3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'BIT'; $b = $a; debug_zval_dump($a, $b);

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)
8.3.60.0110.00418.43
8.3.50.0070.01321.93
8.3.40.0060.01218.54
8.3.30.0120.00418.41
8.3.20.0040.00418.53
8.3.10.0000.00721.14
8.3.00.0070.00021.92
8.2.180.0060.00916.50
8.2.170.0140.00022.96
8.2.160.0100.00320.52
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0000.00721.11
8.2.110.0030.00620.11
8.2.100.0040.00717.72
8.2.90.0040.00419.05
8.2.80.0050.00317.97
8.2.70.0030.00717.50
8.2.60.0090.00017.93
8.2.50.0080.00018.07
8.2.40.0040.00418.16
8.2.30.0080.00021.13
8.2.20.0050.00217.50
8.2.10.0040.00417.67
8.2.00.0070.00317.73
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0090.00022.42
8.1.230.0090.00320.77
8.1.220.0050.00318.77
8.1.210.0000.00818.80
8.1.200.0070.00317.10
8.1.190.0040.00417.40
8.1.180.0070.00018.10
8.1.170.0090.00018.52
8.1.160.0040.00418.87
8.1.150.0070.00018.62
8.1.140.0000.00717.24
8.1.130.0030.00317.68
8.1.120.0030.00717.28
8.1.110.0000.00817.37
8.1.100.0040.00417.41
8.1.90.0030.00317.34
8.1.80.0050.00317.39
8.1.70.0040.00417.41
8.1.60.0030.00617.54
8.1.50.0040.00417.30
8.1.40.0040.00417.30
8.1.30.0040.00417.40
8.1.20.0040.00417.63
8.1.10.0040.00417.40
8.1.00.0030.00917.38
8.0.300.0030.00619.82
8.0.290.0000.00717.18
8.0.280.0050.00218.48
8.0.270.0040.00717.18
8.0.260.0060.00316.61
8.0.250.0070.00016.95
8.0.240.0000.00716.86
8.0.230.0030.00316.88
8.0.220.0040.00416.70
8.0.210.0060.00016.71
8.0.200.0000.00616.71
8.0.190.0070.00016.77
8.0.180.0040.00416.74
8.0.170.0040.00416.75
8.0.160.0040.00416.82
8.0.150.0000.00716.61
8.0.140.0040.00416.70
8.0.130.0000.00813.27
8.0.120.0040.00416.74
8.0.110.0040.00316.88
8.0.100.0040.00416.82
8.0.90.0000.00816.69
8.0.80.0060.01016.84
8.0.70.0070.00016.86
8.0.60.0070.00016.89
8.0.50.0000.00716.88
8.0.30.0120.01017.05
8.0.20.0080.01117.40
8.0.10.0030.00316.98
8.0.00.0100.00716.68
7.4.330.0020.00214.64
7.4.320.0060.00016.44
7.4.300.0070.00016.45
7.4.290.0030.00316.41
7.4.280.0000.00716.42
7.4.270.0030.00316.41
7.4.260.0030.00313.14
7.4.250.0080.00016.50
7.4.240.0000.00716.44
7.4.230.0070.00016.50
7.4.220.0080.00816.47
7.4.210.0080.00716.41
7.4.200.0000.00716.53
7.4.190.0000.00716.38
7.4.160.0120.00316.30
7.4.150.0050.01117.40
7.4.140.0120.00717.86
7.4.130.0070.01016.41
7.4.120.0100.00816.39
7.4.110.0000.01616.22
7.4.100.0060.01216.33
7.4.90.0110.01216.47
7.4.80.0060.00919.39
7.4.70.0100.00716.34
7.4.60.0100.01016.38
7.4.50.0030.00616.17
7.4.40.0120.00422.52
