3v4l.org

run code in 300+ PHP versions simultaneously
<?php $value = 5; $false = false; $empty = ''; $null = null; echo $null ?? $value; echo $null ?? null ?? $value; echo $null ?? $zero ?? $value; echo $false ?? $value; echo $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)
8.3.60.0090.00916.50
8.3.50.0160.00521.91
8.3.40.0070.00718.76
8.3.30.0150.00318.62
8.3.20.0000.00720.33
8.3.10.0040.00423.64
8.3.00.0060.00319.25
8.2.180.0090.00618.56
8.2.170.0120.00322.96
8.2.160.0070.00720.38
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00522.05
8.2.120.0040.00426.35
8.2.110.0060.00320.35
8.2.100.0080.00417.91
8.2.90.0040.00419.29
8.2.80.0030.00617.97
8.2.70.0060.00317.61
8.2.60.0000.00917.80
8.2.50.0050.00318.07
8.2.40.0070.00019.28
8.2.30.0000.00820.57
8.2.20.0030.00617.77
8.2.10.0090.00018.05
8.2.00.0040.00418.04
8.1.280.0000.01425.92
8.1.270.0130.00623.82
8.1.260.0030.01428.09
8.1.250.0030.00628.09
8.1.240.0060.00323.89
8.1.230.0030.00917.79
8.1.220.0040.00417.79
8.1.210.0060.00318.77
8.1.200.0030.00617.25
8.1.190.0070.00017.64
8.1.180.0040.00418.10
8.1.170.0110.00018.52
8.1.160.0000.00721.93
8.1.150.0040.00418.82
8.1.140.0030.00619.51
8.1.130.0000.00717.68
8.1.120.0030.00317.41
8.1.110.0070.00017.30
8.1.100.0030.00517.39
8.1.90.0080.00017.34
8.1.80.0000.00717.37
8.1.70.0030.00317.42
8.1.60.0040.00417.37
8.1.50.0040.00417.45
8.1.40.0030.00617.46
8.1.30.0040.00417.63
8.1.20.0000.00817.51
8.1.10.0040.00417.48
8.1.00.0040.00417.32
8.0.300.0040.00418.77
8.0.290.0040.00416.72
8.0.280.0050.00218.44
8.0.270.0000.00717.38
8.0.260.0030.00317.26
8.0.250.0050.00316.89
8.0.240.0070.00017.03
8.0.230.0030.00316.92
8.0.220.0040.00416.77
8.0.210.0000.00716.87
8.0.200.0000.00816.96
8.0.190.0040.00416.88
8.0.180.0040.00416.96
8.0.170.0070.00016.84
8.0.160.0030.00616.98
8.0.150.0030.00316.86
8.0.140.0000.00716.74
8.0.130.0000.00513.32
8.0.120.0000.00816.80
8.0.110.0000.00716.70
8.0.100.0030.00316.89
8.0.90.0000.00816.91
8.0.80.0150.00016.93
8.0.70.0040.00416.70
8.0.60.0050.00316.93
8.0.50.0040.00416.70
8.0.30.0110.00917.11
8.0.20.0120.01517.40
8.0.10.0040.00416.84
8.0.00.0090.00916.83
7.4.330.0050.00016.72
7.4.320.0050.00216.55
7.4.300.0030.00516.45
7.4.290.0030.00316.55
7.4.280.0050.00316.44
7.4.270.0000.00716.45
7.4.260.0070.00016.51
7.4.250.0000.00716.32
7.4.240.0000.00716.53
7.4.230.0030.00316.61
7.4.220.0160.00916.56
7.4.210.0060.01316.47
7.4.200.0000.00716.64
7.4.160.0120.00316.50
7.4.150.0070.01717.40
7.4.140.0130.00617.86
7.4.130.0100.01016.52
7.4.120.0120.00616.42
7.4.110.0100.01016.38
7.4.100.0130.00816.35
7.4.90.0130.00316.30
7.4.80.0170.00319.39
7.4.70.0100.00716.57
7.4.60.0060.01216.42
7.4.50.0110.00616.34
7.4.40.0070.00716.55
7.4.30.0150.00616.56
7.4.00.0060.01014.71
7.3.330.0000.00512.96
7.3.320.0030.00313.00
7.3.310.0000.00816.33
7.3.300.0000.00716.30
7.3.290.0090.00716.22
7.3.280.0070.01016.24
7.3.270.0140.00417.40
7.3.260.0060.01016.25
7.3.250.0070.01116.39
7.3.240.0100.00716.17
7.3.230.0100.00616.51
7.3.210.0100.01316.36
7.3.200.0060.01016.18
7.3.190.0100.01016.23
7.3.180.0070.01416.34
7.3.170.0100.00616.36
7.3.160.0060.00916.21
7.2.330.0070.01116.28
7.2.320.0150.00316.15
7.2.310.0060.01016.27
7.2.300.0060.01216.27
7.2.290.0110.00616.56
7.2.60.0040.00716.59
7.2.00.0070.00719.21
7.1.200.0040.01115.50
7.1.100.0030.01018.20
7.1.70.0000.01217.09
7.1.60.0150.00319.36
7.1.50.0100.01016.64
7.1.00.0030.07722.43
7.0.200.0060.00316.61
7.0.60.0070.07019.93
7.0.50.0200.04017.86
7.0.40.0100.04020.20
7.0.30.0030.09020.20
7.0.20.0230.09020.09
7.0.10.0100.08720.00
7.0.00.0030.04320.29
5.6.280.0000.04321.04
5.6.210.0170.07020.53
5.6.200.0130.05318.29
5.6.190.0100.08320.48
5.6.180.0370.05320.43
5.6.170.0230.05020.56
5.6.160.0100.05320.54
5.6.150.0100.08018.18
5.6.140.0070.04718.28
5.6.130.0070.05018.25
5.6.120.0100.06320.98
5.6.110.0130.07321.02
5.6.100.0070.04021.10
5.6.90.0070.08321.01
5.6.80.0230.06020.50
5.5.350.0230.07720.38
5.5.340.0130.06018.00
5.5.330.0100.06720.13
5.5.320.0030.03720.30
5.5.310.0300.07020.33
5.5.300.0070.04717.91
5.5.290.0070.05317.95
5.5.280.0070.06720.67
5.5.270.0000.05020.75
5.5.260.0100.08720.88
5.5.250.0070.04320.57
5.5.240.0200.03720.11

preferences:
80.23 ms | 401 KiB | 5 Q