3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array(); $foo = 3; $test[] = &$foo; var_dump($test);

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)
8.3.60.0120.00318.43
8.3.50.0070.01021.15
8.3.40.0090.00618.56
8.3.30.0090.00618.58
8.3.20.0080.00018.52
8.3.10.0040.00420.36
8.3.00.0050.00319.13
8.2.180.0070.01416.48
8.2.170.0100.00322.96
8.2.160.0100.00322.26
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00019.77
8.2.110.0030.00621.05
8.2.100.0080.00317.72
8.2.90.0000.00819.08
8.2.80.0000.00817.97
8.2.70.0080.00017.50
8.2.60.0040.00417.78
8.2.50.0060.00318.07
8.2.40.0000.00818.28
8.2.30.0040.00418.03
8.2.20.0070.00017.59
8.2.10.0040.00417.61
8.2.00.0000.00817.66
8.1.280.0070.01025.92
8.1.270.0070.00023.99
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0030.00622.40
8.1.230.0110.00020.91
8.1.220.0060.00318.77
8.1.210.0040.00718.77
8.1.200.0030.00617.35
8.1.190.0040.00417.41
8.1.180.0080.00018.10
8.1.170.0000.00818.71
8.1.160.0040.00418.82
8.1.150.0000.00718.48
8.1.140.0020.00517.41
8.1.130.0000.00717.80
8.1.120.0050.00317.38
8.1.110.0040.00417.28
8.1.100.0000.01017.42
8.1.90.0070.00017.27
8.1.80.0040.00417.35
8.1.70.0000.00717.34
8.1.60.0030.00517.54
8.1.50.0030.00617.43
8.1.40.0000.00717.41
8.1.30.0000.00717.58
8.1.20.0000.00817.63
8.1.10.0050.00317.40
8.1.00.0040.00417.38
8.0.300.0000.00719.85
8.0.290.0040.00416.63
8.0.280.0070.00018.38
8.0.270.0070.00017.23
8.0.260.0030.00316.70
8.0.250.0040.00416.89
8.0.240.0070.00016.82
8.0.230.0000.00716.84
8.0.220.0030.00316.77
8.0.210.0000.00716.77
8.0.200.0030.00316.84
8.0.190.0000.00716.82
8.0.180.0000.00716.80
8.0.170.0080.00316.80
8.0.160.0040.00416.80
8.0.150.0040.00416.84
8.0.140.0080.00016.81
8.0.130.0000.00513.22
8.0.120.0000.00716.73
8.0.110.0000.00716.71
8.0.100.0000.00716.88
8.0.90.0070.00016.81
8.0.80.0000.01516.80
8.0.70.0040.00416.61
8.0.60.0040.00416.82
8.0.50.0030.00516.67
8.0.30.0150.00616.75
8.0.20.0110.00717.40
8.0.10.0000.00716.79
8.0.00.0080.01016.55
7.4.330.0000.00513.43
7.4.320.0030.00316.35
7.4.300.0000.00716.53
7.4.290.0030.00316.50
7.4.280.0000.00716.48
7.4.270.0000.00716.45
7.4.260.0000.00513.20
7.4.250.0050.00316.54
7.4.240.0070.00016.52
7.4.230.0000.00716.62
7.4.220.0130.01016.37
7.4.210.0070.00716.51
7.4.200.0070.00016.62
7.4.190.0040.00416.52
7.4.160.0070.01416.37
7.4.150.0110.00617.40
7.4.140.0090.00817.14
7.4.130.0090.01216.39
7.4.120.0060.01216.44
7.4.110.0140.00316.44
7.4.100.0070.01116.41
7.4.90.0080.00816.36
7.4.80.0030.01319.03
7.4.70.0060.01216.50
7.4.60.0130.00316.45
7.4.50.0020.00216.40
7.4.40.0120.00622.27
7.4.30.0150.00316.30
