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($prenomEnMinuscule, 1, strlen($prenom), '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)
8.3.70.0090.00618.30
8.3.60.0070.00718.30
8.3.50.0100.00821.16
8.3.40.0040.01118.41
8.3.30.0090.00619.02
8.3.20.0080.00020.16
8.3.10.0000.00823.61
8.3.00.0060.00319.13
8.2.180.0070.00716.63
8.2.170.0150.00022.96
8.2.160.0100.00720.57
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0030.00526.16
8.2.120.0050.00322.22
8.2.110.0070.00320.79
8.2.100.0000.01218.47
8.2.90.0030.00519.34
8.2.80.0030.00617.97
8.2.70.0080.00017.63
8.2.60.0080.00018.15
8.2.50.0060.00318.07
8.2.40.0030.00620.00
8.2.30.0000.00718.18
8.2.20.0070.00017.73
8.2.10.0040.00418.12
8.2.00.0070.00317.72
8.1.280.0150.00025.92
8.1.270.0080.00822.32
8.1.260.0000.00826.35
8.1.250.0000.00728.09
8.1.240.0030.00624.09
8.1.230.0030.00719.18
8.1.220.0040.00417.74
8.1.210.0060.00318.77
8.1.200.0060.00317.60
8.1.190.0040.00417.47
8.1.180.0050.00218.10
8.1.170.0000.00818.95
8.1.160.0040.00422.11
8.1.150.0070.00018.93
8.1.140.0040.00417.77
8.1.130.0000.00817.85
8.1.120.0040.00417.55
8.1.110.0070.00017.52
8.1.100.0000.00717.60
8.1.90.0070.00317.65
8.1.80.0000.00717.64
8.1.70.0030.00317.58
8.1.60.0040.00417.64
8.1.50.0040.00417.58
8.1.40.0030.00617.64
8.1.30.0060.00317.87
8.1.20.0000.00717.78
8.1.10.0070.00017.67
8.1.00.0000.00817.71
8.0.300.0040.00418.77
8.0.290.0070.00016.88
8.0.280.0040.00418.61
8.0.270.0070.00017.27
8.0.260.0030.00317.33
8.0.250.0000.00717.03
8.0.240.0000.00617.10
8.0.230.0000.00716.97
8.0.220.0000.00717.00
8.0.210.0040.00417.04
8.0.200.0030.00317.04
8.0.190.0030.00717.06
8.0.180.0040.00416.89
8.0.170.0040.00417.06
8.0.160.0030.00317.01
8.0.150.0040.00416.93
8.0.140.0030.00316.88
8.0.130.0000.00713.38
8.0.120.0040.00416.93
8.0.110.0000.00716.89
8.0.100.0040.00416.97
8.0.90.0000.00717.03
8.0.80.0050.01116.96
8.0.70.0030.00516.86
8.0.60.0050.00216.89
8.0.50.0070.00016.91
8.0.30.0120.00917.20
8.0.20.0130.00817.40
8.0.10.0040.00416.91
8.0.00.0100.00717.05
7.4.330.0000.00515.20
7.4.320.0000.00616.75
7.4.300.0030.00316.68
7.4.290.0000.00816.59
7.4.280.0040.00416.61
7.4.270.0000.00716.62
7.4.260.0030.00316.58
7.4.250.0040.00416.49
7.4.240.0000.00716.61
7.4.230.0030.00316.44
7.4.220.0150.00916.58
7.4.210.0100.01016.60
7.4.200.0070.00016.71
7.4.160.0080.00816.30
7.4.150.0120.00917.40
7.4.140.0120.00917.86
7.4.130.0100.00716.55
7.4.120.0110.00616.69
7.4.110.0130.00916.52
7.4.100.0070.01016.59
7.4.90.0110.00616.40
7.4.80.0120.00619.39
7.4.70.0110.00816.38
7.4.60.0090.00616.36
7.4.50.0000.00716.52
7.4.40.0140.00716.48
