3v4l.org

run code in 300+ PHP versions simultaneously
<?php function &x(&$y) { return $y; } $x = '123'; var_dump(x($x));

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)
8.3.40.0120.00318.63
8.3.30.0120.00618.79
8.3.20.0040.00420.27
8.3.10.0080.00022.15
8.3.00.0040.00422.45
8.2.170.0110.01122.96
8.2.160.0070.01120.66
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0040.00417.63
8.2.110.0100.00022.11
8.2.100.0100.00017.72
8.2.90.0050.00319.28
8.2.80.0000.00917.97
8.2.70.0030.00717.50
8.2.60.0000.00917.93
8.2.50.0040.00418.07
8.2.40.0050.00318.22
8.2.30.0000.00717.99
8.2.20.0050.00317.50
8.2.10.0040.00417.65
8.2.00.0000.00717.72
8.1.270.0040.00423.83
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0040.00423.69
8.1.230.0080.00419.05
8.1.220.0040.00417.74
8.1.210.0030.00618.77
8.1.200.0030.00617.23
8.1.190.0040.00417.55
8.1.180.0030.00618.10
8.1.170.0000.00818.57
8.1.160.0070.00021.93
8.1.150.0000.00718.61
8.1.140.0040.00417.42
8.1.130.0050.00317.86
8.1.120.0000.00717.45
8.1.110.0040.00417.36
8.1.100.0040.00417.40
8.1.90.0000.00717.43
8.1.80.0040.00417.38
8.1.70.0000.00717.36
8.1.60.0030.00617.55
8.1.50.0070.00017.54
8.1.40.0040.00417.52
8.1.30.0050.00317.46
8.1.20.0040.00417.63
8.1.10.0050.00317.50
8.1.00.0000.00717.45
8.0.300.0040.00418.77
8.0.290.0040.00417.18
8.0.280.0040.00418.36
8.0.270.0050.00317.11
8.0.260.0030.00316.74
8.0.250.0030.00316.78
8.0.240.0040.00416.86
8.0.230.0000.00716.74
8.0.220.0040.00416.84
8.0.210.0000.00616.73
8.0.200.0030.00316.86
8.0.190.0040.00416.77
8.0.180.0050.00316.83
8.0.170.0040.00416.71
8.0.160.0070.00016.81
8.0.150.0000.00716.80
8.0.140.0000.00716.80
8.0.130.0030.00313.33
8.0.120.0070.00016.77
8.0.110.0040.00416.80
8.0.100.0030.00316.85
8.0.90.0000.00716.61
8.0.80.0130.00616.82
8.0.70.0070.00016.75
8.0.60.0040.00416.66
8.0.50.0030.00316.82
8.0.30.0080.01216.96
8.0.20.0070.01217.40
8.0.10.0050.00216.84
8.0.00.0100.00716.67
7.4.330.0060.00015.00
7.4.320.0030.00316.50
7.4.300.0030.00316.58
7.4.290.0030.00316.58
7.4.280.0000.00616.44
7.4.270.0070.00016.49
7.4.260.0090.00016.48
7.4.250.0000.00716.46
7.4.240.0020.00516.55
7.4.230.0030.00316.40
7.4.220.0090.00916.57
7.4.210.0100.00616.52
7.4.200.0050.00216.68
7.4.190.0070.00016.75
7.4.160.0060.00916.30
7.4.150.0060.01217.40
7.4.140.0110.00917.86
7.4.130.0120.00616.33
7.4.120.0180.00516.41
7.4.110.0080.01616.36
7.4.100.0100.01416.45
7.4.90.0060.01216.51
7.4.80.0070.01116.32
7.4.70.0100.00616.35
7.4.60.0060.00916.35
7.4.50.0040.00016.27
7.4.40.0070.00722.77
7.4.30.0130.00316.37
7.4.00.0090.00314.96
7.3.330.0000.00613.08
7.3.320.0020.00213.19
7.3.310.0000.00616.22
7.3.300.0050.00316.10
7.3.290.0060.00816.16
7.3.280.0070.01116.22
7.3.270.0100.00617.40
7.3.260.0140.00716.48
7.3.250.0150.00516.42
7.3.240.0060.01116.47
7.3.230.0090.00916.39
7.3.210.0070.01016.52
7.3.200.0070.01019.39
7.3.190.0080.01216.60
