3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = null; if ( !$var ) { echo 'without is_null() |'; } if ( is_null($var) ) { echo 'with is_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)
8.3.60.0120.00918.18
8.3.50.0070.00717.90
8.3.40.0060.00918.65
8.3.30.0090.00618.54
8.3.20.0080.00018.98
8.3.10.0050.00221.77
8.3.00.0030.00519.68
8.2.180.0150.00018.41
8.2.170.0070.00722.96
8.2.160.0140.00022.01
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00019.53
8.2.120.0000.00826.35
8.2.110.0100.00019.45
8.2.100.0030.00819.47
8.2.90.0040.00419.05
8.2.80.0000.00817.97
8.2.70.0030.00517.63
8.2.60.0080.00017.93
8.2.50.0040.00418.07
8.2.40.0050.00318.22
8.2.30.0040.00418.05
8.2.20.0070.00317.55
8.2.10.0040.00418.05
8.2.00.0000.00718.08
8.1.280.0150.00425.92
8.1.270.0080.00023.92
8.1.260.0050.00228.09
8.1.250.0040.00428.09
8.1.240.0080.00323.68
8.1.230.0070.00417.71
8.1.220.0000.00717.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0000.00817.23
8.1.180.0000.00818.10
8.1.170.0060.00318.50
8.1.160.0040.00418.88
8.1.150.0000.00718.84
8.1.140.0040.00419.58
8.1.130.0030.00517.57
8.1.120.0040.00417.32
8.1.110.0000.00717.37
8.1.100.0020.00517.43
8.1.90.0030.00317.44
8.1.80.0040.00317.49
8.1.70.0030.00617.32
8.1.60.0000.00717.55
8.1.50.0040.00417.48
8.1.40.0060.00317.47
8.1.30.0030.00517.54
8.1.20.0080.00017.51
8.1.10.0000.00717.53
8.1.00.0050.00317.40
8.0.300.0000.00918.77
8.0.290.0000.00716.75
8.0.280.0040.00418.33
8.0.270.0000.00817.24
8.0.260.0030.00317.16
8.0.250.0070.00016.88
8.0.240.0000.00616.93
8.0.230.0030.00316.91
8.0.220.0070.00016.88
8.0.210.0040.00416.81
8.0.200.0030.00316.95
8.0.190.0050.00216.94
8.0.180.0030.00316.92
8.0.170.0000.00816.81
8.0.160.0000.00816.90
8.0.150.0040.00416.87
8.0.140.0050.00216.84
8.0.130.0040.00413.31
8.0.120.0070.00316.91
8.0.110.0000.00716.79
8.0.100.0080.00016.73
8.0.90.0000.00716.75
8.0.80.0030.01516.83
8.0.70.0050.00216.73
8.0.60.0040.00416.79
8.0.50.0040.00416.75
8.0.30.0100.01017.11
8.0.20.0100.00917.40
8.0.10.0040.00416.95
8.0.00.0030.01316.70
7.4.330.0020.00215.08
7.4.320.0030.00316.49
7.4.300.0030.00316.59
7.4.290.0030.00316.50
7.4.280.0040.00416.43
7.4.270.0030.00316.64
7.4.260.0070.00016.51
7.4.250.0070.00016.35
7.4.240.0000.00716.51
7.4.230.0090.00016.50
7.4.220.0070.01116.59
7.4.210.0070.00716.63
7.4.200.0000.00716.59
7.4.160.0070.00716.34
7.4.150.0090.00917.40
7.4.140.0110.01017.86
7.4.130.0100.00616.44
7.4.120.0140.00316.34
7.4.110.0070.01016.57
7.4.100.0110.01416.43
7.4.90.0130.00416.52
7.4.80.0140.00719.39
7.4.70.0070.01016.70
7.4.60.0130.00716.50
7.4.50.0110.00416.56
7.4.40.0130.00316.42
7.4.30.0100.00616.42
7.4.00.0110.00715.08
7.3.330.0030.00313.10
7.3.320.0030.00312.93
7.3.310.0000.00716.13
7.3.300.0070.00016.23
7.3.290.0030.00316.02
7.3.280.0030.01516.22
7.3.270.0140.00317.40
7.3.260.0070.01416.32
7.3.250.0110.00916.30
7.3.240.0080.01016.30
7.3.230.0090.00616.39
7.3.210.0080.00916.57
7.3.200.0000.01919.39
7.3.190.0030.01916.38
7.3.180.0120.00416.26
7.3.170.0160.00816.59
7.3.160.0030.01316.12
7.2.330.0150.01216.29
7.2.320.0080.01116.71
7.2.310.0120.00916.52
7.2.300.0070.01016.33
7.2.290.0160.00016.41
7.2.60.0090.00316.51
7.2.00.0030.01218.99
7.1.200.0060.00915.95
7.1.100.0040.00717.95
7.1.70.0040.00417.21
7.1.60.0100.01419.54
7.1.00.0030.07322.33
7.0.200.0000.01016.81
7.0.60.0130.05319.95
7.0.50.0230.05720.43
7.0.40.0100.05720.28
7.0.30.0270.06020.28
7.0.20.0330.05320.43
7.0.10.0200.06020.21
7.0.00.0200.06320.33
5.6.280.0070.06720.81
5.6.210.0170.05320.65
5.6.200.0300.05321.11
5.6.190.0270.06021.05
5.6.180.0170.05321.01
5.6.170.0370.04721.04
5.6.160.0200.06021.05
5.6.150.0200.06021.03
5.6.140.0230.05721.11
5.6.130.0100.07321.02
5.6.120.0100.06320.99
5.6.110.0230.05321.05
5.6.100.0230.05721.15
5.6.90.0170.06320.93
5.6.80.0130.05720.41
5.6.70.0230.05720.40
5.6.60.0230.05720.42
5.6.50.0170.06320.33
5.6.40.0370.03720.38
5.6.30.0300.05020.42
5.6.20.0230.05020.44
5.6.10.0200.06020.55
5.6.00.0270.05020.37
5.5.350.0230.05320.53
5.5.340.0200.05720.95
5.5.330.0100.06020.72
5.5.320.0100.05720.86
5.5.310.0300.07320.79
5.5.300.0330.05720.80
5.5.290.0230.06020.72
5.5.280.0170.05321.02
5.5.270.0200.06721.02
5.5.260.0200.06320.85
5.5.250.0270.05320.63
5.5.240.0170.06320.20
5.5.230.0200.07020.24
5.5.220.0230.06020.04
5.5.210.0230.05720.17
5.5.200.0330.05320.17
5.5.190.0270.05320.20
5.5.180.0230.06020.08
5.5.160.0230.05320.14
5.5.150.0170.06320.34
5.5.140.0300.04320.38
5.5.130.0170.05720.11
5.5.120.0200.06320.05
5.5.110.0270.05020.20
5.5.100.0370.06720.24
5.5.90.0270.05320.27
5.5.80.0370.04320.06
5.5.70.0200.06020.09
5.5.60.0200.06320.05
5.5.50.0330.04720.02
5.5.40.0270.05020.08
5.5.30.0200.05720.05
5.5.20.0230.06020.25
5.5.10.0100.06020.13
5.5.00.0130.05319.95

preferences:
60.2 ms | 401 KiB | 5 Q