7.4.30.0080.01016.27
7.4.00.0100.00714.93
7.3.330.0000.00613.35
7.3.320.0000.00513.34
7.3.310.0000.00716.62
7.3.300.0030.00316.33
7.3.290.0040.01116.50
7.3.280.0040.01116.50
7.3.270.0180.00017.40
7.3.260.0160.00616.38
7.3.250.0090.00816.63
7.3.240.0110.00716.34
7.3.230.0090.00616.71
7.3.210.0130.00316.68
7.3.200.0130.00919.39
7.3.190.0110.00916.52
7.3.180.0090.00916.68
7.3.170.0100.00616.84
7.3.160.0100.00716.43
7.3.120.0070.01014.85
7.3.110.0160.00014.56
7.3.100.0030.00615.05
7.3.90.0000.01615.07
7.3.80.0030.00614.62
7.3.70.0030.00914.93
7.3.60.0070.00414.86
7.3.50.0070.00714.84
7.3.40.0030.00914.81
7.3.30.0030.00914.70
7.3.20.0060.00616.82
7.3.10.0080.00816.50
7.3.00.0060.00816.71
7.2.330.0100.00716.83
7.2.320.0140.00316.50
7.2.310.0120.00616.55
7.2.300.0130.00316.93
7.2.290.0070.01016.72
7.2.250.0040.01514.78
7.2.240.0130.00615.10
7.2.230.0150.00315.02
7.2.220.0030.01314.83
7.2.210.0030.00915.11
7.2.200.0050.00615.20
7.2.190.0120.00315.14
7.2.180.0090.00915.10
7.2.170.0100.00315.10
7.2.130.0040.01116.96
7.2.120.0060.01016.88
7.2.110.0070.01117.11
7.2.100.0050.00516.64
7.2.90.0090.01216.94
7.2.80.0100.00517.05
7.2.70.0160.00316.62
7.2.60.0100.01017.09
7.2.50.0160.00417.06
7.2.40.0190.00016.84
7.2.30.0120.01616.94
7.2.20.0100.01016.87
7.2.10.0140.00716.85
7.2.00.0100.00618.38
7.1.330.0090.00615.79
7.1.320.0060.00615.94
7.1.310.0070.01016.00
7.1.300.0070.00715.91
7.1.290.0030.00815.66
7.1.280.0090.00315.63
7.1.270.0140.00015.62
7.1.260.0000.01715.92
7.1.250.0060.01215.76
7.1.100.0000.01118.13
7.1.70.0070.00317.14
7.1.60.0080.01119.11
7.1.50.0060.01917.05
7.1.00.0100.07022.40
7.0.200.0000.01017.02
7.0.140.0030.07022.05
7.0.60.0230.07020.06
7.0.50.0100.05317.91
7.0.40.0000.09320.24
7.0.30.0270.07720.18
7.0.20.0200.05320.16
7.0.10.0100.08020.04
7.0.00.0000.04320.03
5.6.280.0030.07320.90
5.6.210.0070.08320.72
5.6.200.0030.08018.19
5.6.190.0030.09320.76
5.6.180.0170.04320.57
5.6.170.0270.08720.50
5.6.160.0070.08320.44
5.6.150.0000.07718.21
5.6.140.0130.04718.20
5.6.130.0000.07318.18
5.6.120.0030.05320.99
5.6.110.0030.04320.97
5.6.100.0070.08721.10
5.6.90.0100.08321.00
5.6.80.0100.07720.39
5.6.70.4230.03720.52
5.5.350.0170.08020.46
5.5.340.0100.08017.88
5.5.330.0200.06320.43
5.5.320.0200.08020.29
5.5.310.0300.04320.32
5.5.300.0130.07317.92
5.5.290.0030.07717.89
5.5.280.0100.08020.89
5.5.270.0030.04020.75
5.5.260.0130.06020.86
5.5.250.0100.05320.68
5.5.240.0300.06320.25
5.4.450.0030.06319.28
5.4.440.0200.06019.13
5.4.430.1230.05319.56
5.4.420.0670.00019.25
5.4.410.0700.00019.40
5.4.400.0670.00019.16
5.4.390.0630.00019.05
5.4.380.0630.00019.16
