3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a'=>'first', 'b'=>'second', 'c'=>'third'); foreach ($arr as &$z); // do nothing. maybe? foreach ($arr as $z); // do nothing. maybe? print_r($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)
8.3.60.0070.01018.30
8.3.50.0100.00521.02
8.3.40.0150.00618.48
8.3.30.0110.00418.79
8.3.20.0170.00020.22
8.3.10.0000.00821.92
8.3.00.0000.00822.38
8.2.180.0040.01116.32
8.2.170.0090.00622.96
8.2.160.0030.01419.20
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0000.00819.54
8.2.110.0090.00021.00
8.2.100.0040.00819.51
8.2.90.0000.00818.86
8.2.80.0090.00017.97
8.2.70.0000.00817.38
8.2.60.0040.00417.93
8.2.50.0050.00318.10
8.2.40.0080.00018.05
8.2.30.0000.00717.92
8.2.20.0070.00017.56
8.2.10.0050.00317.72
8.2.00.0000.00717.73
8.1.280.0140.00725.92
8.1.270.0050.00320.35
8.1.260.0040.00426.35
8.1.250.0050.00328.09
8.1.240.0060.00322.79
8.1.230.0110.00017.64
8.1.220.0060.00317.77
8.1.210.0030.00618.77
8.1.200.0060.00317.35
8.1.190.0000.00817.35
8.1.180.0000.00818.10
8.1.170.0080.00018.59
8.1.160.0040.00422.00
8.1.150.0000.00718.60
8.1.140.0000.00717.44
8.1.130.0030.00517.86
8.1.120.0040.00417.37
8.1.110.0000.00817.42
8.1.100.0040.00417.43
8.1.90.0000.00817.48
8.1.80.0000.00717.43
8.1.70.0000.00717.42
8.1.60.0060.00617.55
8.1.50.0040.00417.38
8.1.40.0040.00417.51
8.1.30.0040.00417.50
8.1.20.0030.00517.54
8.1.10.0000.00717.34
8.1.00.0040.00417.34
8.0.300.0070.00018.77
8.0.290.0040.00416.63
8.0.280.0030.00318.48
8.0.270.0030.00317.24
8.0.260.0000.00616.72
8.0.250.0000.00716.84
8.0.240.0080.00016.82
8.0.230.0000.00616.85
8.0.220.0000.00716.90
8.0.210.0000.00616.82
8.0.200.0030.00316.82
8.0.190.0030.00416.91
8.0.180.0070.00016.91
8.0.170.0030.00616.89
8.0.160.0040.00416.82
8.0.150.0000.00816.73
8.0.140.0040.00416.88
8.0.130.0030.00313.24
8.0.120.0000.00716.88
8.0.110.0040.00416.77
8.0.100.0040.00416.92
8.0.90.0000.00716.75
8.0.80.0000.01616.93
8.0.70.0070.00016.77
8.0.60.0000.00816.77
8.0.50.0040.00416.94
8.0.30.0080.01217.14
8.0.20.0070.01117.40
8.0.10.0000.00716.91
8.0.00.0060.01316.69
7.4.330.0060.00015.00
7.4.320.0060.00016.63
7.4.300.0000.00716.56
7.4.290.0050.00616.50
7.4.280.0000.00616.49
7.4.270.0040.00416.60
7.4.260.0040.00416.46
7.4.250.0070.00016.53
7.4.240.0000.00716.59
7.4.230.0070.00016.53
7.4.220.0100.00916.52
7.4.210.0090.00416.60
7.4.200.0050.00316.39
7.4.190.0030.00316.67
7.4.160.0100.00616.45
7.4.150.0080.00817.40
7.4.140.0160.00317.86
7.4.130.0070.01016.48
7.4.120.0110.00516.57
7.4.110.0070.01016.39
