3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = null; echo is_null($a) ? 'null' : 'not null';

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)
8.3.60.0120.00616.36
8.3.50.0120.00921.12
8.3.40.0070.00718.53
8.3.30.0130.00318.60
8.3.20.0100.00020.18
8.3.10.0070.00023.61
8.3.00.0080.00019.66
8.2.180.0090.00918.16
8.2.170.0200.00022.96
8.2.160.0070.00720.39
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0030.00520.98
8.2.120.0050.00326.35
8.2.110.0030.00622.26
8.2.100.0060.00618.05
8.2.90.0040.00419.08
8.2.80.0030.00517.97
8.2.70.0060.00317.63
8.2.60.0050.00317.92
8.2.50.0000.00818.07
8.2.40.0090.00020.43
8.2.30.0040.00420.57
8.2.20.0000.00717.66
8.2.10.0030.00617.91
8.2.00.0040.00417.86
8.1.280.0090.00625.92
8.1.270.0060.00320.09
8.1.260.0040.00428.09
8.1.250.0040.00428.09
8.1.240.0040.00423.92
8.1.230.0040.00719.15
8.1.220.0050.00217.74
8.1.210.0070.00318.77
8.1.200.0060.00317.22
8.1.190.0050.00317.00
8.1.180.0080.00018.10
8.1.170.0050.00318.58
8.1.160.0040.00420.65
8.1.150.0040.00418.79
8.1.140.0000.00819.41
8.1.130.0030.00317.54
8.1.120.0000.00817.34
8.1.110.0040.00417.29
8.1.100.0000.00817.23
8.1.90.0000.00917.41
8.1.80.0040.00417.43
8.1.70.0000.00717.26
8.1.60.0080.00517.55
8.1.50.0060.00317.37
8.1.40.0000.00817.32
8.1.30.0000.00817.56
8.1.20.0040.00417.55
8.1.10.0040.00417.54
8.1.00.0040.00417.35
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0000.00718.43
8.0.270.0030.00317.26
8.0.260.0040.00417.25
8.0.250.0000.00816.96
8.0.240.0000.00716.91
8.0.230.0000.00716.91
8.0.220.0000.00816.77
8.0.210.0040.00416.70
8.0.200.0040.00416.76
8.0.190.0080.00016.87
8.0.180.0000.00716.83
8.0.170.0040.00416.81
8.0.160.0000.00716.84
8.0.150.0050.00216.78
8.0.140.0000.00716.82
8.0.130.0030.00313.28
8.0.120.0040.00416.68
8.0.110.0080.00016.73
8.0.100.0040.00416.70
8.0.90.0030.00416.93
8.0.80.0090.00616.80
8.0.70.0050.00316.62
8.0.60.0000.00716.75
8.0.50.0020.00516.84
8.0.30.0090.01116.89
8.0.20.0090.00917.40
8.0.10.0040.00416.75
8.0.00.0110.00816.57
7.4.330.0050.00016.67
7.4.320.0000.00616.45
7.4.300.0070.00016.38
7.4.290.0000.00816.50
7.4.280.0040.00416.34
7.4.270.0070.00016.45
7.4.260.0030.00316.42
7.4.250.0070.00016.33
7.4.240.0020.00616.44
7.4.230.0000.00716.33
7.4.220.0130.00616.47
7.4.210.0120.00516.55
7.4.200.0000.00716.63
7.4.160.0080.00816.41
7.4.150.0100.00717.40
7.4.140.0120.01017.86
7.4.130.0090.01216.48
7.4.120.0100.00716.45
7.4.110.0140.00316.41
7.4.100.0160.00416.42
7.4.90.0100.00716.36
7.4.80.0130.00319.39
7.4.70.0070.01016.54
7.4.60.0080.00816.48
7.4.50.0110.00416.52
7.4.40.0120.00616.38
7.4.30.0040.01216.51
7.4.00.0070.01015.00
7.3.330.0020.00212.87
7.3.320.0040.00312.96
7.3.310.0030.00316.05
7.3.300.0000.00616.16
7.3.290.0070.00016.16
7.3.280.0070.01116.11
7.3.270.0070.01117.40
7.3.260.0140.00316.41
7.3.250.0120.00816.32
7.3.240.0090.00816.37
7.3.230.0110.00616.39
7.3.210.0070.01016.15
7.3.200.0100.01016.49
7.3.190.0060.00916.15
7.3.180.0090.00916.36
7.3.170.0110.00916.59
7.3.160.0120.00316.02
7.3.120.0000.01714.63
7.3.110.0130.00314.77
7.3.100.0090.00614.57
7.3.90.0000.00914.86
7.3.80.0150.00314.30
7.3.70.0060.00614.54
7.3.60.0090.00614.65
7.3.50.0110.00414.71
7.3.40.0000.01414.76
7.3.30.0070.00714.82
7.3.20.0000.01416.44
7.3.10.0070.00716.66
7.3.00.0080.00416.32
7.2.330.0070.01016.32
7.2.320.0140.00716.38
7.2.310.0150.00316.39
7.2.300.0130.00316.29
7.2.290.0030.01616.36
7.2.250.0060.01015.01
7.2.240.0090.00915.02
7.2.230.0060.01114.84
7.2.220.0030.01015.04
7.2.210.0090.00614.60
7.2.200.0060.00614.88
7.2.190.0000.00915.03
7.2.180.0030.01214.86
7.2.170.0050.00514.64
7.2.60.0000.01216.67
7.2.00.0000.01019.16
7.1.330.0070.00715.70
7.1.320.0060.00615.64
7.1.310.0060.00915.57
7.1.300.0070.00315.65
7.1.290.0090.00615.29
7.1.280.0060.00615.48
7.1.270.0000.01315.71
7.1.260.0040.01215.89
7.1.200.0080.00715.53
7.1.100.0000.01217.81
7.1.70.0000.00716.70
7.1.60.0030.02119.52
7.1.50.0100.01416.46
7.1.00.0030.07322.43
7.0.200.0030.00616.74
7.0.60.0070.04319.96
7.0.50.0070.05717.79
7.0.40.0100.08720.24
7.0.30.0300.04720.09
7.0.20.0230.05720.09
7.0.10.0100.08320.00
7.0.00.0130.07720.12
5.6.280.0000.07720.77
5.6.210.0100.06720.52
5.6.200.0070.07018.22
5.6.190.0130.06720.41
5.6.180.0200.03720.66
5.6.170.0300.04320.45
5.6.160.0030.04020.46
5.6.150.0070.07718.11
5.6.140.0070.06318.21
5.6.130.0070.03718.15
5.6.120.0030.08721.04
5.6.110.0170.07321.03
5.6.100.0070.06320.97
5.6.90.0070.04321.00
5.6.80.0000.04320.36
5.5.350.0170.03720.34
5.5.340.0000.04317.91
5.5.330.0000.04720.13
5.5.320.0670.06320.51
5.5.310.0130.04720.30
5.5.300.0070.04317.95
5.5.290.0000.04717.91
5.5.280.0030.05020.87
5.5.270.0030.07020.67
5.5.260.0030.04320.88
5.5.250.0030.07720.58
5.5.240.4130.04320.36

preferences:
57.26 ms | 401 KiB | 5 Q