7.4.00.0090.00614.86
7.3.330.0030.00313.17
7.3.320.0000.00513.10
7.3.310.0000.00716.20
7.3.300.0030.00316.19
7.3.290.0100.00316.18
7.3.280.0070.01016.20
7.3.270.0090.00617.40
7.3.260.0050.01218.24
7.3.250.0110.01216.22
7.3.240.0070.01016.24
7.3.230.0160.00016.39
7.3.210.0090.00916.52
7.3.200.0000.01819.39
7.3.190.0160.00916.26
7.3.180.0080.00816.32
7.3.170.0100.00616.27
7.3.160.0180.00316.35
7.3.120.0030.01314.61
7.3.10.0130.00016.55
7.3.00.0030.00616.38
7.2.330.0110.01116.60
7.2.320.0130.00316.50
7.2.310.0060.01216.52
7.2.300.0090.00616.24
7.2.290.0100.00716.32
7.2.130.0030.00716.75
7.2.120.0080.00416.83
7.2.110.0060.00316.56
7.2.100.0070.00316.74
7.2.90.0100.00316.91
7.2.80.0060.00616.87
7.2.70.0040.00816.84
7.2.60.0050.00516.84
7.2.50.0060.00316.86
7.2.40.0030.01016.91
7.2.30.0000.01116.78
7.2.20.0080.00416.50
7.2.10.0030.00916.73
7.2.00.0060.00316.79
7.1.250.0040.01115.73
7.1.100.0000.01018.08
7.1.70.0000.01116.85
7.1.60.0120.01219.40
7.1.50.0100.01016.96
7.1.00.0000.07722.30
7.0.200.0310.00014.57
7.0.140.0030.07321.95
7.0.60.0200.07020.06
7.0.50.0100.08017.80
7.0.40.4200.04320.00
7.0.30.3600.03320.02
7.0.20.3230.04720.12
7.0.10.3670.04020.00
7.0.00.3430.04320.16
5.6.210.0100.08020.66
5.6.200.0030.06018.19
5.6.190.3970.04020.50
5.6.180.3470.04720.47
5.6.170.3270.04020.49
5.6.160.4100.04720.42
5.6.150.3970.04020.37
5.6.140.3470.04720.21
5.6.130.3170.03320.46
5.6.120.1100.04320.39
5.6.110.0030.05020.23
5.6.100.3530.04020.23
5.6.90.3570.04320.14
5.6.80.3800.04719.59
5.6.70.3330.03319.75
5.6.60.3300.04019.73
5.6.50.3270.04319.64
5.6.40.3170.04719.66
5.6.30.3700.04319.66
5.6.20.3770.04019.70
5.6.10.4230.04319.74
5.6.00.3970.04019.56
5.5.350.4030.03720.52
5.5.340.0030.07017.97
5.5.330.1530.07020.20
5.5.320.3500.04720.13
5.5.310.3230.04720.20
5.5.300.3570.04020.15
5.5.290.3330.04020.00
5.5.280.0100.07320.17
5.5.270.0030.07020.08
5.5.260.3770.04720.00
5.5.250.4200.03719.99
5.5.240.3300.04019.40
5.5.230.3470.03719.42
5.5.220.3400.04019.38
5.5.210.3970.04019.46
5.5.200.3300.03719.40
5.5.190.3600.04319.53
5.5.180.3470.04319.50
5.5.160.3530.04019.44
5.5.150.3700.04319.39
5.5.140.3630.03719.36
5.5.130.3700.03719.42
5.5.120.3430.04019.36
5.5.110.3530.04019.52
5.5.100.3470.04019.52
5.5.90.3870.04019.29
5.5.80.4270.03719.27
5.5.70.4070.04319.37
5.5.60.3370.04319.36
5.5.50.3630.04019.28
5.5.40.3370.04319.32
5.5.30.3470.03719.26
5.5.20.3570.04019.30
5.5.10.1330.04319.34
5.5.00.0830.07719.27
5.4.450.3270.04019.46
5.4.440.0030.04319.32
5.4.430.1200.03719.31
5.4.420.4070.04319.27
5.4.410.3830.03719.18
5.4.400.3400.03718.96
5.4.390.3000.03018.83
5.4.380.3330.03319.20
