3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = null; var_dump($x); var_dump($y); var_dump($x===$y); ?>

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)
8.3.60.0030.01416.50
8.3.50.0100.00521.94
8.3.40.0000.01518.81
8.3.30.0100.00318.81
8.3.20.0040.00420.26
8.3.10.0040.00423.71
8.3.00.0030.00619.15
8.2.180.0180.00018.54
8.2.170.0140.00422.96
8.2.160.0070.00720.39
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0000.00726.16
8.2.120.0030.00622.13
8.2.110.0090.00021.90
8.2.100.0120.00017.78
8.2.90.0040.00417.97
8.2.80.0030.00617.97
8.2.70.0060.00317.75
8.2.60.0050.00317.79
8.2.50.0000.00818.07
8.2.40.0000.00818.22
8.2.30.0020.00518.05
8.2.20.0070.00017.66
8.2.10.0050.00517.92
8.2.00.0040.00417.72
8.1.280.0080.00625.92
8.1.270.0050.00523.71
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00322.33
8.1.230.0040.00821.10
8.1.220.0000.00817.74
8.1.210.0080.00018.85
8.1.200.0040.00717.36
8.1.190.0030.00517.30
8.1.180.0050.00318.10
8.1.170.0000.00818.59
8.1.160.0070.00021.85
8.1.150.0000.00718.52
8.1.140.0090.00017.36
8.1.130.0000.00717.86
8.1.120.0070.00017.44
8.1.110.0040.00417.25
8.1.100.0000.00717.24
8.1.90.0000.00717.28
8.1.80.0040.00417.36
8.1.70.0030.00317.23
8.1.60.0060.00617.49
8.1.50.0050.00317.41
8.1.40.0080.00017.41
8.1.30.0040.00417.57
8.1.20.0000.00817.47
8.1.10.0040.00417.37
8.1.00.0080.00017.43
8.0.300.0090.00019.90
8.0.290.0040.00417.05
8.0.280.0080.00018.36
8.0.270.0000.00817.09
8.0.260.0030.00317.18
8.0.250.0000.00616.96
8.0.240.0000.00716.99
8.0.230.0030.00316.92
8.0.220.0070.00016.90
8.0.210.0030.00316.88
8.0.200.0000.00617.00
8.0.190.0030.00616.98
8.0.180.0000.00716.78
8.0.170.0000.00816.79
8.0.160.0070.00016.86
8.0.150.0040.00416.83
8.0.140.0070.00016.84
8.0.130.0030.00313.35
8.0.120.0000.00816.82
8.0.110.0040.00416.83
8.0.100.0000.00716.74
8.0.90.0050.00216.81
8.0.80.0130.00916.88
8.0.70.0000.00716.82
8.0.60.0070.00016.79
8.0.50.0040.00416.72
8.0.30.0130.00817.14
8.0.20.0080.00917.40
8.0.10.0040.00416.91
8.0.00.0060.01316.67
7.4.330.0000.00515.14
7.4.320.0000.00616.35
7.4.300.0030.00316.51
7.4.290.0000.00716.45
7.4.280.0060.00016.58
7.4.270.0080.00016.44
7.4.260.0000.00716.35
7.4.250.0030.00416.52
7.4.240.0040.00416.58
7.4.230.0040.00416.61
7.4.220.0120.00616.57
7.4.210.0090.00716.58
7.4.200.0000.00716.68
7.4.190.0000.00716.55
7.4.160.0030.01416.42
7.4.150.0090.01017.40
7.4.140.0130.01017.86
7.4.130.0160.00916.63
7.4.120.0090.00816.65
7.4.110.0100.00716.46
7.4.100.0090.01616.41
7.4.90.0110.00816.43