7.3.180.0100.00716.22
7.3.170.0060.01016.27
7.3.160.0060.00916.40
7.3.120.0090.00614.84
7.3.110.0000.01514.91
7.3.100.0120.00614.91
7.3.90.0070.00715.02
7.3.80.0060.00614.99
7.3.70.0060.01014.72
7.3.60.0000.01414.55
7.3.50.0120.00314.67
7.3.40.0040.01214.84
7.3.30.0070.00714.88
7.3.20.0040.01116.72
7.3.10.0100.00316.67
7.3.00.0170.00016.36
7.2.330.0100.01016.64
7.2.320.0100.00716.42
7.2.310.0030.01516.33
7.2.300.0130.00316.36
7.2.290.0060.01116.40
7.2.240.0060.00915.01
7.2.230.0070.00715.10
7.2.220.0060.00914.73
7.2.210.0090.00914.64
7.2.200.0070.00714.88
7.2.190.0030.00914.63
7.2.180.0060.01214.63
7.2.170.0030.01314.96
7.2.160.0030.01415.02
7.2.150.0060.01016.82
7.2.140.0070.01016.89
7.2.130.0030.01016.90
7.2.120.0030.01416.79
7.2.110.0070.01016.78
7.2.100.0100.00716.88
7.2.90.0070.01016.53
7.2.80.0070.01116.84
7.2.70.0080.00816.70
7.2.60.0040.00916.67
7.2.50.0090.00616.87
7.2.40.0090.00616.80
7.2.30.0070.01116.78
7.2.20.0030.01316.70
7.2.10.0100.00316.81
7.2.00.0050.00817.94
7.1.330.0070.00715.77
7.1.320.0070.00315.89
7.1.310.0060.00315.43
7.1.300.0070.00715.89
7.1.290.0070.00415.80
7.1.280.0060.00615.53
7.1.270.0030.01315.73
7.1.260.0070.01015.76
7.1.250.0070.00315.85
7.1.200.0070.00315.56
7.1.100.0000.01118.03
7.1.70.0030.01017.16
7.1.60.0100.01619.82
7.1.50.0220.00334.65
7.1.00.0000.08022.33
7.0.200.0030.00716.66
7.0.140.0000.07722.15
7.0.90.0500.07719.88
7.0.80.0570.08019.93
7.0.70.0530.07019.93
7.0.60.0300.09019.91
7.0.50.0530.08720.35
7.0.40.0000.05320.00
7.0.30.0100.05020.11
7.0.20.0130.03720.13
7.0.10.0170.07720.11
7.0.00.0100.06720.13
5.6.280.0030.07321.07
5.6.230.0030.07320.71
5.6.220.0070.04020.68
5.6.210.0130.07020.77
5.6.200.0100.08020.94
5.6.190.0100.04021.10
5.6.180.0130.03721.11
5.6.170.0070.04321.06
5.6.160.0070.08020.95
5.6.150.0100.08020.96
5.6.140.0000.05021.13
5.6.130.0070.04721.02
5.6.120.0070.04021.08
5.6.110.0030.04720.95
5.6.100.0070.08720.95
5.6.90.0070.04020.94
5.6.80.0100.07720.41
5.6.70.0100.05720.46
5.6.60.0070.07720.44
5.6.50.0030.05320.41
5.6.40.0070.05020.53
5.6.30.0030.04720.37
5.6.20.0000.06320.41
5.6.10.0070.04020.39
5.6.00.0070.07720.28
5.5.370.0130.05720.41
5.5.360.0030.08020.56
5.5.350.0030.06720.46
5.5.340.0030.09020.73
5.5.330.0200.06720.84
5.5.320.0070.05020.86
5.5.310.0100.07720.73
5.5.300.0070.05020.92
5.5.290.0200.08020.73
5.5.280.0030.04320.82
5.5.270.0100.05020.73
5.5.260.0100.06320.63
5.5.250.0070.06320.61
5.5.240.0030.05020.14
5.5.230.0130.07020.23
5.5.220.0030.08320.15
5.5.210.0070.08020.30
5.5.200.0100.08020.22
5.5.190.0000.04320.27
5.5.180.0070.04020.26
5.5.160.0030.05320.21
5.5.150.0030.05020.27
5.5.140.0100.07320.23
5.5.130.0100.05020.21
5.5.120.0070.04720.11
5.5.110.0070.07020.17
5.5.100.0000.04720.16
5.5.90.0030.05320.03
5.5.80.0100.04320.15
5.5.70.0030.06320.06
5.5.60.0100.07020.09
5.5.50.0070.08019.96
5.5.40.0100.06720.16
5.5.30.0030.04320.13
