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 ?? $value; var_dump($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)
8.3.60.0120.00616.50
8.3.50.0170.00521.92
8.3.40.0000.01518.65
8.3.30.0070.00718.58
8.3.20.0040.00420.16
8.3.10.0040.00423.65
8.3.00.0000.00819.38
8.2.180.0110.01116.75
8.2.170.0060.00922.96
8.2.160.0030.01020.38
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0060.00320.64
8.2.120.0090.00926.35
8.2.110.0040.00420.45
8.2.100.0000.01117.93
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0000.00817.63
8.2.60.0030.00617.80
8.2.50.0000.00818.07
8.2.40.0060.00319.34
8.2.30.0000.00720.68
8.2.20.0030.00617.64
8.2.10.0050.00317.91
8.2.00.0000.00817.98
8.1.280.0110.00425.92
8.1.270.0040.00423.99
8.1.260.0030.00628.09
8.1.250.0060.00328.09
8.1.240.0060.00323.85
8.1.230.0070.00319.10
8.1.220.0080.00017.74
8.1.210.0080.00018.77
8.1.200.0060.00317.23
8.1.190.0040.00417.64
8.1.180.0070.00018.10
8.1.170.0030.00518.47
8.1.160.0040.00421.94
8.1.150.0040.00418.76
8.1.140.0040.00417.40
8.1.130.0030.00317.63
8.1.120.0040.00417.36
8.1.110.0000.00717.36
8.1.100.0070.00017.42
8.1.90.0000.00817.41
8.1.80.0030.00317.40
8.1.70.0000.00717.36
8.1.60.0080.00017.48
8.1.50.0000.00817.39
8.1.40.0000.00717.42
8.1.30.0000.00817.68
8.1.20.0000.00717.50
8.1.10.0000.00817.43
8.1.00.0070.00017.40
8.0.300.0080.00018.77
8.0.290.0070.00016.75
8.0.280.0030.00318.51
8.0.270.0000.00716.81
8.0.260.0030.00317.18
8.0.250.0060.00016.99
8.0.240.0000.00817.05
8.0.230.0070.00016.91
8.0.220.0000.00716.77
8.0.210.0040.00416.81
8.0.200.0030.00316.96
8.0.190.0000.00716.96
8.0.180.0000.00716.79
8.0.170.0000.00716.82
8.0.160.0070.00416.72
8.0.150.0040.00416.71
8.0.140.0000.00716.86
8.0.130.0060.00013.30
8.0.120.0050.00316.88
8.0.110.0050.00216.80
8.0.100.0070.00016.78
8.0.90.0000.00716.92
8.0.80.0090.00616.90
8.0.70.0070.00016.74
8.0.60.0000.00716.72
8.0.50.0050.00216.90
8.0.30.0060.01517.08
8.0.20.0090.01017.40
8.0.10.0040.00416.95
8.0.00.0100.01416.72
7.4.330.0050.00016.70
7.4.320.0000.00716.43
7.4.300.0030.00316.50
7.4.290.0030.00316.50
7.4.280.0050.00216.50
7.4.270.0030.00316.54
7.4.260.0000.00716.41
7.4.250.0030.00316.40
7.4.240.0040.00416.43
7.4.230.0000.00716.59
7.4.220.0130.00716.37
7.4.210.0110.00416.53
7.4.200.0040.00416.32
7.4.160.0090.01316.68
7.4.150.0130.00617.40
7.4.140.0080.01017.86
7.4.130.0140.00716.45
7.4.120.0080.01116.50
7.4.110.0070.01016.47
7.4.100.0130.01016.29
7.4.90.0130.00416.43
7.4.80.0120.01019.39
7.4.70.0110.01116.32
7.4.60.0160.00016.46
7.4.50.0040.01116.16
7.4.40.0000.01516.48
7.4.30.0100.00716.47
7.4.10.0110.00714.82
7.4.00.0060.01114.97
7.3.330.0020.00213.02
7.3.320.0030.00313.06
7.3.310.0030.00416.34
7.3.300.0040.00416.28
7.3.290.0090.00516.28
7.3.280.0080.01016.31
7.3.270.0090.00917.40
7.3.260.0070.01016.18
7.3.250.0130.00716.27
7.3.240.0140.01316.45
7.3.230.0120.00616.48
7.3.210.0070.01516.18
7.3.200.0030.01316.27
7.3.190.0050.01116.32
7.3.180.0040.01416.26
7.3.170.0100.00716.43
7.3.160.0180.00316.21
7.3.130.0060.01214.69
7.3.120.0090.00814.92
7.3.110.0060.00814.52
7.3.100.0060.01114.78
7.3.90.0100.00314.67
7.3.80.0060.00814.81
7.3.70.0070.00714.63
7.3.60.0060.00614.45
7.3.50.0030.01014.54
7.3.40.0050.00914.60
7.3.30.0000.01214.70
7.3.20.0110.00616.46
7.3.10.0070.00916.52
7.3.00.0060.00816.58
7.2.330.0160.00716.35
7.2.320.0100.01316.60
7.2.310.0100.00716.54
7.2.300.0050.01116.61
7.2.290.0060.01016.37
7.2.260.0030.01014.40
7.2.250.0080.01014.57
7.2.240.0110.00315.04
7.2.230.0090.00614.65
7.2.220.0070.00514.97
7.2.210.0070.00514.88
7.2.200.0040.00714.92
7.2.190.0030.01414.81
7.2.180.0020.01214.94
7.2.170.0100.00214.80
