3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo mb_substr("aaa.b", ".");

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)
8.3.40.0070.00718.84
8.3.30.0070.00718.92
8.3.20.0040.00420.21
8.3.10.0000.00823.73
8.3.00.0070.00318.98
8.2.170.0030.01422.96
8.2.160.0100.00320.35
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0060.00319.23
8.2.110.0080.00022.11
8.2.100.0070.00417.97
8.2.90.0060.00319.05
8.2.80.0050.00317.97
8.2.70.0040.00717.63
8.2.60.0050.00317.80
8.2.50.0030.00618.07
8.2.40.0090.00318.03
8.2.30.0000.00818.09
8.2.20.0070.00017.67
8.2.10.0030.00517.98
8.2.00.0060.00319.46
8.1.270.0000.00823.91
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0070.00323.98
8.1.230.0000.01119.01
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0000.00917.23
8.1.190.0080.00017.10
8.1.180.0030.00618.10
8.1.170.0060.00318.57
8.1.160.0040.00421.92
8.1.150.0040.00418.49
8.1.140.0050.00317.31
8.1.130.0070.00017.76
8.1.120.0000.00717.21
8.1.110.0000.00717.28
8.1.100.0000.00717.31
8.1.90.0070.00017.25
8.1.80.0070.00217.16
8.1.70.0030.00317.25
8.1.60.0000.00717.47
8.1.50.0040.00417.34
8.1.40.0040.00417.34
8.1.30.0030.00517.52
8.1.20.0040.00417.48
8.1.10.0070.00017.54
8.1.00.0050.00217.44
8.0.300.0080.00018.77
8.0.290.0030.00616.63
8.0.280.0040.00418.43
8.0.270.0040.00417.25
8.0.260.0030.00317.09
8.0.250.0040.00416.96
8.0.240.0090.00016.91
8.0.230.0000.00716.92
8.0.220.0030.00316.80
8.0.210.0030.00416.86
8.0.200.0030.00316.92
8.0.190.0020.00516.83
8.0.180.0040.00416.87
8.0.170.0030.00516.89
8.0.160.0040.00416.80
8.0.150.0050.00516.75
8.0.140.0050.00216.84
8.0.130.0050.00013.27
8.0.120.0000.00816.87
8.0.110.0000.00816.78
8.0.100.0050.00216.94
8.0.90.0000.00716.66
8.0.80.0090.00616.90
8.0.70.0030.00516.71
8.0.60.0000.00716.92
8.0.50.0070.00016.82
8.0.30.0150.00417.05
8.0.20.0060.01317.40
8.0.10.0040.00416.73
8.0.00.0090.00916.76
7.4.330.0030.00315.00
7.4.320.0000.00616.45
7.4.300.0000.00616.35
7.4.290.0030.00316.33
7.4.280.0000.00716.34
7.4.270.0000.00716.41
7.4.260.0000.00716.44
7.4.250.0000.00816.43
7.4.240.0040.00316.44
7.4.230.0030.00316.36
7.4.220.0070.01116.48
7.4.210.0060.01316.37
7.4.200.0070.00016.44
7.4.160.0110.00716.62
7.4.150.0100.01017.40
7.4.140.0080.01017.86
7.4.130.0090.01116.24
7.4.120.0110.00716.47
7.4.110.0060.01016.35
7.4.100.0070.01316.41
7.4.90.0070.01016.41
7.4.80.0140.00719.39
7.4.70.0140.00416.41
7.4.60.0090.00916.27
7.4.50.0040.00416.48
7.4.40.0080.00816.39
7.4.30.0090.00616.48
7.4.00.0070.01014.96
7.3.330.0000.00713.02
7.3.320.0020.00213.03
7.3.310.0030.00316.34