5.5.20.0000.05720.00
5.5.10.0070.06320.07
5.5.00.0030.04019.97
5.4.450.0070.06019.36
5.4.440.0100.05319.37
5.4.430.0070.04719.35
5.4.420.0100.05319.55
5.4.410.0030.04019.04
5.4.400.0170.06319.03
5.4.390.0130.03319.00
5.4.380.0000.06719.18
5.4.370.0030.06319.18
5.4.360.0100.07019.16
5.4.350.0030.05018.96
5.4.340.0100.05019.04
5.4.320.0030.07319.05
5.4.310.0170.06719.09
5.4.300.0170.04019.20
5.4.290.0030.07318.87
5.4.280.0030.05719.09
5.4.270.0100.03719.03
5.4.260.0070.04318.95
5.4.250.0070.07019.02
5.4.240.0030.06719.12
5.4.230.0100.07318.89
5.4.220.0100.06018.86
5.4.210.0130.06319.17
5.4.200.0130.03719.17
5.4.190.0070.04719.02
5.4.180.0070.05318.84
5.4.170.0030.04719.13
5.4.160.0170.06319.01
5.4.150.0070.05319.01
5.4.140.0030.07716.42
5.4.130.0030.05316.34
5.4.120.0030.07716.45
5.4.110.0070.07316.36
5.4.100.0030.07716.51
5.4.90.0030.07316.32
5.4.80.0030.04016.49
5.4.70.0030.05716.44
5.4.60.0030.05316.36
5.4.50.0070.04716.39
5.4.40.0130.06716.35
5.4.30.0030.07016.39
5.4.20.0000.05716.38
5.4.10.0100.07316.43
5.4.00.0070.06315.85
5.3.290.0000.05314.69
5.3.280.0070.05014.69
5.3.270.0030.07714.66
5.3.260.0030.07314.73
5.3.250.0070.07714.68
5.3.240.0030.05714.57
5.3.230.0200.05314.71
5.3.220.0030.07314.50
5.3.210.0030.05714.62
5.3.200.0070.07314.58
5.3.190.0030.06314.62
5.3.180.0070.04714.55
5.3.170.0000.06314.55
5.3.160.0130.06714.68
5.3.150.0070.07014.65
5.3.140.0170.04714.66
5.3.130.0030.06014.60
5.3.120.0070.05314.65
5.3.110.0070.03714.47
5.3.100.0030.05713.93
5.3.90.0100.07014.07
5.3.80.0030.04713.93
5.3.70.0000.04314.13
5.3.60.0130.05313.89
5.3.50.0030.05013.84
5.3.40.0130.04713.95
5.3.30.0030.05313.95
5.3.20.0030.07713.80
5.3.10.0070.07313.80
5.3.00.0200.04713.80
5.2.170.0070.04313.80
5.2.160.0070.05713.80
5.2.150.0070.06013.80
5.2.140.0100.06013.80
5.2.130.0170.03313.80
5.2.120.0070.04013.80
5.2.110.0070.03313.80
5.2.100.0030.06313.80
5.2.90.0000.06313.80
5.2.80.0070.06313.80
5.2.70.0030.06313.80
5.2.60.0030.06013.80
5.2.50.0070.04013.80
5.2.40.0030.03313.80
5.2.30.0100.05713.80
5.2.20.0000.03713.80
5.2.10.0070.02313.80
5.2.00.0030.03013.80
5.1.60.0000.03313.80
5.1.50.0000.03013.80
5.1.40.0030.02313.80
5.1.30.0030.02313.80
5.1.20.0000.02713.80
5.1.10.0100.02713.80
5.1.00.0000.03013.80
5.0.50.0070.02013.80
5.0.40.0000.02013.80
5.0.30.0000.03013.80
5.0.20.0030.01713.80
5.0.10.0000.02013.80
5.0.00.0000.03313.80
4.4.90.0030.03713.80
4.4.80.0030.02713.80
4.4.70.0070.02013.80
4.4.60.0000.02713.80
4.4.50.0030.02013.80
4.4.40.0000.02313.80
4.4.30.0030.02013.80
4.4.20.0000.01713.80
4.4.10.0070.01013.80
4.4.00.0000.02713.80
4.3.110.0030.01313.80
4.3.100.0030.01313.80
4.3.90.0030.01313.80
4.3.80.0000.02313.80
4.3.70.0000.01313.80
4.3.60.0030.01713.80
4.3.50.0030.01013.80
4.3.40.0000.02313.80
4.3.30.0000.02313.80
4.3.20.0030.01313.80
4.3.10.0030.02313.80
4.3.00.0000.02313.80

preferences:
40.45 ms | 400 KiB | 5 Q