3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &returnRef() { $foo = "foo"; return $foo; }

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)
8.3.70.0040.01218.30
8.3.60.0070.01016.49
8.3.50.0150.00721.21
8.3.40.0090.00618.54
8.3.30.0060.00918.46
8.3.20.0070.00021.82
8.3.10.0040.00420.23
8.3.00.0040.00421.78
8.2.180.0040.01816.75
8.2.170.0060.00922.96
8.2.160.0070.00719.33
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0040.00421.07
8.2.120.0040.00426.35
8.2.110.0090.00021.14
8.2.100.0050.00517.66
8.2.90.0060.00318.90
8.2.80.0060.00617.97
8.2.70.0000.00817.67
8.2.60.0000.00917.80
8.2.50.0040.00418.10
8.2.40.0050.00319.17
8.2.30.0000.00719.03
8.2.20.0000.00817.80
8.2.10.0040.00417.96
8.2.00.0070.00017.59
8.1.280.0100.01025.92
8.1.270.0070.00023.96
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0080.00023.92
8.1.230.0000.01120.70
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0040.00717.22
8.1.190.0000.00917.10
8.1.180.0080.00018.10
8.1.170.0000.00818.81
8.1.160.0070.00022.14
8.1.150.0000.00718.79
8.1.140.0050.00319.55
8.1.130.0030.00317.52
8.1.120.0000.00717.29
8.1.110.0070.00317.27
8.1.100.0030.00417.36
8.1.90.0000.00817.32
8.1.80.0040.00417.34
8.1.70.0000.00717.30
8.1.60.0060.00317.46
8.1.50.0080.00017.30
8.1.40.0040.00417.37
8.1.30.0030.00517.54
8.1.20.0000.00817.54
8.1.10.0080.00017.42
8.1.00.0040.00417.25
8.0.300.0080.00018.77
8.0.290.0070.00016.63
8.0.280.0000.00718.23
8.0.270.0050.00517.01
8.0.260.0030.00317.29
8.0.250.0070.00016.70
8.0.240.0040.00416.80
8.0.230.0030.00316.72
8.0.220.0000.00716.64
8.0.210.0070.00016.71
8.0.200.0030.00316.68
8.0.190.0040.00416.78
8.0.180.0040.00416.83
8.0.170.0050.00316.69
8.0.160.0000.00716.66
8.0.150.0080.00016.68
8.0.140.0070.00016.69
8.0.130.0050.00013.24
8.0.120.0050.00416.62
8.0.110.0030.00616.80
8.0.100.0040.00416.73
8.0.90.0050.00316.82
8.0.80.0040.01116.79
8.0.70.0040.00416.61
8.0.60.0050.00216.72
8.0.50.0040.00416.57
8.0.30.0170.00516.90
8.0.20.0120.00617.40
8.0.10.0040.00416.75
8.0.00.0130.00916.53
7.4.330.0000.00515.21
7.4.320.0000.00616.38
7.4.300.0000.00616.45
7.4.290.0000.00816.27
7.4.280.0000.00716.37
7.4.270.0060.00016.30
7.4.260.0000.00616.44
7.4.250.0030.00316.31
7.4.240.0040.00416.36
7.4.230.0070.00016.16
7.4.220.0060.01016.54
7.4.210.0060.00916.36
7.4.200.0000.00716.56
7.4.160.0120.00516.40
7.4.150.0060.01217.40
7.4.140.0080.00817.86
7.4.130.0130.00516.30
7.4.120.0110.00916.33
7.4.110.0110.00616.64
7.4.100.0130.00716.34
7.4.90.0030.01316.39
7.4.80.0040.01419.39
7.4.70.0080.01316.43
7.4.60.0120.00316.27
7.4.50.0030.01016.35
7.4.40.0040.01216.41
7.4.30.0070.01016.38
7.4.00.0070.00714.97
7.3.330.0000.00513.10
7.3.320.0050.00013.15
7.3.310.0040.00416.10
7.3.300.0000.00716.21
7.3.290.0120.00316.12
7.3.280.0100.00716.17
7.3.270.0160.00617.40
7.3.260.0050.01216.42
7.3.250.0050.01216.22
7.3.240.0100.00716.42
7.3.230.0050.01116.39
7.3.210.0110.00616.22
7.3.200.0090.00616.19
7.3.190.0110.01216.29
7.3.180.0110.00716.40
7.3.170.0080.01116.15
7.3.160.0030.01416.34
7.2.330.0110.00616.31
7.2.320.0120.00616.55
7.2.310.0110.00616.53
7.2.300.0100.01316.50
7.2.290.0100.00616.33
7.2.60.0000.01616.66
7.1.200.0110.00315.74
7.1.70.0030.01017.00
7.1.60.0070.00717.15
7.1.00.0100.07022.42
7.0.200.0100.00716.47
7.0.110.0330.07020.27
7.0.100.0270.06020.14
7.0.90.0330.07320.20
7.0.80.0400.06320.27
7.0.70.0470.07020.21
7.0.60.0400.07020.30
7.0.50.0300.06320.25
7.0.40.0330.05720.18
7.0.30.0470.05020.35
7.0.20.0430.06020.17
7.0.10.0270.06020.23
7.0.00.0300.06720.18
5.6.260.0170.05320.98
5.6.250.0100.06021.13
5.6.240.0170.05720.84
5.6.230.0270.04321.00
5.6.220.0130.07321.00
5.6.210.0070.08720.95
5.6.200.0130.06020.76
5.6.190.0230.07721.07
5.6.180.0070.06721.10
5.6.170.0070.06021.07
5.6.160.0100.05720.86
5.6.150.0070.06021.00
5.6.140.0070.06020.93
5.6.130.0070.05721.04
5.6.120.0130.07320.93
5.6.110.0130.06720.74
5.6.100.0130.05720.86
5.6.90.0030.06020.86
5.6.80.0070.05320.45
5.6.70.0030.05720.21
5.6.60.0100.05020.21
5.6.50.0170.04720.14
5.6.40.0070.05320.17
5.6.30.0070.05720.35
5.6.20.0230.07020.30
5.6.10.0130.07320.34
5.6.00.0170.07720.14

preferences:
56.81 ms | 401 KiB | 5 Q