7.3.300.0000.00616.09
7.3.290.0080.00816.13
7.3.280.0070.01016.19
7.3.270.0120.00617.40
7.3.260.0100.00716.45
7.3.250.0080.00816.23
7.3.240.0100.00716.43
7.3.230.0090.00916.39
7.3.210.0040.01516.09
7.3.200.0070.01019.39
7.3.190.0130.00316.25
7.3.180.0120.00316.27
7.3.170.0120.00316.27
7.3.160.0060.01016.30
7.3.120.0070.00714.75
7.3.110.0030.01114.59
7.3.100.0070.01114.70
7.3.90.0060.00814.63
7.3.80.0060.00614.66
7.3.70.0060.00314.62
7.3.60.0110.00014.52
7.3.50.0090.00614.80
7.3.40.0030.01014.53
7.3.30.0040.01214.77
7.3.20.0090.00616.63
7.3.10.0080.00816.56
7.3.00.0090.00416.42
7.2.330.0150.00316.61
7.2.320.0160.00316.48
7.2.310.0100.01116.20
7.2.300.0090.00916.25
7.2.290.0040.01216.33
7.2.250.0100.00715.02
7.2.240.0060.00614.98
7.2.230.0060.01214.69
7.2.220.0030.01215.14
7.2.210.0040.01114.84
7.2.200.0080.00514.52
7.2.190.0090.00614.80
7.2.180.0000.01014.83
7.2.170.0050.00514.98
7.2.130.0070.00716.53
7.2.120.0050.01116.28
7.2.110.0080.00516.31
7.2.100.0030.00916.48
7.2.90.0100.00216.53
7.2.80.0060.00916.41
7.2.70.0070.00716.75
7.2.60.0070.00816.47
7.2.50.0140.00216.58
7.2.40.0110.00416.44
7.2.30.0090.00716.63
7.2.20.0060.01116.48
7.2.10.0110.00816.36
7.2.00.0080.00917.45
7.1.330.0030.01315.52
7.1.320.0030.01315.77
7.1.310.0140.00315.60
7.1.300.0110.00315.67
7.1.290.0030.01515.63
7.1.280.0000.01315.52
7.1.270.0070.00715.68
7.1.260.0060.01015.45
7.1.250.0020.01215.38
7.1.200.0040.01115.27
7.1.100.0060.00618.27
7.1.70.0000.00716.74
7.1.60.0070.01319.70
7.1.50.0060.01816.89
7.1.00.0070.07322.45
7.0.200.0030.00516.14
7.0.140.0030.07321.96
7.0.60.0100.08020.02
7.0.50.0030.08317.82
7.0.40.0130.07720.07
7.0.30.0300.03720.18
7.0.20.0330.03020.20
7.0.10.0100.04720.09
7.0.00.0070.07020.17
5.6.280.0100.06721.01
5.6.210.0070.08320.66
5.6.200.0000.08718.08
5.6.190.0000.04720.27
5.6.180.0100.07320.41
5.6.170.0270.07020.52
5.6.160.0070.07020.41
5.6.150.0100.06318.20
5.6.140.0100.03318.21
5.6.130.0130.07318.21
5.6.120.0130.08321.11
5.6.110.0130.06020.88
5.6.100.0230.06720.88
5.6.90.0130.07721.09
5.6.80.0170.06320.52
5.6.70.0300.06320.50
5.5.350.0000.06320.39
5.5.340.0030.04017.96
5.5.330.0070.05320.20
5.5.320.0300.08020.32
5.5.310.0330.05020.24
5.5.300.0100.08018.00
5.5.290.0030.06717.91
5.5.280.0030.05320.88
5.5.270.0070.05320.77
5.5.260.0000.04720.86
5.5.250.0170.06320.70
5.5.240.0030.07720.18
5.4.450.0400.03731.27
5.4.440.0270.05029.33
5.4.430.0270.05329.29
5.4.420.0270.04029.29
5.4.410.0630.02729.26
5.4.400.0370.03328.64
5.4.390.0330.05026.62
5.4.380.0270.05718.50
5.4.370.0330.05018.56