5.4.370.0700.00019.00
5.4.360.0630.00019.06
5.4.350.0630.00019.13
5.4.340.0050.03611.97
5.4.320.0020.03912.45
5.4.310.0070.03612.45
5.4.300.0080.03412.45
5.4.290.0070.03712.45
5.4.280.0090.03312.35
5.4.270.0060.03512.35
5.4.260.0120.03912.34
5.4.250.0070.04512.34
5.4.240.0090.04112.35
5.4.230.0050.04412.34
5.4.220.0070.03712.34
5.4.210.0050.03912.34
5.4.200.0080.03912.34
5.4.190.0060.03612.33
5.4.180.0070.04312.34
5.4.170.0050.03612.35
5.4.160.0050.03812.34
5.4.150.0050.03612.34
5.4.140.0050.03812.02
5.4.130.0060.03512.01
5.4.120.0100.03511.96
5.4.110.0060.04311.96
5.4.100.0090.03911.96
5.4.90.0070.03511.96
5.4.80.0070.03611.96
5.4.70.0030.04311.96
5.4.60.0040.03611.96
5.4.50.0100.03611.96
5.4.40.0070.03911.95
5.4.30.0060.03811.95
5.4.20.0100.03511.95
5.4.10.0070.03911.94
5.4.00.0080.04011.44
5.3.290.0060.04912.80
5.3.280.0070.05212.71
5.3.270.0100.04412.73
5.3.260.0060.04112.72
5.3.250.0110.03712.72
5.3.240.0100.04012.72
5.3.230.0070.04112.71
5.3.220.0050.04112.68
5.3.210.0130.04012.68
5.3.200.0070.04212.68
5.3.190.0040.04312.68
5.3.180.0070.03512.68
5.3.170.0040.03712.67
5.3.160.0050.03612.67
5.3.150.0060.03612.67
5.3.140.0090.03312.66
5.3.130.0070.04412.66
5.3.120.0040.04112.66
5.3.110.0090.03612.66
5.3.100.0060.03612.12
5.3.90.0080.03412.08
5.3.80.0070.03912.07
5.3.70.0090.04012.07
5.3.60.0090.05012.07
5.3.50.0080.04112.00
5.3.40.0080.04112.00
5.3.30.0050.03811.95
5.3.20.0080.03511.72
5.3.10.0120.03211.69
5.3.00.0060.04111.68
5.2.170.0020.0369.18
5.2.160.0050.0419.18
5.2.150.0100.0429.18
5.2.140.0070.0449.18
5.2.130.0060.0379.13
5.2.120.0020.0329.13
5.2.110.0080.0279.14
5.2.100.0070.0309.13
5.2.90.0060.0299.14
5.2.80.0040.0349.13
5.2.70.0040.0329.13
5.2.60.0040.0309.09
5.2.50.0030.0329.06
5.2.40.0040.0309.04
5.2.30.0060.0289.00
5.2.20.0040.0299.00
5.2.10.0070.0268.92
5.2.00.0080.0318.78
5.1.60.0030.0258.06
5.1.50.0030.0278.05
5.1.40.0030.0258.04
5.1.30.0020.0288.39
5.1.20.0050.0288.41
5.1.10.0050.0268.13
5.1.00.0050.0268.14
5.0.50.0040.0216.61
5.0.40.0030.0236.48
5.0.30.0050.0326.29
5.0.20.0040.0216.26
5.0.10.0020.0276.23
5.0.00.0030.0336.23
4.4.90.0060.0154.78
4.4.80.0030.0154.75
4.4.70.0050.0144.75
4.4.60.0050.0154.75
4.4.50.0020.0164.77
4.4.40.0030.0364.71
4.4.30.0010.0204.76
4.4.20.0050.0144.85
4.4.10.0040.0164.85
4.4.00.0040.0244.75
4.3.110.0040.0184.67
4.3.100.0020.0174.67
4.3.90.0020.0154.64
4.3.80.0030.0244.59
4.3.70.0070.0164.63
4.3.60.0040.0194.63
4.3.50.0020.0164.63
4.3.40.0010.0264.54
4.3.30.0040.0143.28
4.3.20.0020.0163.26
4.3.10.0020.0163.21
4.3.00.0130.0236.95

preferences:
38.55 ms | 401 KiB | 5 Q