3v4l.org

run code in 300+ PHP versions simultaneously
<?php $prenom = 'éo marie chéarles'; $nom = 'Léa Maji'; $prenomEnMinuscule = mb_strtolower($prenom, 'utf8'); $prenom = mb_substr($prenomEnMinuscule, 0, 1, 'utf8').mb_substr($prenomEnMinuscule, 1, null, 'utf8'); echo $prenom.' '.mb_strtoupper($nom, 'utf8');

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)
8.3.60.0120.00318.05
8.3.50.0140.00421.18
8.3.40.0040.01118.50
8.3.30.0090.00619.00
8.3.20.0070.00020.21
8.3.10.0040.00423.66
8.3.00.0040.00419.26
8.2.180.0150.00016.88
8.2.170.0090.00622.96
8.2.160.0130.00320.47
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0030.00622.25
8.2.110.0090.00020.70
8.2.100.0080.00418.34
8.2.90.0090.00019.22
8.2.80.0080.00017.97
8.2.70.0060.00317.75
8.2.60.0080.00018.15
8.2.50.0030.00618.07
8.2.40.0080.00019.94
8.2.30.0000.00718.10
8.2.20.0040.00417.78
8.2.10.0040.00418.13
8.2.00.0040.00717.89
8.1.280.0090.00625.92
8.1.270.0090.00022.02
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0060.00324.06
8.1.230.0110.00019.14
8.1.220.0000.00817.80
8.1.210.0000.00818.77
8.1.200.0030.00617.48
8.1.190.0040.00417.50
8.1.180.0000.00718.10
8.1.170.0040.00418.91
8.1.160.0070.00022.20
8.1.150.0000.00719.12
8.1.140.0070.00017.68
8.1.130.0070.00018.06
8.1.120.0040.00417.62
8.1.110.0000.00817.55
8.1.100.0080.00017.60
8.1.90.0100.00017.52
8.1.80.0040.00417.63
8.1.70.0040.00417.46
8.1.60.0000.00817.70
8.1.50.0000.00817.69
8.1.40.0060.00317.63
8.1.30.0030.00517.79
8.1.20.0070.00017.83
8.1.10.0000.00717.67
8.1.00.0030.00617.70
8.0.300.0060.00318.77
8.0.290.0000.00716.75
8.0.280.0030.00318.62
8.0.270.0000.00717.42
8.0.260.0030.00317.35
8.0.250.0050.00317.05
8.0.240.0030.00317.05
8.0.230.0000.00817.05
8.0.220.0000.00717.03
8.0.210.0040.00417.08
8.0.200.0050.00216.93
8.0.190.0090.00017.00
8.0.180.0000.00716.93
8.0.170.0040.00417.02
8.0.160.0000.00817.01
8.0.150.0040.00417.05
8.0.140.0000.00816.92
8.0.130.0040.00413.49
8.0.120.0000.00817.02
8.0.110.0030.00316.89
8.0.100.0040.00416.95
8.0.90.0070.00016.82
8.0.80.0130.00317.03
8.0.70.0040.00416.80
8.0.60.0000.00717.06
8.0.50.0000.00716.78
8.0.30.0110.00817.05
8.0.20.0080.01117.40
8.0.10.0050.00316.96
8.0.00.0100.00916.87
7.4.330.0050.00015.15
7.4.320.0000.00616.61
7.4.300.0000.00616.62
7.4.290.0070.00016.60
7.4.280.0080.00016.55
7.4.270.0030.00316.54
7.4.260.0000.00716.57
7.4.250.0040.00416.58
7.4.240.0000.00716.56
7.4.230.0000.00716.64
7.4.220.0030.02016.49
7.4.210.0000.01516.51
7.4.200.0070.00016.48
7.4.160.0120.00316.55
7.4.150.0060.01817.40
7.4.140.0120.00917.86
