3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace Test; function callIsNull($arg) { return is_null($arg); } var_dump(is_null(null)); eval(' namespace Test; function is_null($arg) { return false; } '); var_dump(callIsNull(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)
8.3.60.0070.01318.19
8.3.50.0100.01021.96
8.3.40.0130.00718.61
8.3.30.0130.00618.61
8.3.20.0080.00019.25
8.3.10.0040.00421.69
8.3.00.0040.00421.00
8.2.180.0110.00416.50
8.2.170.0170.00322.96
8.2.160.0070.00719.16
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00420.35
8.2.120.0080.00026.35
8.2.110.0030.01421.17
8.2.100.0110.00017.59
8.2.90.0050.00220.50
8.2.80.0000.00817.97
8.2.70.0090.00017.80
8.2.60.0080.00018.04
8.2.50.0080.00018.10
8.2.40.0000.00820.42
8.2.30.0050.00219.25
8.2.20.0000.00717.50
8.2.10.0040.00417.95
8.2.00.0040.00417.91
8.1.280.0120.00625.92
8.1.270.0170.00023.91
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0090.00023.98
8.1.230.0040.00820.90
8.1.220.0040.00417.74
8.1.210.0050.00318.91
8.1.200.0000.00917.22
8.1.190.0040.00417.00
8.1.180.0030.00518.10
8.1.170.0050.00318.55
8.1.160.0000.00718.95
8.1.150.0000.00918.82
8.1.140.0040.00419.51
8.1.130.0000.00817.39
8.1.120.0050.00217.42
8.1.110.0030.00517.29
8.1.100.0030.00317.45
8.1.90.0030.00517.44
8.1.80.0000.00717.43
8.1.70.0000.00717.36
8.1.60.0030.00617.55
8.1.50.0040.00417.49
8.1.40.0030.00617.49
8.1.30.0030.00517.53
8.1.20.0020.00517.45
8.1.10.0040.00417.36
8.1.00.0040.00417.37
8.0.300.0060.00320.02
8.0.290.0040.00416.63
8.0.280.0070.00018.41
8.0.270.0040.00417.27
8.0.260.0030.00316.82
8.0.250.0070.00016.81
8.0.240.0070.00016.91
8.0.230.0030.00316.95
8.0.220.0040.00416.79
8.0.210.0000.00716.78
8.0.200.0020.00516.84
8.0.190.0000.01016.95
8.0.180.0000.00716.88
8.0.170.0000.00816.92
8.0.160.0050.00316.73
8.0.150.0040.00416.81
8.0.140.0000.00816.77
8.0.130.0030.00313.32
8.0.120.0030.00516.83
8.0.110.0030.00516.88
8.0.100.0040.00416.86
8.0.90.0000.00716.82
8.0.80.0000.01416.77
8.0.70.0030.00517.00
8.0.60.0040.00416.85
8.0.50.0040.00416.84
8.0.30.0120.00616.99
8.0.20.0130.00517.40
8.0.10.0050.00216.82
8.0.00.0100.00716.62
7.4.330.0000.00415.08
7.4.320.0060.00016.52
7.4.300.0000.00616.59
7.4.290.0030.00616.41
7.4.280.0030.00616.60
7.4.270.0000.00716.54
7.4.260.0000.00716.48
7.4.250.0050.00316.42
7.4.240.0040.00416.50
7.4.230.0030.00316.67
7.4.220.0070.01516.59
7.4.210.0080.00816.55
7.4.200.0040.00416.61
7.4.160.0090.00616.49
7.4.150.0140.00517.40
7.4.140.0130.00717.86
7.4.130.0110.00616.47
7.4.120.0110.00716.32
7.4.110.0050.01116.53
7.4.100.0040.01316.47
7.4.90.0170.00316.52
7.4.80.0170.00319.39
7.4.70.0120.00616.59
7.4.60.0070.01016.64
7.4.50.0110.00316.40
7.4.40.0040.01316.41
7.4.30.0110.00616.38
7.4.00.0070.01014.88
7.3.330.0020.00213.32
7.3.320.0050.00013.12
7.3.310.0040.00416.23
7.3.300.0040.00416.12
7.3.290.0030.00316.12
7.3.280.0090.00816.22
7.3.270.0110.00717.40
7.3.260.0120.00816.43
7.3.250.0100.01316.38
7.3.240.0090.01316.35
7.3.230.0080.00816.39
7.3.210.0110.00816.47
7.3.200.0090.00916.18
7.3.190.0100.01316.24
7.3.180.0160.00316.05
7.3.170.0100.00616.43
7.3.160.0130.01016.34
7.2.330.0070.01116.74
7.2.320.0070.01016.40
7.2.310.0110.00916.74
7.2.300.0200.01216.66
7.2.290.0150.00316.69
7.2.60.0060.00916.77
7.2.00.0060.00619.20
7.1.200.0040.00715.67
7.1.100.0930.00415.05
7.1.70.0000.00817.14
7.1.60.0140.01119.47
7.1.00.0000.07722.28
7.0.200.3100.00314.93
7.0.70.1130.08020.16
7.0.60.1170.06719.90
7.0.50.1530.06020.16
7.0.40.1130.06320.32
7.0.30.0970.06320.34
7.0.20.0830.08720.36
7.0.10.0830.05720.19
7.0.00.1170.06720.32
5.6.280.0030.07321.13
5.6.220.0870.06720.46
5.6.210.0930.08320.72
5.6.200.1100.06721.18
5.6.190.1130.08721.17
5.6.180.1030.06321.15
5.6.170.0630.06320.89
5.6.160.0930.07020.99
5.6.150.0800.05721.07
5.6.140.1030.05020.99
5.6.130.0830.07321.18
5.6.120.0830.06721.09
5.6.110.0830.07321.03
5.6.100.1070.07021.05
5.6.90.1030.06721.10
5.6.80.1230.05720.45
5.6.70.1230.08320.38
5.6.60.1070.06320.47
5.6.50.1030.08720.39
5.6.40.1200.06320.43
5.6.30.1230.06020.54
5.6.20.1070.07320.43
5.6.10.1030.07020.46
5.6.00.0970.06320.46
5.5.360.0870.06320.32
5.5.350.0830.06320.48
5.5.340.0970.07020.88
5.5.330.1200.06720.93
5.5.320.1000.06720.93
5.5.310.0630.06020.90
5.5.300.1070.05020.95
5.5.290.1100.06320.81
5.5.280.0200.07720.84
5.5.270.1070.07720.80
5.5.260.1230.07320.89
5.5.250.1130.06020.73
5.5.240.1430.06020.23
5.5.230.1100.08020.28
5.5.220.6930.05720.30
5.5.210.1070.06720.27
5.5.200.1100.07020.28
5.5.190.0900.08320.29
5.5.180.1170.06320.27
5.5.160.0700.07320.19
5.5.150.0900.05320.18
5.5.140.1100.04020.23
5.5.130.0930.06720.04
5.5.120.1000.04320.29
5.5.110.1230.04720.10
5.5.100.1130.07320.13
5.5.90.1300.06020.12
5.5.80.1430.06720.05
5.5.70.1430.07020.13
5.5.60.1270.06019.98
5.5.50.1200.06320.18
5.5.40.1270.06020.12
5.5.30.1300.06020.02
5.5.20.1570.06020.12
5.5.10.1070.06020.11
5.5.00.1070.07320.06

preferences:
64.98 ms | 401 KiB | 5 Q