3v4l.org

run code in 300+ PHP versions simultaneously
<?php function & genRefInner() { $var = 1; yield $var; } function genRefOuter() { return genRefInner(); } foreach(genRefOuter() as &$i) { var_dump($i); }

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)
8.3.60.0070.01416.50
8.3.50.0130.00821.98
8.3.40.0000.01418.84
8.3.30.0130.00618.79
8.3.20.0040.00419.98
8.3.10.0050.00321.70
8.3.00.0000.00818.99
8.2.180.0100.01018.17
8.2.170.0070.01022.96
8.2.160.0030.01022.12
8.2.150.0040.00424.18
8.2.140.0120.00324.66
8.2.130.0030.01026.16
8.2.120.0000.00819.64
8.2.110.0070.00321.12
8.2.100.0060.00617.91
8.2.90.0000.00819.24
8.2.80.0030.00617.97
8.2.70.0060.00317.63
8.2.60.0060.00317.93
8.2.50.0070.00318.07
8.2.40.0000.00718.22
8.2.30.0080.00019.12
8.2.20.0050.00317.73
8.2.10.0050.00218.07
8.2.00.0040.00417.88
8.1.280.0120.00325.92
8.1.270.0040.00420.73
8.1.260.0070.00026.35
8.1.250.0000.00828.09
8.1.240.0030.00722.07
8.1.230.0110.00018.96
8.1.220.0050.00317.77
8.1.210.0080.00018.77
8.1.200.0050.01416.98
8.1.190.0090.00017.22
8.1.180.0050.00218.10
8.1.170.0080.00018.51
8.1.160.0070.00022.05
8.1.150.0030.00518.84
8.1.140.0050.00319.11
8.1.130.0070.00017.82
8.1.120.0040.00417.44
8.1.110.0070.00017.48
8.1.100.0000.00717.41
8.1.90.0070.00017.49
8.1.80.0040.00417.41
8.1.70.0000.00717.43
8.1.60.0030.00517.57
8.1.50.0030.00617.50
8.1.40.0090.00017.55
8.1.30.0040.00417.71
8.1.20.0080.00017.62
8.1.10.0040.00417.51
8.1.00.0040.00417.43
8.0.300.0000.00720.16
8.0.290.0070.00016.63
8.0.280.0070.00018.44
8.0.270.0070.00017.29
8.0.260.0050.00317.29
8.0.250.0040.00417.01
8.0.240.0080.00016.97
8.0.230.0040.00416.91
8.0.220.0000.00716.89
8.0.210.0060.00016.93
8.0.200.0060.00016.90
8.0.190.0000.00816.96
8.0.180.0040.00416.80
8.0.170.0040.00416.91
8.0.160.0000.00716.84
8.0.150.0040.00416.83
8.0.140.0060.00316.81
8.0.130.0030.00313.27
8.0.120.0050.00316.79
8.0.110.0040.00416.88
8.0.100.0070.00016.71
8.0.90.0000.00716.86
8.0.80.0030.01716.84
8.0.70.0000.00716.99
8.0.60.0040.00416.76
8.0.50.0080.00016.73
8.0.30.0160.00917.06
8.0.20.0100.01017.40
8.0.10.0000.00816.89
8.0.00.0100.00816.77
7.4.330.0050.00015.07
7.4.320.0000.00716.49
7.4.300.0030.00316.48
7.4.290.0000.00716.56
7.4.280.0040.00716.59
7.4.270.0030.00316.52
7.4.260.0030.00316.52
7.4.250.0040.00416.48
7.4.240.0040.00316.54
7.4.230.0070.00016.68
7.4.220.0070.01116.59
7.4.210.0100.00816.63
7.4.200.0080.00016.58
7.4.160.0060.00916.35
7.4.150.0130.00717.40
7.4.140.0160.00217.86
7.4.130.0060.01016.53
7.4.120.0090.00816.61
7.4.110.0060.01216.47
7.4.100.0100.01016.47
7.4.90.0060.00916.44
7.4.80.0080.00819.39
7.4.70.0110.00716.48
7.4.60.0100.00716.73