7.4.130.0110.01016.66
7.4.120.0120.00416.53
7.4.110.0140.00716.54
7.4.100.0070.01416.66
7.4.90.0070.01016.64
7.4.80.0060.01119.39
7.4.70.0100.01016.71
7.4.60.0080.00816.43
7.4.50.0050.00316.27
7.4.40.0150.00916.58
7.4.30.0070.01016.56
7.4.00.0050.00914.97
7.3.330.0060.00013.19
7.3.320.0000.00513.42
7.3.310.0000.00716.39
7.3.300.0070.00016.42
7.3.290.0080.00716.47
7.3.280.0090.00716.41
7.3.270.0090.00917.40
7.3.260.0210.00316.55
7.3.250.0080.00816.49
7.3.240.0040.01216.34
7.3.230.0030.01316.43
7.3.210.0140.00616.58
7.3.200.0150.00619.39
7.3.190.0130.00416.57
7.3.180.0160.00516.54
7.3.170.0060.01016.54
7.3.160.0100.01016.39
7.3.120.0080.00814.67
7.3.110.0060.01215.19
7.3.100.0060.00614.55
7.3.90.0090.00614.86
7.3.80.0070.00714.91
7.3.70.0040.01114.93
7.3.60.0100.00715.00
7.3.50.0040.00414.72
7.3.40.0090.00614.88
7.3.30.0090.00314.71
7.3.20.0030.00616.96
7.3.10.0090.00616.72
7.3.00.0030.00716.82
7.2.330.0040.01516.77
7.2.320.0080.00816.41
7.2.310.0130.01016.80
7.2.300.0040.01216.85
7.2.290.0060.01216.68
7.2.250.0070.01015.18
7.2.240.0060.01215.12
7.2.230.0120.00315.09
7.2.220.0060.00915.23
7.2.210.0060.01015.35
7.2.200.0080.00815.26
7.2.190.0100.00714.96
7.2.180.0030.01215.18
7.2.170.0040.00815.09
7.2.00.0060.00919.68
7.1.330.0030.01016.02
7.1.320.0030.00516.02
7.1.310.0000.01315.83
7.1.300.0090.00615.90
7.1.290.0030.01015.95
7.1.280.0040.01115.82
7.1.270.0100.00715.66
7.1.260.0090.00015.94
7.1.100.0060.00617.75
7.1.70.0030.00717.34
7.1.60.0070.00719.11
7.1.50.0100.01317.14
7.1.00.0100.07022.43
7.0.200.0030.00516.95
7.0.140.0030.07322.15
7.0.60.0070.08319.75
7.0.50.0070.07717.89
7.0.40.0030.08320.40
7.0.30.0270.08020.01
7.0.20.0270.04720.20
7.0.10.0100.06020.20
7.0.00.0000.05020.01
5.6.280.0030.07320.86
5.6.210.0030.05720.73
5.6.200.0030.08018.08
5.6.190.0170.07020.60
5.6.180.0200.04020.27
5.6.170.0270.06320.47
5.6.160.0130.08020.50
5.6.150.0100.07718.18
5.6.140.0070.04018.21
5.6.130.0070.08018.13
5.6.120.0130.07721.02
5.6.110.0100.03320.87
5.6.100.0100.07320.95
5.6.90.0130.08020.87
5.6.80.0070.04720.49
5.6.70.0030.04020.45
5.5.350.0100.08320.31
5.5.340.0130.06717.89
5.5.330.0030.05320.47
5.5.320.0170.06020.24
5.5.310.0200.04320.32
5.5.300.0130.07317.91
5.5.290.0130.05317.94
5.5.280.0100.07720.63
5.5.270.0000.04720.96
5.5.260.0070.04320.75
5.5.250.0170.07020.68
5.5.240.0200.06020.06
5.4.450.0900.06319.45
5.4.440.1030.06019.27
5.4.430.0570.05719.13
5.4.420.0630.00019.15
5.4.410.0630.00019.38
5.4.400.0630.00019.02
5.4.390.0630.00019.08
5.4.380.0630.00019.07
5.4.370.0630.00019.26