7.4.30.0160.00616.24
7.4.00.0080.00814.98
7.3.330.0060.00013.17
7.3.320.0050.00013.12
7.3.310.0040.00416.28
7.3.300.0060.00016.18
7.3.290.0060.01316.22
7.3.280.0080.00816.18
7.3.270.0080.00817.40
7.3.260.0120.00718.24
7.3.250.0080.01216.20
7.3.240.0130.00316.29
7.3.230.0060.01216.39
7.3.210.0090.00916.37
7.3.200.0140.01419.39
7.3.190.0150.00316.37
7.3.180.0060.01016.45
7.3.170.0120.00816.48
7.3.160.0040.01216.56
7.3.120.0060.00914.93
7.2.330.0090.00916.53
7.2.320.0200.00416.26
7.2.310.0100.00616.41
7.2.300.0070.01016.48
7.2.290.0060.01016.50
7.2.60.0100.00316.36
7.2.00.0080.00418.87
7.1.200.0100.00015.84
7.1.100.0040.00717.70
7.1.70.0000.00716.96
7.1.60.0170.00719.40
7.1.50.0100.00716.84
7.1.00.0000.06322.36
7.0.200.0000.00816.77
7.0.140.0070.07321.95
7.0.70.0070.04021.62
7.0.60.0030.08321.82
7.0.50.0070.07722.00
7.0.40.0070.06720.14
7.0.30.0070.07020.11
7.0.20.0030.05320.14
7.0.10.0000.08020.09
7.0.00.0070.08320.10
5.6.280.0070.07020.88
5.6.220.0100.06720.43
5.6.210.0000.04720.58
5.6.200.0030.08321.00
5.6.190.0100.08020.93
5.6.180.0030.06320.93
5.6.170.0030.08020.93
5.6.160.0130.07320.93
5.6.150.0030.07021.02
5.6.140.0070.05721.07
5.6.130.0100.07021.10
5.6.120.0030.05721.04
5.6.110.0030.07021.09
5.6.100.0070.08021.00
5.6.90.0070.07021.05
5.6.80.0070.07320.45
5.6.70.0000.06720.47
5.6.60.0030.06720.38
5.6.50.0030.05720.43
5.6.40.0100.06320.36
5.6.30.0000.08720.36
5.6.20.0000.07020.37
5.6.10.0030.06320.44
5.6.00.0000.07720.37
5.5.360.0070.04720.33
5.5.350.0030.07320.36
5.5.340.0030.08020.86
5.5.330.0070.05320.82
5.5.320.0000.08320.73
5.5.310.0100.07720.77
5.5.300.0000.07720.79
5.5.290.0070.07020.79
5.5.280.0100.08020.91
5.5.270.0000.09020.79
5.5.260.0070.07320.76
5.5.250.0070.06020.68
5.5.240.0030.04320.14
5.5.230.0130.07020.21
5.5.220.0070.06320.01
5.5.210.0030.08020.22
5.5.200.0000.08320.18
5.5.190.0100.07320.24
5.5.180.0030.07320.22
5.5.160.0100.07320.17
5.5.150.0000.08320.13
5.5.140.0000.08020.09
5.5.130.0130.07020.23
5.5.120.0000.06019.98
5.5.110.0030.03720.22
5.5.100.0000.05020.16
5.5.90.0000.04019.95
5.5.80.0030.03720.09
5.5.70.0000.03720.11
5.5.60.0000.03719.94
5.5.50.0070.03020.05
5.5.40.0030.03020.12
5.5.30.0030.03319.94
5.5.20.0030.03020.10
5.5.10.0000.04320.11
5.5.00.0000.04719.96
5.4.450.0030.07319.47
5.4.440.0030.08719.13
5.4.430.0100.07719.39
5.4.420.0030.06719.30
5.4.410.0000.07019.14
5.4.400.0070.03719.05
5.4.390.0000.07018.95
5.4.380.0030.07718.78
5.4.370.0030.07318.90
5.4.360.0070.07018.95
5.4.350.0100.05718.83
5.4.340.0030.08319.12
5.4.320.0070.08019.03