7.4.80.0100.01019.39
7.4.70.0030.01316.51
7.4.60.0130.00316.45
7.4.50.0040.00416.26
7.4.40.0070.01022.77
7.4.30.0060.01216.46
7.4.00.0050.00814.89
7.3.330.0050.00013.17
7.3.320.0020.00213.09
7.3.310.0040.00416.32
7.3.300.0030.00316.35
7.3.290.0060.01516.24
7.3.280.0090.00816.26
7.3.270.0100.00717.40
7.3.260.0090.00616.45
7.3.250.0130.00516.44
7.3.240.0100.00716.29
7.3.230.0060.01016.39
7.3.210.0130.00316.34
7.3.200.0080.01219.39
7.3.190.0140.00316.30
7.3.180.0060.01016.42
7.3.170.0070.00716.27
7.3.160.0040.01116.31
7.3.120.0080.00614.84
7.3.110.0060.01214.76
7.3.100.0070.00314.75
7.3.90.0070.00714.74
7.3.80.0070.00714.51
7.3.70.0070.00714.73
7.3.60.0090.00014.78
7.3.50.0090.00614.55
7.3.40.0030.01114.88
7.3.30.0050.00514.45
7.3.20.0060.00616.35
7.3.10.0060.00916.66
7.3.00.0070.00716.55
7.2.330.0180.00316.56
7.2.320.0060.01216.68
7.2.310.0070.01016.31
7.2.300.0100.00716.37
7.2.290.0030.01316.51
7.2.250.0000.01814.91
7.2.240.0030.01314.84
7.2.230.0060.01214.88
7.2.220.0040.00715.13
7.2.210.0000.01414.57
7.2.200.0040.01114.81
7.2.190.0070.01014.82
7.2.180.0120.00314.88
7.2.170.0030.00614.95
7.2.00.0070.00719.35
7.1.330.0060.00915.51
7.1.320.0040.01115.98
7.1.310.0000.01515.78
7.1.300.0070.00715.81
7.1.290.0000.01715.54
7.1.280.0030.00615.71
7.1.270.0090.00615.86
7.1.260.0070.01015.85
7.1.100.0040.00718.11
7.1.70.0030.00616.95
7.1.60.0140.01119.46
7.1.50.0070.01016.90
7.1.00.0000.08022.48
7.0.200.0150.00416.61
7.0.140.0000.07722.09
7.0.60.0030.04319.83
7.0.50.0030.04717.81
7.0.40.0170.04019.90
7.0.30.0230.06320.24
7.0.20.0330.07320.14
7.0.10.0130.08020.04
7.0.00.0100.06319.99
5.6.280.0030.07320.91
5.6.210.0130.07720.71
5.6.200.0100.08018.20
5.6.190.0100.08320.41
5.6.180.0270.05020.41
5.6.170.0370.06320.41
5.6.160.0100.08020.51
5.6.150.0100.07718.23
5.6.140.0030.04318.21
5.6.130.0070.08018.07
5.6.120.0000.09320.99
5.6.110.0070.08320.97
5.6.100.0130.07020.97
5.6.90.0130.07720.97
5.6.80.0130.08020.41
5.5.350.4200.04720.51
5.5.340.0030.08317.93
5.5.330.0070.05020.29
5.5.320.0300.07720.13
5.5.310.0300.06320.41
5.5.300.0000.04717.91
5.5.290.0130.07718.00
5.5.280.0070.04020.79
5.5.270.0130.04320.72
5.5.260.0030.04320.83
5.5.250.0100.03720.68
5.5.240.0170.07020.15
5.4.450.0100.05019.18
5.4.440.0230.07719.46
5.4.430.0200.07719.41
5.4.420.0270.07019.10
5.4.410.0270.06319.30
5.4.400.0230.07019.11
5.4.390.0170.04318.92
5.4.380.0270.06319.16
5.4.370.0230.04719.07
5.4.360.0270.07319.24
5.4.350.0270.03719.10
5.4.340.0270.03019.10
5.4.320.0230.03319.13
5.4.310.0270.06719.10
