3v4l.org

run code in 300+ PHP versions simultaneously
<?php $blah = mb_strlen(array()); echo ($blah === null) ? "true" : "false";

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)
8.3.60.0070.01418.64
8.3.50.0110.01021.18
8.3.40.0090.00618.84
8.3.30.0080.00818.77
8.3.20.0040.00420.21
8.3.10.0030.00621.60
8.3.00.0050.00223.70
8.2.180.0150.00018.29
8.2.170.0060.00922.96
8.2.160.0000.01420.35
8.2.150.0030.00624.18
8.2.140.0000.00824.66
8.2.130.0080.00021.12
8.2.120.0000.00826.35
8.2.110.0090.00019.45
8.2.100.0080.00417.78
8.2.90.0000.00819.05
8.2.80.0030.00517.97
8.2.70.0040.00417.50
8.2.60.0040.00417.80
8.2.50.0060.00618.09
8.2.40.0040.00421.92
8.2.30.0030.00319.42
8.2.20.0040.00417.64
8.2.10.0040.00417.98
8.2.00.0040.00418.04
8.1.280.0090.00625.92
8.1.270.0090.00921.93
8.1.260.0000.00828.09
8.1.250.0000.00728.09
8.1.240.0040.00421.33
8.1.230.0070.00317.45
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0050.00517.35
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0030.00618.46
8.1.160.0050.00320.63
8.1.150.0000.01018.75
8.1.140.0030.00519.38
8.1.130.0090.00017.43
8.1.120.0000.00717.33
8.1.110.0040.00417.30
8.1.100.0050.00317.24
8.1.90.0030.00517.36
8.1.80.0000.01117.28
8.1.70.0030.00317.22
8.1.60.0000.00717.39
8.1.50.0040.00417.41
8.1.40.0060.00617.43
8.1.30.0040.00417.56
8.1.20.0030.00617.45
8.1.10.0060.00317.33
8.1.00.0040.00417.41
8.0.300.0050.00218.77
8.0.290.0030.00616.63
8.0.280.0000.00718.28
8.0.270.0030.00517.20
8.0.260.0030.00317.18
8.0.250.0060.00016.96
8.0.240.0030.00517.01
8.0.230.0060.00017.00
8.0.220.0070.00016.92
8.0.210.0030.00516.88
8.0.200.0030.00316.82
8.0.190.0050.00316.87
8.0.180.0100.00216.94
8.0.170.0050.00316.91
8.0.160.0070.00016.84
8.0.150.0000.00716.87
8.0.140.0030.00316.80
8.0.130.0060.00013.31
8.0.120.0040.00416.74
8.0.110.0000.00716.92
8.0.100.0080.00016.87
8.0.90.0050.00216.79
8.0.80.0040.01116.91
8.0.70.0020.00516.81
8.0.60.0070.00016.79
8.0.50.0000.00816.89
8.0.30.0100.00717.10
8.0.20.0080.01217.40
8.0.10.0040.00416.86
8.0.00.0070.01116.66
7.4.330.0020.00216.73
7.4.320.0030.00316.63
7.4.300.0050.00316.39
7.4.290.0030.00316.48
7.4.280.0040.00416.47
7.4.270.0030.00316.56
7.4.260.0000.00716.43
7.4.250.0000.00716.40
7.4.240.0000.00716.57
7.4.230.0080.00016.70
7.4.220.0070.01116.45
7.4.210.0070.00716.58
7.4.200.0030.00316.32
7.4.160.0060.00916.48
7.4.150.0150.00917.40
7.4.140.0090.01217.86
7.4.130.0140.00616.48
7.4.120.0080.00816.62
7.4.110.0130.00716.57
7.4.100.0110.00616.64
7.4.90.0140.00516.47