7.4.100.0100.01016.42
7.4.90.0030.01316.48
7.4.80.0030.01319.39
7.4.70.0130.00916.51
7.4.60.0070.01016.59
7.4.50.0050.00016.11
7.4.40.0060.00622.77
7.4.30.0120.00416.46
7.4.00.0100.00815.02
7.3.330.0050.00013.16
7.3.320.0060.00012.99
7.3.310.0000.00716.30
7.3.300.0040.00416.24
7.3.290.0000.01416.34
7.3.280.0090.00616.24
7.3.270.0090.00917.40
7.3.260.0090.01516.43
7.3.250.0080.00816.25
7.3.240.0120.00616.33
7.3.230.0090.01216.39
7.3.210.0090.00916.29
7.3.200.0140.00319.39
7.3.190.0130.00316.14
7.3.180.0130.00316.43
7.3.170.0140.00316.27
7.3.160.0090.00616.33
7.3.120.0080.00814.66
7.3.110.0030.01014.94
7.3.100.0030.01214.51
7.3.90.0060.00914.63
7.3.80.0090.00614.75
7.3.70.0030.00614.84
7.3.60.0070.00714.73
7.3.50.0070.00714.69
7.3.40.0030.01014.87
7.3.30.0030.01214.74
7.3.20.0030.01416.56
7.3.10.0000.01716.64
7.3.00.0060.01016.75
7.2.330.0060.01516.66
7.2.320.0130.00616.52
7.2.310.0110.00516.49
7.2.300.0100.00716.73
7.2.290.0040.01516.34
7.2.250.0060.01214.97
7.2.240.0090.00915.18
7.2.230.0090.00614.96
7.2.220.0040.00714.99
7.2.210.0090.00615.13
7.2.200.0000.01414.70
7.2.190.0040.01115.14
7.2.180.0000.01314.62
7.2.170.0030.00614.95
7.2.00.0030.01019.41
7.1.330.0000.01415.89
7.1.320.0030.01015.88
7.1.310.0080.00615.54
7.1.300.0080.00815.55
7.1.290.0040.00815.76
7.1.280.0070.00715.79
7.1.270.0130.00315.66
7.1.260.0070.01015.55
7.1.100.0030.00617.70
7.1.70.0030.00717.20
7.1.60.0150.00919.82
7.1.50.0090.00317.01
7.1.00.0030.03722.46
7.0.200.0000.00716.84
7.0.140.0070.06721.95
7.0.60.0170.07719.82
7.0.50.0070.04717.90
7.0.40.0130.08020.22
7.0.30.0330.05720.21
7.0.20.0230.07320.04
7.0.10.0300.08020.30
7.0.00.0200.07320.00
5.6.280.0070.07020.99
5.6.210.0070.03720.51
5.6.200.0170.07318.16
5.6.190.0170.08020.45
5.6.180.0270.08020.64
5.6.170.0270.07320.71
5.6.160.0000.05720.49
5.6.150.0070.06718.22
5.6.140.0070.08318.07
5.6.130.0130.07018.11
5.6.120.0070.08321.12
5.6.110.0070.08721.03
5.6.100.0170.03321.12
5.6.90.0170.05321.12
5.6.80.0170.06720.50
5.6.70.4200.04020.36
5.5.350.0070.08020.43
5.5.340.0070.08017.88
5.5.330.0030.06720.46
5.5.320.0400.06020.17
5.5.310.0200.04320.30
5.5.300.0070.03317.92
5.5.290.0100.05318.00
5.5.280.0070.04720.84
5.5.270.0130.07720.71
5.5.260.0100.08020.89
5.5.250.0070.04020.55
5.5.240.0130.06320.15
5.4.450.0600.05719.57
5.4.440.0800.05719.11
5.4.430.0200.05019.54
5.4.420.0900.04719.48
5.4.410.1170.06719.39
5.4.400.0870.06019.29
5.4.390.0770.06018.81
5.4.380.0170.06318.72
5.4.370.0300.05318.63
5.4.360.0300.05318.64
5.4.350.0050.04211.97
5.4.340.0050.04011.97