5.4.310.0030.07319.12
5.4.300.0030.07319.07
5.4.290.0070.07319.12
5.4.280.0170.07019.05
5.4.270.0030.07019.08
5.4.260.0070.03718.98
5.4.250.0070.06318.98
5.4.240.0000.03718.89
5.4.230.0000.03718.93
5.4.220.0000.03319.03
5.4.210.0000.03719.02
5.4.200.0000.03318.97
5.4.190.0000.04719.03
5.4.180.0030.05718.96
5.4.170.0070.04018.77
5.4.160.0000.03718.76
5.4.150.0000.05018.78
5.4.140.0030.03016.30
5.4.130.0030.03016.06
5.4.120.0070.03016.29
5.4.110.0070.04316.20
5.4.100.0070.03716.21
5.4.90.0070.02316.26
5.4.80.0000.03016.30
5.4.70.0030.03016.29
5.4.60.0000.03316.24
5.4.50.0030.02716.35
5.4.40.0030.02716.39
5.4.30.0000.03016.39
5.4.20.0000.03716.18
5.4.10.0000.03016.22
5.4.00.0030.02715.77
5.3.290.0030.07714.49
5.3.280.0000.03714.45
5.3.270.0000.03314.57
5.3.260.0000.03714.53
5.3.250.0070.07314.59
5.3.240.0000.04014.60
5.3.230.0030.03314.59
5.3.220.0000.03314.50
5.3.210.0000.04314.42
5.3.200.0000.04014.51
5.3.190.0000.03014.55
5.3.180.0000.03014.39
5.3.170.0000.04014.54
5.3.160.0030.03714.54
5.3.150.0030.03714.55
5.3.140.0030.03314.50
5.3.130.0000.03014.39
5.3.120.0100.02314.50
5.3.110.0000.03014.40
5.3.100.0000.03013.89
5.3.90.0030.02713.85
5.3.80.0070.02313.87
5.3.70.0070.02313.87
5.3.60.0000.03013.99
5.3.50.0000.03013.93
5.3.40.0030.02713.90
5.3.30.0000.03013.69
5.3.20.0000.02713.54
5.3.10.0000.02713.41
5.3.00.0000.03013.50
5.2.170.0000.02312.27
5.2.160.0000.02312.27
5.2.150.0000.02312.27
5.2.140.0000.02312.27
5.2.130.0030.02012.27
5.2.120.0000.02712.27
5.2.110.0000.02312.27
5.2.100.0030.02012.27
5.2.90.0000.02712.27
5.2.80.0000.02312.27
5.2.70.0000.02312.27
5.2.60.0000.02712.27
5.2.50.0000.03312.27
5.2.40.0030.02312.27
5.2.30.0000.02312.27
5.2.20.0030.02312.27
5.2.10.0000.03012.27
5.2.00.0000.02312.27
5.1.60.0000.02012.27
5.1.50.0000.02312.27
5.1.40.0000.02012.27
5.1.30.0000.02712.27
5.1.20.0030.05012.27
5.1.10.0030.03312.27
5.1.00.0030.02312.27
5.0.50.0000.02312.27
5.0.40.0070.01712.27
5.0.30.0000.06312.27
5.0.20.0000.04312.27
5.0.10.0000.03012.27
5.0.00.0000.04012.27
4.4.90.0000.01312.27
4.4.80.0000.01312.27
4.4.70.0000.01712.27
4.4.60.0000.01312.27
4.4.50.0000.01712.27
4.4.40.0000.02012.27
4.4.30.0030.01312.27
4.4.20.0000.01312.27
4.4.10.0000.01712.27
4.4.00.0000.03712.27
4.3.110.0000.02312.27
4.3.100.0030.02012.27
4.3.90.0000.03312.27
4.3.80.0030.04312.27
4.3.70.0030.03312.27
4.3.60.0000.03712.27
4.3.50.0000.03312.27
4.3.40.0000.05712.27
4.3.30.0000.03012.27
4.3.20.0030.03012.27
4.3.10.0000.03312.27
4.3.00.0000.03312.27

preferences:
59.06 ms | 400 KiB | 5 Q