5.4.370.3330.03719.09
5.4.360.3070.03319.05
5.4.350.3400.03019.10
5.4.340.3500.04019.10
5.4.320.3600.04018.89
5.4.310.3530.03718.99
5.4.300.3970.03719.07
5.4.290.3470.03319.13
5.4.280.3270.04018.95
5.4.270.3470.03719.00
5.4.260.3430.03019.04
5.4.250.3630.04019.09
5.4.240.4300.03318.82
5.4.230.4300.03719.01
5.4.220.3530.04019.01
5.4.210.3830.03719.02
5.4.200.3470.03718.97
5.4.190.3470.03019.20
5.4.180.3670.04019.12
5.4.170.0070.06718.98
5.4.160.4230.04319.19
5.4.150.4430.05019.22
5.4.140.3270.03316.26
5.4.130.3600.03016.33
5.4.120.3570.03316.17
5.4.110.3500.04016.43
5.4.100.4030.03716.28
5.4.90.4200.03716.24
5.4.80.3500.03016.32
5.4.70.0830.04316.32
5.4.60.0000.04716.51
5.4.50.4170.03716.25
5.4.40.4230.03316.28
5.4.30.4200.03716.25
5.4.20.4430.03016.23
5.4.10.3830.03316.14
5.4.00.4200.03315.75
5.3.290.3930.03314.58
5.3.280.3870.03314.51
5.3.270.0030.07014.56
5.3.260.4300.03314.68
5.3.250.3570.03014.46
5.3.240.3600.04014.57
5.3.230.3770.03714.51
5.3.220.3130.04014.50
5.3.210.3670.04014.64
5.3.200.4000.03314.55
5.3.190.4400.04314.66
5.3.180.4300.03014.64
5.3.170.4130.03714.38
5.3.160.0030.07714.38
5.3.150.1700.06014.48
5.3.140.4330.03014.47
5.3.130.4030.04014.48
5.3.120.3870.04014.48
5.3.110.3900.03714.37
5.3.100.3630.03713.98
5.3.90.3800.04013.84
5.3.80.4300.02713.93
5.3.70.4070.03013.88
5.3.60.3630.03713.97
5.3.50.4230.03313.71
5.3.40.3430.03713.92
5.3.30.3430.04313.77
5.3.20.3570.03713.64
5.3.10.3570.03713.63
5.3.00.3670.03713.63
5.2.170.3570.02711.10
5.2.160.3370.02711.14
5.2.150.3070.03011.17
5.2.140.2970.03311.17
5.2.130.2800.03011.09
5.2.120.3130.02011.09
5.2.110.2930.03010.92
5.2.100.2770.03011.09
5.2.90.2800.02011.13
5.2.80.3270.02311.08
5.2.70.3600.03010.87
5.2.60.3000.03011.18
5.2.50.3670.02710.98
5.2.40.2530.02010.97
5.2.30.2400.02310.86
5.2.20.2300.02710.93
5.2.10.2830.02710.88
5.2.00.2930.03010.75
5.1.60.2600.0279.96
5.1.50.2900.0279.92
5.1.40.2970.0239.99
5.1.30.2570.02710.17
5.1.20.2630.02710.24
5.1.10.2970.02310.09
5.1.00.2970.02310.04
5.0.50.1600.0238.51
5.0.40.1130.0238.38
5.0.30.1130.0308.04
5.0.20.1100.0178.13
5.0.10.1100.0208.16
5.0.00.1070.0308.25
4.4.90.1330.0135.78
4.4.80.1330.0135.79
4.4.70.1530.0135.87
4.4.60.1430.0175.78
4.4.50.1530.0175.89
4.4.40.1730.0235.88
4.4.30.1570.0105.88
4.4.20.1670.0175.82
4.4.10.1700.0175.87
4.4.00.1370.0275.91
4.3.110.0870.0175.73
4.3.100.1100.0135.73
4.3.90.1130.0135.81
4.3.80.1070.0275.75
4.3.70.1170.0075.74
4.3.60.1100.0135.73
4.3.50.1130.0105.70
4.3.40.1100.0235.64
4.3.30.0530.0175.56
4.3.20.0600.0105.57
4.3.10.0570.0135.58
4.3.00.0530.0135.58

preferences:
39.57 ms | 400 KiB | 5 Q