3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = array(); $foo[] =& $foo; var_dump($foo === $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)
8.3.40.0040.01118.88
8.3.30.0100.00720.01
8.3.20.0040.00420.22
8.3.10.0080.00021.13
8.3.00.0040.00422.43
8.2.170.0170.00322.96
8.2.160.0120.00822.06
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0040.00420.87
8.2.110.0060.00319.06
8.2.100.0080.00417.84
8.2.90.0000.00719.10
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0030.00717.80
8.2.50.0080.00018.07
8.2.40.0000.00918.03
8.2.30.0040.00419.48
8.2.20.0030.00517.59
8.2.10.0040.00417.67
8.2.00.0060.00317.50
8.1.270.0030.00623.99
8.1.260.0050.00326.35
8.1.250.0000.00728.09
8.1.240.0060.00322.59
8.1.230.0000.01120.96
8.1.220.0060.00318.77
8.1.210.0040.00418.89
8.1.200.0060.00317.23
8.1.190.0090.00017.41
8.1.180.0000.00818.10
8.1.170.0040.00418.49
8.1.160.0070.00018.81
8.1.150.0000.00718.57
8.1.140.0040.00417.34
8.1.130.0000.00717.86
8.1.120.0050.00517.41
8.1.110.0070.00017.36
8.1.100.0040.00417.43
8.1.90.0000.00717.36
8.1.80.0030.00317.33
8.1.70.0030.00317.39
8.1.60.0030.00617.41
8.1.50.0040.00417.28
8.1.40.0000.00817.47
8.1.30.0070.00017.43
8.1.20.0000.00817.66
8.1.10.0040.00417.39
8.1.00.0040.00417.48
8.0.300.0000.00819.90
8.0.290.0070.00017.05
8.0.280.0030.00618.27
8.0.270.0080.00017.19
8.0.260.0000.00816.67
8.0.250.0000.00916.84
8.0.240.0060.00316.79
8.0.230.0070.00016.79
8.0.220.0030.00316.80
8.0.210.0000.00716.80
8.0.200.0000.00616.80
8.0.190.0030.00316.79
8.0.180.0000.00716.84
8.0.170.0030.00616.86
8.0.160.0030.00316.84
8.0.150.0030.00316.80
8.0.140.0030.00316.80
8.0.130.0050.00013.21
8.0.120.0000.00916.82
8.0.110.0000.00816.76
8.0.100.0040.00316.88
8.0.90.0000.00716.84
8.0.80.0090.01216.80
8.0.70.0000.00816.60
8.0.60.0000.00816.64
8.0.50.0000.00816.79
8.0.30.0090.01016.95
8.0.20.0090.01017.40
8.0.10.0040.00416.92
8.0.00.0120.00716.65
7.4.330.0000.00616.72
7.4.320.0030.00316.41
7.4.300.0060.00016.59
7.4.290.0050.00316.48
7.4.280.0030.00316.60
7.4.270.0040.00416.52
7.4.260.0000.00513.24
7.4.250.0000.00816.47
7.4.240.0040.00316.62
7.4.230.0040.00416.52
7.4.220.0140.00416.59
7.4.210.0080.00816.52
7.4.200.0000.00716.66
7.4.190.0030.00316.61
7.4.160.0100.00516.58
7.4.150.0060.01017.40
7.4.140.0100.01017.86
7.4.130.0070.01216.52
7.4.120.0090.00816.51
7.4.110.0090.00616.61
7.4.100.0160.00616.45
7.4.90.0130.00316.61
7.4.80.0250.00019.39
7.4.70.0090.00916.42
7.4.60.0080.00816.44
7.4.50.0040.00416.29
7.4.40.0100.00622.77
7.4.30.0100.01016.50
7.4.00.0040.01114.94
7.3.330.0050.00013.04
7.3.320.0000.00713.03
7.3.310.0000.00716.32
7.3.300.0000.00716.10
7.3.290.0040.01016.17
7.3.280.0070.01116.23
7.3.270.0030.01317.40
7.3.260.0110.01118.24
7.3.250.0080.00916.43
7.3.240.0060.01216.50
7.3.230.0160.00016.39
7.3.210.0030.01216.25
7.3.200.0150.00319.39
7.3.190.0180.00016.45
