3v4l.org

run code in 300+ PHP versions simultaneously
<?php $value = 5; $false = false; $empty = ''; $null = null; echo $null ?? $value; echo $notSet ?? null ?? $value; echo $null ?? $zero ?? $value; var_dump($false ?? $value); var_dump($empty ?? $value);

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)
8.3.60.0140.00716.50
8.3.50.0120.01221.92
8.3.40.0150.00318.71
8.3.30.0110.00418.68
8.3.20.0070.00020.26
8.3.10.0050.00323.65
8.3.00.0000.00819.10
8.2.180.0100.01316.75
8.2.170.0090.00622.96
8.2.160.0070.00720.43
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0070.00021.06
8.2.110.0000.00919.16
8.2.100.0100.00017.91
8.2.90.0000.00819.22
8.2.80.0040.00417.97
8.2.70.0060.00317.63
8.2.60.0070.00017.80
8.2.50.0000.00918.07
8.2.40.0050.00319.34
8.2.30.0000.00820.49
8.2.20.0030.00617.71
8.2.10.0050.00317.91
8.2.00.0000.00717.89
8.1.280.0110.00425.92
8.1.270.0120.00623.96
8.1.260.0070.00026.35
8.1.250.0030.00528.09
8.1.240.0060.00321.09
8.1.230.0080.00417.42
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0000.00917.23
8.1.190.0100.00317.13
8.1.180.0040.00418.10
8.1.170.0040.00418.59
8.1.160.0000.00721.93
8.1.150.0000.00718.72
8.1.140.0000.00819.49
8.1.130.0000.00717.67
8.1.120.0080.00017.42
8.1.110.0000.00717.34
8.1.100.0030.00317.35
8.1.90.0050.00317.45
8.1.80.0040.00417.35
8.1.70.0030.00317.24
8.1.60.0030.00517.54
8.1.50.0040.00417.40
8.1.40.0040.00417.48
8.1.30.0030.00617.48
8.1.20.0000.00817.45
8.1.10.0040.00417.48
8.1.00.0060.00317.34
8.0.300.0080.00318.77
8.0.290.0040.00416.75
8.0.280.0030.00318.44
8.0.270.0030.00317.31
8.0.260.0030.00317.29
8.0.250.0040.00417.03
8.0.240.0040.00416.89
8.0.230.0070.00016.96
8.0.220.0030.00316.85
8.0.210.0030.00616.82
8.0.200.0000.00616.93
8.0.190.0040.00416.88
8.0.180.0000.00716.95
8.0.170.0050.00216.81
8.0.160.0040.00416.89
8.0.150.0000.00716.74
8.0.140.0040.00416.80
8.0.130.0000.00513.27
8.0.120.0040.00416.86
8.0.110.0070.00016.91
8.0.100.0000.00716.71
8.0.90.0070.00016.76
8.0.80.0120.00816.76
8.0.70.0040.00416.84
8.0.60.0000.00716.77
8.0.50.0040.00416.91
8.0.30.0130.00617.11
8.0.20.0140.01017.40
8.0.10.0040.00416.96
8.0.00.0110.00816.67
7.4.330.0060.00016.67
7.4.320.0050.00316.56
7.4.300.0070.00316.53
7.4.290.0000.00716.50
7.4.280.0000.00616.52
7.4.270.0000.00716.52
7.4.260.0060.00316.40
7.4.250.0070.00016.35
7.4.240.0040.00416.45
7.4.230.0070.00016.60
7.4.220.0000.01916.56
7.4.210.0070.00716.52
7.4.200.0030.00316.36
7.4.160.0040.01116.61
7.4.150.0080.00817.40
7.4.140.0150.00317.86
7.4.130.0080.00916.39
7.4.120.0070.01116.42
7.4.110.0060.01316.32
7.4.100.0110.00616.55
7.4.90.0100.00716.45
7.4.80.0090.00919.39
7.4.70.0090.00916.41
7.4.60.0150.00616.55
7.4.50.0100.00616.51
7.4.40.0060.01216.57
7.4.30.0060.00916.72
7.4.00.0030.01014.61
7.3.330.0020.00213.17
7.3.320.0030.00313.07
7.3.310.0050.00316.32
7.3.300.0040.00416.25
7.3.290.0090.00716.26
7.3.280.0090.00616.34
7.3.270.0100.00717.40
7.3.260.0100.00716.54
7.3.250.0100.01016.39
7.3.240.0130.00816.27
7.3.230.0090.00916.39
7.3.210.0170.00616.16
7.3.200.0180.00016.39
7.3.190.0080.00816.30
7.3.180.0070.01416.53
7.3.170.0090.00616.48
7.3.160.0060.01016.39
7.2.330.0070.01716.61
7.2.320.0070.01416.34
7.2.310.0070.01416.39
7.2.300.0030.01316.37
7.2.290.0080.00816.66
7.2.60.0000.01016.48
7.1.200.0050.00315.75
7.1.70.0050.00216.96
7.1.60.0100.00719.36
7.1.50.0070.01416.84
7.1.00.0000.07322.31
7.0.200.0000.00816.93
7.0.60.0100.06320.03
7.0.50.0030.08317.85
7.0.40.0130.07320.02
7.0.30.0030.05720.17
7.0.20.0330.07320.12
7.0.10.0070.09020.20
7.0.00.0070.04020.00
5.6.210.0100.07720.54
5.6.200.0130.05718.20
5.6.190.0030.05720.57
5.6.180.0500.08020.62
5.6.170.0300.07720.48
5.6.160.0100.08020.57
5.6.150.0130.07318.18
5.6.140.0100.07718.28
5.6.130.0000.07018.19
5.6.120.0070.08721.11
5.6.110.0030.04721.02
5.6.100.0030.05020.99
5.6.90.0170.07320.96
5.6.80.0130.07720.51
5.5.350.0270.07320.39
5.5.340.0170.04017.98
5.5.330.0070.09020.56
5.5.320.0070.06020.38
5.5.310.0270.05720.35
5.5.300.0030.08317.99
5.5.290.0170.07018.06
5.5.280.0200.06320.68
5.5.270.0030.08720.72
5.5.260.0130.05720.76
5.5.250.0130.07320.46
5.5.240.0170.03720.18

preferences:
61.11 ms | 401 KiB | 5 Q