3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = 'hai'; $bar = &$foo; debug_zval_dump($bar);

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)
8.3.60.0110.00718.55
8.3.50.0100.00816.30
8.3.40.0120.00318.44
8.3.30.0100.00318.40
8.3.20.0090.00018.35
8.3.10.0040.00420.34
8.3.00.0040.00717.34
8.2.180.0110.01116.38
8.2.170.0060.00922.96
8.2.160.0100.00320.38
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0040.00419.83
8.2.110.0110.00021.18
8.2.100.0080.00417.72
8.2.90.0040.00419.19
8.2.80.0040.00417.97
8.2.70.0030.00517.22
8.2.60.0050.00317.68
8.2.50.0000.00818.07
8.2.40.0050.00218.22
8.2.30.0050.00518.10
8.2.20.0030.00617.64
8.2.10.0050.00317.61
8.2.00.0000.00717.61
8.1.280.0040.01225.92
8.1.270.0080.00024.66
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0000.00920.73
8.1.230.0060.00621.04
8.1.220.0000.00818.77
8.1.210.0060.00618.77
8.1.200.0060.00617.22
8.1.190.0070.00017.54
8.1.180.0030.00518.10
8.1.170.0040.00418.77
8.1.160.0050.00218.80
8.1.150.0040.00418.55
8.1.140.0030.00717.45
8.1.130.0040.00417.82
8.1.120.0000.00817.38
8.1.110.0080.00017.38
8.1.100.0040.00417.32
8.1.90.0040.00317.28
8.1.80.0000.00817.30
8.1.70.0070.00017.40
8.1.60.0050.00217.41
8.1.50.0020.00517.31
8.1.40.0000.00917.33
8.1.30.0000.00817.66
8.1.20.0040.00417.57
8.1.10.0000.00717.33
8.1.00.0000.00717.29
8.0.300.0030.00619.89
8.0.290.0000.00716.75
8.0.280.0040.00418.32
8.0.270.0000.00717.18
8.0.260.0000.00616.74
8.0.250.0060.00316.77
8.0.240.0030.00516.87
8.0.230.0030.00316.86
8.0.220.0050.00216.88
8.0.210.0030.00316.85
8.0.200.0000.00616.92
8.0.190.0070.00016.78
8.0.180.0040.00416.83
8.0.170.0030.00616.84
8.0.160.0070.00016.92
8.0.150.0000.00716.81
8.0.140.0050.00316.72
8.0.130.0030.00313.20
8.0.120.0070.00016.66
8.0.110.0000.00816.84
8.0.100.0040.00416.69
8.0.90.0000.00816.69
8.0.80.0100.00616.82
8.0.70.0070.00016.81
8.0.60.0070.00016.88
8.0.50.0020.00516.86
8.0.30.0110.01117.08
8.0.20.0050.01417.20
8.0.10.0000.00716.87
8.0.00.0140.00716.76
7.4.330.0050.00012.85
7.4.320.0000.00716.32
7.4.300.0030.00316.48
7.4.290.0060.00316.32
7.4.280.0050.00516.42
7.4.270.0040.00416.36
7.4.260.0070.00013.21
7.4.250.0000.00716.55
7.4.240.0030.00516.54
7.4.230.0070.00016.50
7.4.220.0070.01016.46
7.4.210.0080.00716.40
7.4.200.0070.00016.59
7.4.190.0030.00316.65
7.4.160.0060.00916.41
7.4.150.0090.00916.47
7.4.140.0160.00516.38
7.4.130.0100.00816.33
7.4.120.0070.01016.40
7.4.110.0130.00316.42
7.4.100.0100.00716.34
7.4.90.0140.00316.44
7.4.80.0150.00616.09
7.4.70.0150.00716.23
7.4.60.0100.00716.41
7.4.50.0000.00616.28
7.4.40.0060.01016.11
7.4.30.0000.01716.36
7.4.00.0100.00714.93
7.3.330.0000.00713.02
7.3.320.0060.00013.01
7.3.310.0030.00316.09
7.3.300.0070.00016.13
7.3.290.0000.01416.09
7.3.280.0070.00816.10
7.3.270.0140.00416.36
7.3.260.0110.01016.49
7.3.250.0150.00616.35
7.3.240.0120.00616.05
7.3.230.0060.01116.38
7.3.210.0140.00416.02
7.3.200.0120.01019.39
7.3.190.0120.01116.24
7.3.180.0080.00816.04
7.3.170.0140.00716.45
7.3.160.0100.01016.17
7.3.120.0030.01414.88
7.2.330.0100.01316.34
7.2.320.0070.01116.41
7.2.310.0160.00516.45
7.2.300.0120.00316.33
7.2.290.0070.01416.45
7.2.60.0040.01116.77
7.2.00.0000.01519.20
7.1.200.0030.00915.64
7.1.100.0000.00918.14
7.1.70.0070.00417.13
7.1.60.0190.00619.40
7.1.50.0100.01417.07
7.1.00.0100.07022.44
7.0.200.0040.00416.67
7.0.140.0100.06022.00
7.0.60.0000.04719.99
7.0.50.0130.05717.87
7.0.40.0030.08320.04
7.0.30.0270.07320.04