5.4.300.0200.04319.15
5.4.290.0170.04018.90
5.4.280.0200.03719.13
5.4.270.0170.04719.08
5.4.260.0230.05319.08
5.4.250.0230.06318.79
5.4.240.0200.04318.76
5.4.230.0270.07019.23
5.4.220.0230.04719.07
5.4.210.0170.07318.93
5.4.200.0170.04319.07
5.4.190.0200.07719.24
5.4.180.0270.03719.23
5.4.170.0270.04019.23
5.4.160.0200.04719.11
5.4.150.0170.04019.19
5.4.140.0200.03016.35
5.4.130.0300.06316.42
5.4.120.0200.04016.44
5.4.110.0130.04716.32
5.4.100.0300.03016.41
5.4.90.0130.07016.43
5.4.80.0270.06016.20
5.4.70.0200.04316.44
5.4.60.0230.03716.45
5.4.50.0170.07316.20
5.4.40.0170.06016.45
5.4.30.0200.03716.16
5.4.20.0230.06716.40
5.4.10.0130.03716.04
5.4.00.0130.03715.89
5.3.290.0230.03014.52
5.3.280.0200.03314.43
5.3.270.0130.04014.45
5.3.260.0170.06314.50
5.3.250.0170.06714.61
5.3.240.0130.05014.43
5.3.230.0170.04714.50
5.3.220.0200.03314.51
5.3.210.0170.04714.46
5.3.200.0200.04014.61
5.3.190.0170.03714.61
5.3.180.0230.07014.50
5.3.170.0230.03714.51
5.3.160.0200.04714.41
5.3.150.0230.06314.40
5.3.140.0170.07314.39
5.3.130.0130.08014.40
5.3.120.0270.06314.49
5.3.110.0270.06714.40
5.3.100.0200.07013.89
5.3.90.0270.06713.98
5.3.80.0130.04713.85
5.3.70.0200.03714.11
5.3.60.0200.04013.97
5.3.50.0100.04713.96
5.3.40.0200.07713.80
5.3.30.0230.07013.89
5.3.20.0200.06713.52
5.3.10.0130.03713.64
5.3.00.0270.06013.62
5.2.170.0130.04712.00
5.2.160.0170.06312.00
5.2.150.0170.04312.00
5.2.140.0130.03312.00
5.2.130.0230.04712.00
5.2.120.0170.04312.00
5.2.110.0170.04312.00
5.2.100.0170.05312.00
5.2.90.0200.04012.00
5.2.80.0230.03712.00
5.2.70.0170.06312.00
5.2.60.0230.05312.00
5.2.50.0170.04712.00
5.2.40.0130.06012.00
5.2.30.0170.03712.00
5.2.20.0170.03312.00
5.2.10.0130.04712.00
5.2.00.0170.05012.00
5.1.60.0170.03312.00
5.1.50.0100.02712.00
5.1.40.0130.02312.00
5.1.30.0230.04712.00
5.1.20.0200.04712.00
5.1.10.0170.02712.00
5.1.00.0100.02712.00
5.0.50.0070.02012.00
5.0.40.0170.04712.00
5.0.30.0130.05312.00
5.0.20.0070.02712.00
5.0.10.0100.04712.00
5.0.00.0100.04012.00
4.4.90.0070.02312.00
4.4.80.0100.03712.00
4.4.70.0130.01712.00
4.4.60.0070.03012.00
4.4.50.0100.03712.00
4.4.40.0100.05012.00
4.4.30.0100.02012.00
4.4.20.0070.02012.00
4.4.10.0070.03712.00
4.4.00.0100.04012.00
4.3.110.0200.02712.00
4.3.100.0070.02712.00
4.3.90.0070.02712.00
4.3.80.0070.02312.00
4.3.70.0070.03312.00
4.3.60.0100.03012.00
4.3.50.0070.01712.00
4.3.40.0070.04012.00
4.3.30.0070.01312.00
4.3.20.0030.03312.00
4.3.10.0070.01312.00
4.3.00.0030.01712.00

preferences:
38.58 ms | 401 KiB | 5 Q