7.4.50.0030.00316.61
7.4.40.0100.01316.54
7.4.30.0030.01316.46
7.4.00.0070.01015.08
7.3.330.0000.00613.12
7.3.320.0030.00313.31
7.3.310.0000.00716.33
7.3.300.0070.00016.26
7.3.290.0000.00716.17
7.3.280.0090.00816.29
7.3.270.0100.01617.40
7.3.260.0140.00816.47
7.3.250.0080.00916.47
7.3.240.0080.00816.54
7.3.230.0030.01316.52
7.3.210.0170.00316.38
7.3.200.0000.01619.39
7.3.190.0030.01316.43
7.3.180.0060.01016.29
7.3.170.0120.00616.27
7.3.160.0150.00016.62
7.2.330.0100.01116.73
7.2.320.0090.00916.43
7.2.310.0060.01616.68
7.2.300.0120.00616.81
7.2.290.0000.01516.44
7.2.00.0040.00819.54
7.1.100.0040.00717.95
7.1.70.0000.00717.02
7.1.60.0170.00719.46
7.1.50.0160.00616.81
7.1.00.0070.07322.37
7.0.200.0000.00816.67
7.0.140.0070.05722.00
7.0.110.0030.06319.89
7.0.100.0000.04719.96
7.0.90.0070.06719.93
7.0.80.0100.07319.93
7.0.70.0070.05319.87
7.0.60.0070.03719.99
7.0.50.0030.03720.00
7.0.40.0100.05319.71
7.0.30.0000.09019.78
7.0.20.0030.08319.59
7.0.10.0030.04019.86
7.0.00.0130.06719.80
5.6.280.0000.07721.02
5.6.260.0030.04720.70
5.6.250.0100.07320.68
5.6.240.0030.04320.67
5.6.230.0070.06020.70
5.6.220.0000.05320.54
5.6.210.0030.04020.61
5.6.200.0000.05020.66
5.6.190.0030.04020.64
5.6.180.0000.04320.65
5.6.170.0070.07020.56
5.6.160.0030.07720.64
5.6.150.0000.09020.66
5.6.140.0130.07720.61
5.6.130.0030.04020.62
5.6.120.0100.06320.71
5.6.110.0030.07020.57
5.6.100.0030.04020.54
5.6.90.0100.07320.56
5.6.80.0200.06320.00
5.6.70.0000.07720.08
5.6.60.0030.07720.05
5.6.50.0070.07320.00
5.6.40.0100.07320.02
5.6.30.0130.07019.97
5.6.20.0130.07319.91
5.6.10.0130.08720.01
5.6.00.0200.06719.97
5.5.380.0030.08017.69
5.5.370.0100.07717.60
5.5.360.0030.08717.51
5.5.350.0100.06717.75
5.5.340.0070.03317.93
5.5.330.0030.05318.05
5.5.320.0030.05018.10
5.5.310.0100.07318.12
5.5.300.0100.03318.22
5.5.290.0000.08717.93
5.5.280.0030.08317.95
5.5.270.0030.04017.91
5.5.260.0000.06018.06
5.5.250.0030.07717.91
5.5.240.0030.08017.22
5.5.230.0100.06717.21
5.5.220.0130.06317.33
5.5.210.0100.06017.60
5.5.200.0070.03717.58
5.5.190.0070.07317.43
5.5.180.0130.06717.58
5.5.160.0130.06717.26
5.5.150.0100.07017.28
5.5.140.0100.06717.26
5.5.130.0200.03317.26
5.5.120.0070.04017.57
5.5.110.0100.06317.43
5.5.100.0070.04717.17
5.5.90.0130.07017.18
5.5.80.0100.04717.16
5.5.70.0030.04017.15
5.5.60.0000.04317.50
5.5.50.0000.03717.49
5.5.40.0130.05717.29
5.5.30.0000.05017.06
5.5.20.0070.05717.15
5.5.10.0000.06017.20
5.5.00.0070.04317.32
5.4.450.0000.07719.49
5.4.440.0000.04319.51
5.4.430.0070.08319.33
5.4.420.0070.08019.50
5.4.410.0070.07319.23
5.4.400.0070.06719.15
5.4.390.0100.08019.19
5.4.380.0030.04019.00