7.3.180.0080.01316.56
7.3.170.0060.00916.49
7.3.160.0060.00916.36
7.3.120.0100.00714.82
7.3.110.0150.00414.79
7.3.100.0100.00314.87
7.3.90.0090.00914.84
7.3.80.0040.00814.55
7.3.70.0030.01014.70
7.3.60.0060.00814.58
7.3.50.0090.00614.81
7.3.40.0030.00714.77
7.3.30.0090.00014.71
7.3.20.0090.00616.39
7.3.10.0050.00716.65
7.3.00.0100.00316.43
7.2.330.0150.00416.49
7.2.320.0060.01016.32
7.2.310.0180.00616.59
7.2.300.0070.01016.37
7.2.290.0100.00616.47
7.2.240.0080.00814.48
7.2.230.0040.01214.77
7.2.220.0070.00714.99
7.2.210.0060.00915.06
7.2.200.0000.01215.02
7.2.190.0030.01214.75
7.2.180.0030.00615.04
7.2.170.0080.00814.79
7.2.160.0030.00714.94
7.2.150.0060.00916.84
7.2.140.0060.00917.00
7.2.130.0060.00716.55
7.2.120.0090.00616.86
7.2.110.0020.01416.87
7.2.100.0050.00916.79
7.2.90.0050.00716.77
7.2.80.0070.00316.91
7.2.70.0050.00716.99
7.2.60.0030.00916.81
7.2.50.0050.00816.79
7.2.40.0020.00816.93
7.2.30.0020.01216.83
7.2.20.0050.00916.74
7.2.10.0050.00816.82
7.2.00.0050.00916.86
7.1.330.0070.01015.62
7.1.320.0030.00815.33
7.1.310.0090.00615.72
7.1.300.0030.00715.87
7.1.290.0040.00415.95
7.1.280.0030.01015.88
7.1.270.0000.01215.59
7.1.260.0040.00815.80
7.1.250.0040.01115.43
7.1.70.0070.01416.86
7.1.60.0130.01019.17
7.1.50.0100.01317.14
7.1.00.0000.03722.33
7.0.200.0000.01016.51
7.0.140.0070.07321.95
7.0.90.0130.08319.84
7.0.80.0130.07019.95
7.0.70.0200.04719.92
7.0.60.0100.04320.02
7.0.50.0100.05020.25
7.0.40.0070.07720.05
7.0.30.0100.08019.98
7.0.20.0070.07720.04
7.0.10.0100.08020.14
7.0.00.0000.08320.11
5.6.280.0030.07321.11
5.6.230.0130.08020.74
5.6.220.0070.08020.55
5.6.210.0100.04720.77
5.6.200.0070.08321.05
5.6.190.0100.08321.04
5.6.180.0030.06721.04
5.6.170.0070.05021.04
5.6.160.0070.08021.05
5.6.150.0270.06321.07
5.6.140.0130.08021.05
5.6.130.0100.07721.07
5.6.120.0100.08021.09
5.6.110.0100.04020.92
5.6.100.0000.08721.02
5.6.90.0100.08321.03
5.6.80.0070.07020.42
5.6.70.0070.08720.43
5.6.60.0070.07320.39
5.6.50.0030.06720.38
5.6.40.0070.05020.39
5.6.30.0100.06320.39
5.6.20.0030.08320.30
5.6.10.0030.04020.48
5.6.00.0070.03720.38
5.5.370.0070.04720.56
5.5.360.0070.04720.33
5.5.350.0070.08020.41
5.5.340.0300.06020.75
5.5.330.0030.05320.80
5.5.320.0130.08020.88
5.5.310.0100.07720.82
5.5.300.0100.07320.82
5.5.290.0170.07320.88
5.5.280.0200.07020.79
5.5.270.0100.05320.78
5.5.260.0130.06020.87
5.5.250.0030.08320.68
5.5.240.0100.07720.20
5.5.230.0170.07320.22
5.5.220.0070.08020.23
5.5.210.0030.05720.10
5.5.200.0070.07320.21
5.5.190.0030.08320.14
5.5.180.0130.03720.23
5.5.160.0100.05020.08
5.5.150.0070.06020.10
5.5.140.0100.06320.23
5.5.130.0070.04720.16
5.5.120.0030.08020.25
5.5.110.0030.05320.13
5.5.100.0030.07720.09
5.5.90.0130.06320.06
5.5.80.0070.08320.05
5.5.70.0100.06720.08
5.5.60.0070.07720.11
5.5.50.0030.06020.02
5.5.40.0130.06720.09
5.5.30.0070.04320.13
5.5.20.0030.06320.14