7.0.20.0300.07320.25
7.0.10.0070.05020.33
7.0.00.0130.03320.04
5.6.280.0000.07720.88
5.6.210.0170.06320.76
5.6.200.0130.04318.18
5.6.190.0000.04320.77
5.6.180.0070.05020.63
5.6.170.0270.03020.51
5.6.160.0070.07720.48
5.6.150.0030.08318.19
5.6.140.0030.08718.10
5.6.130.0030.08718.14
5.6.120.0030.06721.11
5.6.110.0170.07720.98
5.6.100.0070.07720.95
5.6.90.0030.05321.12
5.6.80.0230.06320.37
5.5.350.0230.05020.39
5.5.340.0000.07717.95
5.5.330.0070.07720.57
5.5.320.0230.07720.29
5.5.310.0370.04720.27
5.5.300.0030.07718.02
5.5.290.0000.08318.02
5.5.280.0070.09020.76
5.5.270.0100.07320.73
5.5.260.0000.04720.63
5.5.250.0070.04720.67
5.5.240.0030.04720.15
5.4.450.0170.04019.40
5.4.440.0070.07319.46
5.4.430.0000.04319.13
5.4.420.0100.03319.23
5.4.410.0070.05319.37
5.4.400.0030.04719.14
5.4.390.0070.05719.07
5.4.380.0100.05019.12
5.4.370.0170.06718.91
5.4.360.0130.03018.91
5.4.350.0070.07718.81
5.4.340.0070.03719.13
5.4.320.0070.05018.78
5.4.310.0100.03319.14
5.4.300.0070.03719.17
5.4.290.0100.04318.91
5.4.280.0030.06719.07
5.4.270.0100.07718.79
5.4.260.0030.05019.14
5.4.250.0030.08018.79
5.4.240.0070.07719.07
5.4.230.0030.08019.14
5.4.220.0070.03719.17
5.4.210.0030.03719.13
5.4.200.0030.04719.14
5.4.190.0030.03719.14
5.4.180.0000.04319.13
5.4.170.0100.03018.90
5.4.160.0030.03718.77
5.4.150.0070.03319.11
5.4.140.0030.03316.28
5.4.130.0000.03716.24
5.4.120.0000.03716.36
5.4.110.0000.04016.23
5.4.100.0000.04716.15
5.4.90.0030.03316.25
5.4.80.0030.03316.27
5.4.70.0000.03716.27
5.4.60.0030.03316.35
5.4.50.0000.03716.14
5.4.40.0000.03716.27
5.4.30.0000.04016.32
5.4.20.0030.03316.21
5.4.10.0030.03316.12
5.4.00.0000.03715.92
5.3.290.0030.04314.48
5.3.280.0070.06714.55
5.3.270.0000.04014.48
5.3.260.0030.03714.60
5.3.250.0030.03714.50
5.3.240.0030.03714.61
5.3.230.0000.04014.59
5.3.220.0130.02714.35
5.3.210.0030.04014.49
5.3.200.0070.03014.52
5.3.190.0030.04014.50
5.3.180.0030.03714.45
5.3.170.0000.04014.48
5.3.160.0030.03714.45
5.3.150.0070.03314.50
5.3.140.0000.04014.49
5.3.130.0000.04014.50
5.3.120.0000.04014.63
5.3.110.0030.03714.47
5.3.100.0030.03713.91
5.3.90.0000.04013.98
5.3.80.0070.03014.03
5.3.70.0000.03713.85
5.3.60.0000.03713.83
5.3.50.0000.04013.73
5.3.40.0000.03713.87
5.3.30.0000.03713.88
5.3.20.0030.03713.77
5.3.10.0030.03313.60
5.3.00.0070.05013.43
5.2.170.0030.02711.07
5.2.160.0100.02011.13
5.2.150.0000.03011.29
5.2.140.0000.03011.07
5.2.130.0000.03011.11
5.2.120.0030.02710.95
5.2.110.0030.02711.08
5.2.100.0030.04011.25
5.2.90.0000.06311.00
5.2.80.0030.04711.02
5.2.70.0030.03311.03
5.2.60.0030.04711.03
5.2.50.0100.04011.00
5.2.40.0030.05711.01
5.2.30.0000.06310.90
5.2.20.0030.04010.89
5.2.10.0000.05310.93
5.2.00.0000.03010.70
5.1.60.0030.04010.03
5.1.50.0030.0509.95
5.1.40.0000.0279.92
5.1.30.0030.03310.32
5.1.20.0100.05710.50
5.1.10.0030.06010.11
5.1.00.0000.06010.10
5.0.50.0030.0478.58
5.0.40.0030.0308.46
5.0.30.0030.0638.21
5.0.20.0000.0278.10
5.0.10.0030.0438.32
5.0.00.0070.0638.14
4.4.90.0000.0407.80
4.4.80.0000.0377.80
4.4.70.0000.0377.80
4.4.60.0030.0377.80
4.4.50.0100.0277.80
4.4.40.0000.0337.80
4.4.30.0000.0207.80
4.4.20.0000.0177.80
4.4.10.0030.0337.80
4.4.00.0100.0477.80
4.3.110.0000.0337.80
4.3.100.0030.0277.80
4.3.90.0000.0207.80
4.3.80.0070.0437.80
4.3.70.0030.0177.80
4.3.60.0030.0207.80
4.3.50.0070.0277.80
4.3.40.0070.0537.80
4.3.30.0000.0307.80
4.3.20.0000.0237.80
4.3.10.0000.0207.80
4.3.00.0000.0177.80

preferences:
91.87 ms | 400 KiB | 5 Q