7.4.80.0130.00419.39
7.4.70.0060.01016.55
7.4.60.0060.00916.59
7.4.50.0100.00716.57
7.4.40.0170.00016.41
7.4.30.0200.00316.37
7.4.00.0070.01014.65
7.3.330.0000.00713.16
7.3.320.0040.00413.19
7.3.310.0000.00716.33
7.3.300.0030.00316.24
7.3.290.0070.00016.20
7.3.280.0080.00816.24
7.3.270.0040.01417.40
7.3.260.0120.00916.22
7.3.250.0130.00316.23
7.3.240.0090.00716.33
7.3.230.0140.00316.39
7.3.210.0140.00316.44
7.3.200.0080.01119.39
7.3.190.0030.01416.27
7.3.180.0120.00816.33
7.3.170.0120.00816.43
7.3.160.0170.00316.41
7.2.330.0040.01516.68
7.2.320.0060.00916.70
7.2.310.0040.01216.48
7.2.300.0130.00616.54
7.2.290.0160.00016.44
7.2.60.0040.00816.69
7.2.00.0000.01319.18
7.1.200.0060.00315.59
7.1.100.0000.01118.18
7.1.70.0030.01016.80
7.1.60.0060.01919.40
7.1.50.0030.00716.58
7.1.00.0070.07022.43
7.0.200.0520.00614.48
7.0.100.0070.08019.82
7.0.90.0030.07719.88
7.0.80.0070.04719.81
7.0.70.0370.07319.93
7.0.60.0030.04719.81
7.0.50.0100.04320.31
7.0.40.0130.08320.06
7.0.30.0070.07720.07
7.0.20.0130.07720.00
7.0.10.0070.08320.05
7.0.00.0070.07720.06
5.6.280.0000.06321.10
5.6.250.0100.07320.66
5.6.240.0200.07320.55
5.6.230.0130.04320.57
5.6.220.0200.07020.50
5.6.210.0200.07020.46
5.6.200.0070.07321.07
5.6.190.0070.08321.02
5.6.180.0070.05021.02
5.6.170.0070.08021.00
5.6.160.0100.05021.03
5.6.150.0130.08021.05
5.6.140.0070.07320.93
5.6.130.0270.05020.99
5.6.120.0130.07320.87
5.6.110.0100.05020.99
5.6.100.0130.07321.04
5.6.90.0100.08021.00
5.6.80.0030.04020.45
5.6.70.0100.04020.38
5.6.60.0070.03720.36
5.6.50.0000.04320.35
5.6.40.0030.04020.48
5.6.30.0030.04020.33
5.6.20.0070.03720.34
5.6.10.0100.04020.31
5.6.00.0000.04320.34
5.5.380.0170.05320.29
5.5.370.0070.08320.34
5.5.360.0000.09320.29
5.5.350.0100.07720.41
5.5.340.0070.04020.81
5.5.330.0130.07720.79
5.5.320.0030.08320.59
5.5.310.0200.03720.84
5.5.300.0070.06020.84
5.5.290.0000.08320.85
5.5.280.0070.06020.86
5.5.270.0070.08020.78
5.5.260.0070.05320.82
5.5.250.0030.04320.62
5.5.240.0130.05720.09
5.5.230.0000.04320.09
5.5.220.0070.03720.12
5.5.210.0100.03320.07
5.5.200.0030.04320.13
5.5.190.0100.03720.16
5.5.180.0000.04320.13
5.5.160.0130.06320.19
5.5.150.0130.07320.03
5.5.140.0070.07320.21
5.5.130.0030.03720.17
5.5.120.0130.06720.07
5.5.110.0130.06720.06
5.5.100.0030.06320.07
5.5.90.0000.05020.02
5.5.80.0030.07020.11
5.5.70.0030.06720.04
5.5.60.0100.04320.11
5.5.50.0030.04720.08
5.5.40.0100.04720.00
5.5.30.0030.04020.04
5.5.20.0000.05320.00
5.5.10.0000.04320.02
5.5.00.0100.03719.92

preferences:
48.42 ms | 401 KiB | 5 Q