7.2.160.0070.01114.97
7.2.150.0060.01016.62
7.2.140.0070.01016.49
7.2.130.0070.01216.78
7.2.120.0030.00916.75
7.2.110.0050.00816.77
7.2.100.0040.00816.79
7.2.90.0060.00816.74
7.2.80.0070.00316.84
7.2.70.0040.00916.77
7.2.60.0070.00716.89
7.2.50.0020.01116.78
7.2.40.0090.00616.74
7.2.30.0030.00816.74
7.2.20.0060.01116.77
7.2.10.0070.01116.67
7.2.00.0060.00717.39
7.1.330.0030.01215.71
7.1.320.0050.01015.83
7.1.310.0070.00715.71
7.1.300.0030.01015.54
7.1.290.0050.00615.71
7.1.280.0050.00615.69
7.1.270.0090.00615.52
7.1.260.0030.00815.66
7.1.250.0080.00815.68
7.1.240.0020.01115.64
7.1.230.0040.00815.50
7.1.220.0050.00815.42
7.1.210.0050.00815.59
7.1.200.0110.00115.68
7.1.190.0070.00415.75
7.1.180.0020.01115.66
7.1.170.0020.00715.65
7.1.160.0070.00415.51
7.1.150.0050.00915.73
7.1.140.0060.00815.58
7.1.130.0040.00615.54
7.1.120.0050.00615.65
7.1.110.0080.00615.70
7.1.100.0030.01016.42
7.1.90.0060.00615.63
7.1.80.0080.00715.60
7.1.70.0050.00716.04
7.1.60.0070.00716.94
7.1.50.0060.01016.11
7.1.40.0050.00715.62
7.1.30.0060.00815.80
7.1.20.0030.00815.74
7.1.10.0100.00215.65
7.1.00.0070.02917.87
7.0.330.0020.00815.40
7.0.320.0010.01215.41
7.0.310.0000.01215.44
7.0.300.0060.00315.19
7.0.290.0070.01015.35
7.0.280.0060.00615.30
7.0.270.0020.01315.16
7.0.260.0050.00615.38
7.0.250.0060.00815.25
7.0.240.0000.01215.36
7.0.230.0040.00615.29
7.0.220.0090.00515.46
7.0.210.0080.00715.33
7.0.200.0050.00615.75
7.0.190.0050.00515.12
7.0.180.0020.00815.31
7.0.170.0090.00415.32
7.0.160.0050.00315.33
7.0.150.0100.00315.37
7.0.140.0080.00615.34
7.0.130.0060.00715.16
7.0.120.0030.00915.35
7.0.110.0020.01115.25
7.0.100.0040.00515.30
7.0.90.0050.00715.30
7.0.80.0050.00915.43
7.0.70.0080.00215.33
7.0.60.0090.02216.88
7.0.50.0080.02816.24
7.0.40.0090.03215.57
7.0.30.0090.02915.63
7.0.20.0170.02615.50
7.0.10.0100.03015.53
7.0.00.0060.01915.64
5.6.400.0020.01014.31
5.6.390.0050.00814.18
5.6.380.0070.00814.10
5.6.370.0020.01114.11
5.6.360.0070.00714.25
5.6.350.0020.01214.03
5.6.340.0040.00614.18
5.6.330.0060.00513.95
5.6.320.0110.00314.12
5.6.310.0070.00814.15
5.6.300.0040.01114.02
5.6.290.0020.01014.16
5.6.280.0050.02116.33
5.6.270.0040.01213.98
5.6.260.0050.00814.07
5.6.250.0090.00313.86
5.6.240.0030.00914.03
5.6.230.0040.01114.15
5.6.220.0050.00713.96
5.6.210.0060.03316.25
5.6.200.0120.02415.33
5.6.190.0060.02016.11
5.6.180.0200.03016.11
5.6.170.0110.03116.14
5.6.160.0030.03316.24
5.6.150.0090.02615.41
5.6.140.0060.03115.49
5.6.130.0040.02015.29
5.6.120.0030.03216.35
5.6.110.0080.03316.36
5.6.100.0040.01916.39
5.6.90.0060.02916.38
5.6.80.0080.03116.21
5.6.70.0050.00814.23
5.6.60.0040.00813.94
5.6.50.0060.00713.96
5.6.40.0080.00513.77
5.6.30.0090.00813.88
5.6.20.0080.00813.72
5.6.10.0110.00314.03
5.6.00.0040.00814.03
5.5.380.0060.00913.87
5.5.370.0070.00713.91
5.5.360.0060.00614.02
5.5.350.0100.03016.08
5.5.340.0010.03715.48
5.5.330.0090.02916.02
5.5.320.0030.02016.33
5.5.310.0130.02816.17
5.5.300.0090.01715.34
5.5.290.0060.03415.50
5.5.280.0050.02116.32
5.5.270.0040.02516.32
5.5.260.0090.03216.23
5.5.250.0080.01816.19
5.5.240.0100.01915.96
5.5.230.0080.00614.12
5.5.220.0060.00613.79
5.5.210.0070.00513.81
5.5.200.0080.00813.95
5.5.190.0090.00513.91
5.5.180.0070.00713.84
5.5.170.0040.01014.00
5.5.160.0060.00713.89
5.5.150.0090.00514.09
5.5.140.0040.01013.97
5.5.130.0070.00714.16
5.5.120.0080.00913.77
5.5.110.0020.01213.77
5.5.100.0120.00513.97
5.5.90.0080.00713.79
5.5.80.0060.00713.89
5.5.70.0080.00813.99
5.5.60.0100.00513.73
5.5.50.0060.00913.97
5.5.40.0070.01013.87
5.5.30.0060.00814.08
5.5.20.0060.00813.99
5.5.10.0100.00314.02
5.5.00.0020.01013.71

preferences:
54.06 ms | 401 KiB | 5 Q