3v4l.org

run code in 300+ PHP versions simultaneously
<?php function x ($blah = null){ if(!is_null($blah)){ echo 'its is there'; } } x(0); x();

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)
8.3.60.0070.00718.27
8.3.50.0110.00418.13
8.3.40.0000.01518.67
8.3.30.0110.00418.64
8.3.20.0050.00320.60
8.3.10.0040.00423.69
8.3.00.0070.00418.60
8.2.180.0100.00716.38
8.2.170.0070.01122.96
8.2.160.0070.00720.79
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00019.77
8.2.120.0050.00326.35
8.2.110.0100.00022.25
8.2.100.0110.00017.78
8.2.90.0030.00519.39
8.2.80.0090.00018.66
8.2.70.0060.00317.50
8.2.60.0060.00617.66
8.2.50.0030.00518.07
8.2.40.0030.00617.91
8.2.30.0000.00817.99
8.2.20.0040.00417.98
8.2.10.0050.00219.18
8.2.00.0070.00018.13
8.1.280.0130.00625.92
8.1.270.0040.00420.29
8.1.260.0050.00226.35
8.1.250.0000.00728.09
8.1.240.0110.00823.96
8.1.230.0060.00619.16
8.1.220.0040.00417.74
8.1.210.0050.00318.77
8.1.200.0030.00617.23
8.1.190.0040.00417.23
8.1.180.0030.00618.10
8.1.170.0060.00318.72
8.1.160.0040.00418.69
8.1.150.0000.00718.73
8.1.140.0040.00418.95
8.1.130.0030.00320.25
8.1.120.0040.00417.30
8.1.110.0070.00017.40
8.1.100.0050.00517.40
8.1.90.0000.00717.35
8.1.80.0000.00917.20
8.1.70.0070.00017.41
8.1.60.0070.00017.54
8.1.50.0000.00717.44
8.1.40.0060.00317.31
8.1.30.0000.01017.58
8.1.20.0000.00817.54
8.1.10.0000.00917.42
8.1.00.0000.00917.39
8.0.300.0000.00718.77
8.0.290.0030.00516.63
8.0.280.0070.00018.32
8.0.270.0030.00317.20
8.0.260.0070.00018.36
8.0.250.0000.00716.91
8.0.240.0040.00416.77
8.0.230.0030.00316.84
8.0.220.0030.00316.78
8.0.210.0050.00316.88
8.0.200.0000.00816.91
8.0.190.0050.00216.89
8.0.180.0020.00516.86
8.0.170.0090.00016.80
8.0.160.0030.00316.81
8.0.150.0070.00416.70
8.0.140.0040.00416.68
8.0.130.0030.00313.20
8.0.120.0070.00016.75
8.0.110.0030.00616.91
8.0.100.0040.00416.81
8.0.90.0050.00216.65
8.0.80.0050.01016.86
8.0.70.0050.00316.86
8.0.60.0040.00416.70
8.0.50.0040.00416.79
8.0.30.0080.00817.18
8.0.20.0110.01516.83
8.0.10.0040.00416.82
8.0.00.0100.00816.65
7.4.330.0020.00216.71
7.4.320.0000.00716.53
7.4.300.0060.00016.43
7.4.290.0050.00216.45
7.4.280.0000.00716.51
7.4.270.0070.00016.41
7.4.260.0000.00716.46
7.4.250.0040.00416.38
7.4.240.0080.00016.47
7.4.230.0000.00716.64
7.4.220.0040.00416.54
7.4.210.0080.01016.48
7.4.200.0040.00416.32
7.4.160.0100.00716.48
7.4.140.0070.01717.86
7.4.130.0150.00616.39
7.4.120.0070.01116.43
7.4.110.0130.00316.31
7.4.100.0100.00716.39
7.4.90.0000.01716.34
7.4.80.0030.01419.39
7.4.70.0060.01616.52
7.4.60.0100.00716.42
7.4.50.0050.00616.39
7.4.40.0140.01016.14
7.4.00.0070.00714.91
7.3.330.0000.00513.23
7.3.320.0050.00013.18
7.3.310.0070.00016.29
7.3.300.0030.00316.27
7.3.290.0030.00316.27
7.3.280.0080.00916.20
7.3.260.0100.00716.40
7.3.240.0120.00816.38
7.3.230.0110.00616.50
7.3.210.0070.01016.30
7.3.200.0100.00716.18
7.3.190.0100.00716.22
7.3.180.0100.01016.38
7.3.170.0100.00616.35
7.3.160.0000.01616.45
7.3.120.0050.01114.80
7.3.110.0050.01214.61
7.3.100.0110.00414.63
7.3.90.0070.00914.61
7.3.80.0070.00814.84
7.3.70.0060.01014.71
7.3.60.0040.00814.59
7.3.50.0060.00914.57
7.3.40.0070.00814.75
7.3.30.0060.00714.66
7.3.20.1360.00516.13
7.3.10.1520.00716.09
7.3.00.1510.00716.05
7.2.330.0130.00416.67
7.2.320.0070.01016.48
7.2.310.0030.01416.27
7.2.300.0130.00316.57
7.2.290.0070.01116.43
7.2.250.0080.01014.98
7.2.240.0090.01114.90
7.2.230.0090.00815.08
7.2.220.0090.00715.10
7.2.210.0050.00714.85
7.2.200.0060.00814.87
7.2.190.0020.01314.75
7.2.180.0060.00914.97
7.2.170.0070.00614.95
7.2.160.0100.00614.64
7.2.150.3710.00815.75
7.2.140.3200.00915.60
7.2.130.3990.00415.87
7.2.120.3140.00215.67
7.2.110.4260.00915.85
7.2.100.3730.00815.70
7.2.90.4300.00815.88
7.2.80.3080.01015.71
7.2.70.4160.00715.73
7.2.60.3530.00615.82
7.2.50.3220.01015.75
7.2.40.3330.00815.69
7.2.30.3560.00315.70
7.2.20.3870.01015.81
7.2.10.3200.01015.61
7.2.00.3070.00615.90
7.1.330.0070.00715.57
7.1.320.0030.00915.61
7.1.310.0050.00615.49
7.1.300.0030.00815.58
7.1.290.0070.00615.43
7.1.280.0020.00915.56
7.1.270.1940.00514.97
7.1.260.1570.00714.96
7.1.250.2910.00314.58

preferences:
74.26 ms | 400 KiB | 5 Q