
5.4.410.0200.04719.00
5.4.400.0230.04019.06
5.4.390.0170.04019.24
5.4.380.0230.07319.13
5.4.370.0270.06719.08
5.4.360.0230.04718.96
5.4.350.0400.05319.25
5.4.340.0230.07718.89
5.4.320.0230.08019.08
5.4.310.0270.04718.80
5.4.300.0270.03318.92
5.4.290.0270.07319.12
5.4.280.0300.04319.08
5.4.270.0270.04019.07
5.4.260.0130.05719.10
5.4.250.0230.05018.79
5.4.240.0330.06019.15
5.4.230.0270.04318.88
5.4.220.0230.07319.11
5.4.210.0230.07319.26
5.4.200.0230.03718.93
5.4.190.0270.06019.07
5.4.180.0230.05719.15
5.4.170.0270.03319.24
5.4.160.0330.06319.22
5.4.150.0270.05718.88
5.4.140.0270.06016.31
5.4.130.0230.04716.40
5.4.120.0300.03716.22
5.4.110.0330.06016.22
5.4.100.0270.07016.38
5.4.90.0330.06016.22
5.4.80.0170.03716.32
5.4.70.0100.04016.32
5.4.60.0130.07016.40
5.4.50.0230.05716.36
5.4.40.0230.04316.47
5.4.30.0370.05316.41
5.4.20.0330.05016.36
5.4.10.0370.03716.22
5.4.00.0170.04716.22
5.3.290.0170.07316.22
5.3.280.0230.06716.22
5.3.270.0270.06016.22
5.3.260.0200.04716.22
5.3.250.0230.07016.22
5.3.240.0170.06316.22
5.3.230.0200.06716.22
5.3.220.0230.03016.22
5.3.210.0130.04016.22
5.3.200.0230.07016.22
5.3.190.0170.07716.22
5.3.180.0200.04716.22
5.3.170.0200.03316.22
5.3.160.0330.06316.22
5.3.150.0230.06716.22
5.3.140.0200.06316.22
5.3.130.0230.06716.22
5.3.120.0230.04716.22
5.3.110.0230.07316.22
5.3.100.0330.03716.22
5.3.90.0300.06716.22
5.3.80.0200.05316.22
5.3.70.0270.03316.22
5.3.60.0300.03016.22
5.3.50.0170.06316.22
5.3.40.0270.05316.22
5.3.30.0230.06316.22
5.3.20.0200.04016.22
5.3.10.0170.07016.22
5.3.00.0170.06016.22
5.2.170.0130.04016.22
5.2.160.0130.03016.22
5.2.150.0130.03016.22
5.2.140.0130.06016.22
5.2.130.0100.05016.22
5.2.120.0300.04716.22
5.2.110.0100.03316.22
5.2.100.0130.03016.22
5.2.90.0200.02716.22
5.2.80.0130.04316.22
5.2.70.0130.03016.22
5.2.60.0270.05316.22
5.2.50.0130.03716.22
5.2.40.0130.03316.22
5.2.30.0200.03316.22
5.2.20.0130.03016.22
5.2.10.0100.05716.22
5.2.00.0230.05316.22
5.1.60.0200.05016.22
5.1.50.0170.04016.22
5.1.40.0070.04716.22
5.1.30.0130.05016.22
5.1.20.0070.04316.22
5.1.10.0070.03316.22
5.1.00.0170.04716.22
5.0.50.0100.02016.22
5.0.40.0130.04016.22
5.0.30.0100.07016.22
5.0.20.0070.04016.22
5.0.10.0100.04316.22
5.0.00.0070.06016.22
4.4.90.0100.02016.22
4.4.80.0070.03016.22
4.4.70.0130.01716.22
4.4.60.0070.02716.22
4.4.50.0100.03316.22
4.4.40.0070.03016.22
4.4.30.0030.01716.22
4.4.20.0070.01716.22
4.4.10.0130.03016.22
4.4.00.0100.02316.22
4.3.110.0170.02716.22
4.3.100.0100.02016.22
4.3.90.0100.02316.22
4.3.80.0170.02016.22
4.3.70.0130.01316.22
4.3.60.0100.02316.22
4.3.50.0070.02016.22
4.3.40.0070.02716.22
4.3.30.0070.03316.22
4.3.20.0030.02716.22
4.3.10.0070.03716.22
4.3.00.0170.00716.22

preferences:
46.2 ms | 401 KiB | 5 Q