5.4.360.0430.05018.61
5.4.350.0400.05018.55
5.4.340.0330.05018.67
5.4.320.0070.03912.45
5.4.310.0070.03512.45
5.4.300.0060.03612.45
5.4.290.0090.03912.45
5.4.280.0050.03612.34
5.4.270.0030.03812.35
5.4.260.0100.03312.34
5.4.250.0050.03812.34
5.4.240.0030.03912.35
5.4.230.0050.03812.34
5.4.220.0110.03712.34
5.4.210.0040.03712.34
5.4.200.0070.04312.34
5.4.190.0030.03812.33
5.4.180.0080.04012.34
5.4.170.0040.03712.35
5.4.160.0090.03312.34
5.4.150.0100.03712.34
5.4.140.0090.03612.02
5.4.130.0070.03412.01
5.4.120.0070.03511.97
5.4.110.0060.03511.96
5.4.100.0040.03611.96
5.4.90.0070.04111.96
5.4.80.0060.03811.96
5.4.70.0040.03611.96
5.4.60.0080.03511.96
5.4.50.0060.03911.96
5.4.40.0060.03411.95
5.4.30.0090.03911.95
5.4.20.0060.04211.95
5.4.10.0050.03511.95
5.4.00.0030.03811.44
5.3.290.0090.03912.80
5.3.280.0050.03812.70
5.3.270.0060.03912.72
5.3.260.0040.04112.72
5.3.250.0060.04412.72
5.3.240.0080.03812.72
5.3.230.0040.04012.71
5.3.220.0070.03812.68
5.3.210.0060.03912.68
5.3.200.0050.03712.68
5.3.190.0060.03712.68
5.3.180.0070.03612.67
5.3.170.0050.03912.67
5.3.160.0120.03112.68
5.3.150.0090.03512.68
5.3.140.0090.03512.66
5.3.130.0030.04212.66
5.3.120.0050.04012.66
5.3.110.0070.04012.65
5.3.100.0040.03912.12
5.3.90.0090.03512.08
5.3.80.0050.03812.07
5.3.70.0050.03812.07
5.3.60.0060.04112.06
5.3.50.0040.03812.00
5.3.40.0090.03412.00
5.3.30.0070.03611.94
5.3.20.0050.03911.71
5.3.10.0080.03211.69
5.3.00.0100.03211.68
5.2.170.0040.0319.17
5.2.160.0030.0319.17
5.2.150.0060.0389.17
5.2.140.0050.0319.17
5.2.130.0030.0379.13
5.2.120.0060.0279.13
5.2.110.0030.0319.14
5.2.100.0020.0319.13
5.2.90.0060.0289.13
5.2.80.0060.0309.13
5.2.70.0070.0289.13
5.2.60.0040.0319.09
5.2.50.0080.0289.05
5.2.40.0030.0319.04
5.2.30.0040.0309.00
5.2.20.0060.0278.99
5.2.10.0070.0258.92
5.2.00.0030.0308.77
5.1.60.0060.0218.05
5.1.50.0020.0268.05
5.1.40.0060.0228.04
5.1.30.0050.0258.39
5.1.20.0050.0258.41
5.1.10.0040.0278.13
5.1.00.0090.0208.13
5.0.50.0050.0186.61
5.0.40.0040.0186.47
5.0.30.0020.0336.28
5.0.20.0050.0176.25
5.0.10.0030.0206.23
5.0.00.0020.0356.23
4.4.90.0010.0174.77
4.4.80.0020.0164.75
4.4.70.0020.0194.75
4.4.60.0020.0184.76
4.4.50.0040.0194.77
4.4.40.0030.0294.70
4.4.30.0050.0134.76
4.4.20.0020.0164.84
4.4.10.0020.0164.85
4.4.00.0020.0254.76
4.3.110.0000.0184.67
4.3.100.0030.0154.67
4.3.90.0030.0144.64
4.3.80.0030.0244.58
4.3.70.0010.0164.63
4.3.60.0030.0144.63
4.3.50.0030.0154.62
4.3.40.0040.0244.54
4.3.30.0020.0173.28
4.3.20.0020.0173.25
4.3.10.0030.0163.21
4.3.00.0100.01025.25

preferences:
37.17 ms | 400 KiB | 5 Q