5.5.10.0070.04020.03
5.5.00.0030.05020.04
5.4.450.0100.06319.23
5.4.440.0030.07319.38
5.4.430.0130.07719.26
5.4.420.0030.08719.39
5.4.410.0030.05719.34
5.4.400.0130.06319.13
5.4.390.0100.04718.79
5.4.380.0100.08018.81
5.4.370.0100.07319.12
5.4.360.0030.04718.79
5.4.350.0130.07319.14
5.4.340.0070.04319.03
5.4.320.0030.08319.13
5.4.310.0100.05718.95
5.4.300.0030.06319.09
5.4.290.0030.04719.12
5.4.280.0130.06019.02
5.4.270.0070.07318.96
5.4.260.0070.07019.14
5.4.250.0030.05319.04
5.4.240.0100.07318.97
5.4.230.0000.05319.02
5.4.220.0070.04719.05
5.4.210.0070.04319.13
5.4.200.0070.03719.22
5.4.190.0100.04319.06
5.4.180.0030.04719.22
5.4.170.0070.07719.02
5.4.160.0030.04018.95
5.4.150.0030.04018.88
5.4.140.0070.04316.37
5.4.130.0200.06016.36
5.4.120.0030.07316.28
5.4.110.0030.07316.33
5.4.100.0100.06716.22
5.4.90.0100.06716.27
5.4.80.0100.06716.19
5.4.70.0030.05716.24
5.4.60.0100.06016.20
5.4.50.0070.03316.23
5.4.40.0070.06716.24
5.4.30.0000.06016.41
5.4.20.0130.07316.20
5.4.10.0100.03316.18
5.4.00.0070.04715.81
5.3.290.0070.08014.65
5.3.280.0130.07314.60
5.3.270.0000.07714.46
5.3.260.0070.07014.43
5.3.250.0100.07014.55
5.3.240.0070.05314.59
5.3.230.0070.07714.55
5.3.220.0070.07014.51
5.3.210.0000.08314.57
5.3.200.0130.05714.55
5.3.190.0100.07314.52
5.3.180.0030.07014.39
5.3.170.0100.03014.41
5.3.160.0000.08014.50
5.3.150.0100.07014.41
5.3.140.0100.07014.53
5.3.130.0070.06314.53
5.3.120.0070.07314.40
5.3.110.0130.06714.48
5.3.100.0100.06713.89
5.3.90.0100.06713.92
5.3.80.0100.05313.87
5.3.70.0070.07313.87
5.3.60.0030.06013.97
5.3.50.0130.04013.90
5.3.40.0130.05313.82
5.3.30.0100.03713.88
5.3.20.0070.06713.82
5.3.10.0000.04313.82
5.3.00.0000.07013.82
5.2.170.0000.03713.82
5.2.160.0130.04013.82
5.2.150.0030.05313.82
5.2.140.0070.04713.82
5.2.130.0030.03013.82
5.2.120.0030.03013.82
5.2.110.0000.03713.82
5.2.100.0000.03713.82
5.2.90.0100.05713.82
5.2.80.0070.03313.82
5.2.70.0100.04313.82
5.2.60.0030.05013.82
5.2.50.0070.05013.82
5.2.40.0070.04313.82
5.2.30.0030.06313.82
5.2.20.0000.06313.82
5.2.10.0000.04313.82
5.2.00.0000.03713.82
5.1.60.0030.03313.82
5.1.50.0030.05713.82
5.1.40.0000.05713.82
5.1.30.0000.04713.82
5.1.20.0100.03013.82
5.1.10.0170.04313.82
5.1.00.0000.04713.82
5.0.50.0070.04313.82
5.0.40.0070.03313.82
5.0.30.0000.07013.82
5.0.20.0000.03713.82
5.0.10.0000.02313.82
5.0.00.0030.03313.82
4.4.90.0000.03713.82
4.4.80.0030.01713.82
4.4.70.0000.03713.82
4.4.60.0030.03313.82
4.4.50.0000.03713.82
4.4.40.0030.05313.82
4.4.30.0030.03713.82
4.4.20.0000.04013.82
4.4.10.0030.03313.82
4.4.00.0070.02313.82
4.3.110.0070.03013.82
4.3.100.0030.02013.82
4.3.90.0000.02013.82
4.3.80.0000.04313.82
4.3.70.0100.01013.82
4.3.60.0000.02013.82
4.3.50.0030.01713.82
4.3.40.0000.05313.82
4.3.30.0000.04013.82
4.3.20.0030.03313.82
4.3.10.0000.03313.82
4.3.00.0000.01713.82

preferences:
46.47 ms | 400 KiB | 5 Q