5.4.320.0080.03512.45
5.4.310.0050.03912.45
5.4.300.0060.04512.45
5.4.290.0050.04112.45
5.4.280.0100.03212.35
5.4.270.0060.03612.34
5.4.260.0040.04512.35
5.4.250.0200.05318.83
5.4.240.0100.05018.74
5.4.230.0030.05718.69
5.4.220.0070.05718.89
5.4.210.0300.05318.89
5.4.200.0130.04718.73
5.4.190.0070.05018.98
5.4.180.0030.05318.88
5.4.170.0130.04318.83
5.4.160.0000.05718.86
5.4.150.0000.06018.75
5.4.140.0100.04316.48
5.4.130.0130.04316.38
5.4.120.0100.04316.26
5.4.110.0100.04716.36
5.4.100.0070.05016.52
5.4.90.0170.03716.42
5.4.80.0000.06016.43
5.4.70.0170.04016.42
5.4.60.0000.05316.23
5.4.50.0000.05316.47
5.4.40.0070.05316.45
5.4.30.0070.04716.45
5.4.20.0030.05016.32
5.4.10.0030.05316.16
5.4.00.0000.05315.93
5.3.290.0050.04212.80
5.3.280.0100.04714.48
5.3.270.0030.05314.30
5.3.260.0100.04714.60
5.3.250.0030.05314.65
5.3.240.0000.05314.62
5.3.230.0000.05314.61
5.3.220.0070.04714.26
5.3.210.0070.07014.66
5.3.200.0030.05714.43
5.3.190.0100.05014.45
5.3.180.0030.05314.57
5.3.170.0070.05014.43
5.3.160.0100.04714.50
5.3.150.0100.04314.43
5.3.140.0070.04714.64
5.3.130.0100.04714.25
5.3.120.0170.05714.32
5.3.110.0100.05014.41
5.3.100.0070.05014.02
5.3.90.0030.05013.87
5.3.80.0070.04713.93
5.3.70.0100.04313.91
5.3.60.0070.05713.99
5.3.50.0130.04013.99
5.3.40.0100.04313.96
5.3.30.0030.05013.91
5.3.20.0130.04313.53
5.3.10.0030.05313.56
5.3.00.0030.05013.57
5.2.170.0000.04311.14
5.2.160.0000.04311.18
5.2.150.0030.04011.16
5.2.140.0000.04711.02
5.2.130.0030.04011.21
5.2.120.0070.04311.10
5.2.110.0000.04311.11
5.2.100.0070.03310.93
5.2.90.0000.04311.19
5.2.80.0000.06011.00
5.2.70.0100.03711.02
5.2.60.0000.04311.08
5.2.50.0100.03310.85
5.2.40.0070.03710.88
5.2.30.0070.03711.12
5.2.20.0070.03710.97
5.2.10.0030.04010.86
5.2.00.0000.04310.48
5.1.60.0070.03010.23
5.1.50.0070.03010.22
5.1.40.0100.02710.02
5.1.30.0100.03010.31
5.1.20.0070.03310.57
5.1.10.0030.03310.21
5.1.00.0000.03710.00
5.0.50.0070.0238.57
5.0.40.0130.0178.46
5.0.30.0030.0408.13
5.0.20.0000.0308.16
5.0.10.0000.0308.23
5.0.00.0070.0378.22
4.4.90.0030.0206.25
4.4.80.0070.0236.25
4.4.70.0070.0176.25
4.4.60.0000.0236.25
4.4.50.0030.0206.25
4.4.40.0070.0276.25
4.4.30.0000.0236.25
4.4.20.0000.0236.25
4.4.10.0000.0236.25
4.4.00.0030.0336.25
4.3.110.0000.0236.25
4.3.100.0000.0236.25
4.3.90.0000.0206.25
4.3.80.0030.0306.25
4.3.70.0000.0206.25
4.3.60.0000.0236.25
4.3.50.0030.0206.25
4.3.40.0000.0336.25
4.3.30.0030.0206.25
4.3.20.0000.0236.25
4.3.10.0000.0236.25
4.3.00.0130.0277.54

preferences:
44.83 ms | 401 KiB | 5 Q