5.4.370.0000.07719.17
5.4.360.0130.06319.01
5.4.350.0030.08019.17
5.4.340.0030.07019.14
5.4.320.0070.08019.15
5.4.310.0070.07319.00
5.4.300.0130.06018.95
5.4.290.0130.07719.14
5.4.280.0030.07319.02
5.4.270.0070.06719.03
5.4.260.0100.07019.09
5.4.250.0170.07019.30
5.4.240.0030.06319.24
5.4.230.0070.08719.00
5.4.220.0070.05719.00
5.4.210.0070.04019.00
5.4.200.0070.07719.33
5.4.190.0070.03319.33
5.4.180.0030.04319.30
5.4.170.0030.06719.21
5.4.160.0030.07719.12
5.4.150.0000.04018.98
5.4.140.0030.06716.56
5.4.130.0070.03016.51
5.4.120.0000.05716.53
5.4.110.0030.03716.41
5.4.100.0100.05716.57
5.4.90.0030.03716.41
5.4.80.0030.07716.40
5.4.70.0070.05316.39
5.4.60.0100.06716.29
5.4.50.0070.07016.54
5.4.40.0030.04716.52
5.4.30.0070.06316.63
5.4.20.0070.07316.44
5.4.10.0130.07016.63
5.4.00.0000.03716.03
5.3.290.0170.07014.67
5.3.280.0100.06014.74
5.3.270.0070.03714.83
5.3.260.0030.04714.64
5.3.250.0100.02714.47
5.3.240.0070.06014.62
5.3.230.0030.03314.62
5.3.220.0000.04014.58
5.3.210.0070.05014.62
5.3.200.0000.07314.56
5.3.190.0100.07314.58
5.3.180.0070.06714.65
5.3.170.0100.04314.70
5.3.160.0030.03314.79
5.3.150.0000.04314.56
5.3.140.0030.07314.55
5.3.130.0000.04014.58
5.3.120.0030.03714.68
5.3.110.0070.07314.64
5.3.100.0070.05314.04
5.3.90.0030.06714.15
5.3.80.0030.07014.02
5.3.70.0030.03714.08
5.3.60.0100.02713.86
5.3.50.0000.07713.79
5.3.40.0070.07713.90
5.3.30.0000.04313.93
5.3.20.0100.05313.77
5.3.10.0030.05013.74
5.3.00.0130.06013.66
5.2.170.0070.06012.07
5.2.160.0030.03012.07
5.2.150.0030.05312.07
5.2.140.0000.06312.07
5.2.130.0030.03312.07
5.2.120.0070.02712.07
5.2.110.0070.03012.07
5.2.100.0000.03712.07
5.2.90.0100.05312.07
5.2.80.0000.05312.07
5.2.70.0130.04012.07
5.2.60.0070.05012.07
5.2.50.0030.04712.07
5.2.40.0000.06312.07
5.2.30.0100.04312.07
5.2.20.0070.04312.07
5.2.10.0100.04712.07
5.2.00.0070.04712.07
5.1.60.0070.04712.07
5.1.50.0030.05312.07
5.1.40.0030.03012.07
5.1.30.0100.03712.07
5.1.20.0000.03312.07
5.1.10.0030.03312.07
5.1.00.0100.05012.07
5.0.50.0070.03012.07
5.0.40.0070.02712.07
5.0.30.0000.07012.07
5.0.20.0000.02712.07
5.0.10.0000.04712.07
5.0.00.0000.05312.07
4.4.90.0130.00712.07
4.4.80.0000.01712.07
4.4.70.0000.02012.07
4.4.60.0030.01712.07
4.4.50.0030.03312.07
4.4.40.0070.04312.07
4.4.30.0030.02012.07
4.4.20.0030.02712.07
4.4.10.0000.02312.07
4.4.00.0030.05312.07
4.3.110.0000.02312.07
4.3.100.0070.02712.07
4.3.90.0030.01712.07
4.3.80.0000.05712.07
4.3.70.0000.02712.07
4.3.60.0000.02712.07
4.3.50.0070.01712.07
4.3.40.0000.04712.07
4.3.30.0000.02012.07
4.3.20.0000.03712.07
4.3.10.0000.03712.07
4.3.00.0000.02712.07

preferences:
49.85 ms | 401 KiB | 5 Q