5.4.360.0700.00019.09
5.4.350.0630.00019.16
5.4.340.0050.03711.97
5.4.320.0050.03812.45
5.4.310.0030.04212.45
5.4.300.0110.03212.45
5.4.290.0090.03512.45
5.4.280.0100.03212.35
5.4.270.0070.03512.35
5.4.260.0050.04012.34
5.4.250.0080.03612.34
5.4.240.0050.03712.34
5.4.230.0080.03612.34
5.4.220.0040.03812.34
5.4.210.0060.03512.34
5.4.200.0050.03812.34
5.4.190.0060.03512.34
5.4.180.0040.03712.33
5.4.170.0100.05312.34
5.4.160.0070.04712.34
5.4.150.0050.04112.34
5.4.140.0050.03712.02
5.4.130.0070.03312.01
5.4.120.0070.03711.96
5.4.110.0060.03511.96
5.4.100.0050.03611.96
5.4.90.0030.03911.96
5.4.80.0040.04011.96
5.4.70.0040.03611.96
5.4.60.0100.03811.96
5.4.50.0050.03811.96
5.4.40.0050.03511.95
5.4.30.0070.03511.95
5.4.20.0110.04611.95
5.4.10.0100.04411.95
5.4.00.0040.03911.44
5.3.290.0070.03912.80
5.3.280.0060.03812.71
5.3.270.0060.04412.72
5.3.260.0060.04612.72
5.3.250.0050.03812.72
5.3.240.0050.03912.72
5.3.230.0050.03812.71
5.3.220.0090.03612.68
5.3.210.0050.04012.68
5.3.200.0080.03512.68
5.3.190.0050.04212.68
5.3.180.0050.03912.67
5.3.170.0050.03812.67
5.3.160.0060.03512.67
5.3.150.0030.03912.67
5.3.140.0100.03412.66
5.3.130.0080.03812.65
5.3.120.0090.03612.66
5.3.110.0050.04012.66
5.3.100.0060.03712.12
5.3.90.0100.03312.08
5.3.80.0090.03812.08
5.3.70.0060.03512.08
5.3.60.0040.03712.06
5.3.50.0060.03612.00
5.3.40.0040.03812.00
5.3.30.0080.03211.95
5.3.20.0090.03711.72
5.3.10.0040.04011.69
5.3.00.0060.03711.68
5.2.170.0060.0349.18
5.2.160.0050.0299.18
5.2.150.0090.0289.18
5.2.140.0070.0319.17
5.2.130.0050.0339.13
5.2.120.0050.0319.14
5.2.110.0040.0319.14
5.2.100.0020.0339.14
5.2.90.0070.0279.14
5.2.80.0020.0349.14
5.2.70.0060.0299.14
5.2.60.0040.0309.09
5.2.50.0070.0279.05
5.2.40.0060.0279.04
5.2.30.0010.0339.01
5.2.20.0040.0299.00
5.2.10.0070.0258.92
5.2.00.0040.0298.78
5.1.60.0060.0228.06
5.1.50.0060.0238.05
5.1.40.0030.0258.04
5.1.30.0060.0258.39
5.1.20.0100.0218.41
5.1.10.0050.0308.13
5.1.00.0040.0268.14
5.0.50.0030.0206.62
5.0.40.0010.0216.47
5.0.30.0030.0346.29
5.0.20.0030.0196.26
5.0.10.0060.0176.23
5.0.00.0050.0286.23
4.4.90.0060.0134.77
4.4.80.0040.0144.76
4.4.70.0020.0164.75
4.4.60.0020.0164.76
4.4.50.0010.0174.77
4.4.40.0050.0234.71
4.4.30.0050.0134.76
4.4.20.0040.0174.85
4.4.10.0020.0164.85
4.4.00.0040.0234.76
4.3.110.0010.0174.67
4.3.100.0030.0154.67
4.3.90.0000.0174.64
4.3.80.0010.0264.58
4.3.70.0030.0144.63
4.3.60.0010.0174.63
4.3.50.0030.0154.63
4.3.40.0050.0214.54
4.3.30.0030.0153.28
4.3.20.0020.0163.26
4.3.10.0020.0153.21
4.3.00.0030.0206.95

preferences:
72.77 ms | 401 KiB | 5 Q