3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(mb_internal_encoding()); print mb_strtolower("Ö");

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)
8.3.60.0040.01118.31
8.3.50.0130.01022.79
8.3.40.0070.01118.71
8.3.30.0110.01118.92
8.3.20.0040.00420.21
8.3.10.0000.00821.64
8.3.00.0040.00417.91
8.2.180.0120.00316.75
8.2.170.0140.00722.96
8.2.160.0090.00620.35
8.2.150.0040.00424.18
8.2.140.0070.00024.66
8.2.130.0000.00826.16
8.2.120.0070.00020.95
8.2.110.0030.00722.24
8.2.100.0060.00617.78
8.2.90.0000.00819.06
8.2.80.0000.00817.97
8.2.70.0030.00517.50
8.2.60.0030.00517.80
8.2.50.0030.00918.07
8.2.40.0000.00818.03
8.2.30.0000.00718.01
8.2.20.0040.00417.48
8.2.10.0000.00717.97
8.2.00.0080.00017.48
8.1.280.0130.00725.92
8.1.270.0000.00823.79
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0060.00323.77
8.1.230.0090.00319.06
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0090.00017.00
8.1.190.0000.00817.00
8.1.180.0030.00618.10
8.1.170.0050.00318.57
8.1.160.0000.00722.05
8.1.150.0000.00718.78
8.1.140.0080.00017.34
8.1.130.0050.00217.69
8.1.120.0070.00017.34
8.1.110.0040.00417.43
8.1.100.0000.00717.43
8.1.90.0070.00017.38
8.1.80.0030.00417.42
8.1.70.0030.00317.36
8.1.60.0050.00317.50
8.1.50.0060.00317.40
8.1.40.0000.00717.37
8.1.30.0080.00017.48
8.1.20.0040.00417.62
8.1.10.0050.00217.38
8.1.00.0040.00417.34
8.0.300.0080.00018.77
8.0.290.0000.00716.63
8.0.280.0070.00018.40
8.0.270.0030.00317.16
8.0.260.0030.00317.25
8.0.250.0000.00716.95
8.0.240.0020.00516.88
8.0.230.0080.00016.88
8.0.220.0030.00316.75
8.0.210.0090.00016.74
8.0.200.0000.00716.81
8.0.190.0000.00816.88
8.0.180.0000.00716.83
8.0.170.0000.00716.82
8.0.160.0070.00016.81
8.0.150.0030.00416.66
8.0.140.0000.00716.69
8.0.130.0030.00313.27
8.0.120.0080.00016.84
8.0.110.0040.00416.72
8.0.100.0040.00416.59
8.0.90.0040.00416.86
8.0.80.0130.00316.74
8.0.70.0070.00016.69
8.0.60.0000.00816.66
8.0.50.0000.00816.64
8.0.30.0100.00916.83
8.0.20.0120.00617.40
8.0.10.0050.00316.86
8.0.00.0080.01016.82
7.4.330.0050.00015.07
7.4.320.0030.00316.51
7.4.300.0060.00016.51
7.4.290.0060.00016.56
7.4.280.0030.00616.52
7.4.270.0000.00716.49
7.4.260.0050.00216.55
7.4.250.0000.00716.30
7.4.240.0040.00316.46
7.4.230.0030.00316.36
7.4.220.0130.00316.45
7.4.210.0110.00416.52
7.4.200.0030.00316.26
7.4.160.0070.00716.47
7.4.150.0090.01217.40
7.4.140.0090.00917.86
7.4.130.0110.00716.38
7.4.120.0140.00516.48
7.4.110.0060.01016.49
7.4.100.0130.00316.48
7.4.90.0120.00616.31
7.4.80.0090.00919.39
7.4.70.0090.00616.36
7.4.60.0070.01016.51
7.4.50.0040.00416.27
7.4.40.0100.01316.29
7.4.30.0100.00616.19
7.4.00.0030.00915.08
7.3.330.0030.00313.19
7.3.320.0000.00513.16
7.3.310.0030.00316.12
7.3.300.0000.00716.24
7.3.290.0070.00716.21
7.3.280.0070.01116.23
7.3.270.0100.01417.40
7.3.260.0150.00716.29
7.3.250.0030.01316.34
7.3.240.0190.00316.23
7.3.230.0160.00716.41
7.3.210.0130.00716.32
7.3.200.0130.01019.39
7.3.190.0120.01016.28
7.3.180.0100.00716.21
7.3.170.0090.00616.44
7.3.160.0110.00716.53
7.3.120.0060.00614.60
7.2.330.0120.01216.64
7.2.320.0120.00616.61
7.2.310.0100.00616.50
7.2.300.0160.00016.26
7.2.290.0110.00516.52
7.2.00.0030.00719.23
7.1.200.0340.00315.31
7.1.100.0090.00317.68
7.1.70.0030.00316.88
7.1.60.0100.01319.40
7.1.50.0060.01616.71
7.1.00.0000.08022.40
7.0.200.0100.00316.56
7.0.140.0100.06722.00
7.0.60.0270.04719.87
7.0.50.0070.04017.80
7.0.40.0200.07720.23
7.0.30.0300.08320.16
7.0.20.0170.04720.17
7.0.10.0100.08020.20
7.0.00.0130.05320.13
5.6.280.0100.07021.11
5.6.210.0070.06020.60
5.6.200.0100.08318.21
5.6.190.0000.04720.49
5.6.180.0230.04320.77
5.6.170.0370.07720.38
5.6.160.0100.08020.33
5.6.150.0030.07318.09
5.6.140.0070.08318.18
5.6.130.0070.07718.21
5.6.120.0170.07320.89
5.6.110.0100.08720.99
5.6.100.0170.07320.97
5.6.90.0030.09320.94
5.6.80.0070.04720.36
5.5.350.0300.05720.46
5.5.340.0030.06317.99
5.5.330.0070.03720.57
5.5.320.0430.03320.29
5.5.310.0270.07320.29
5.5.300.0070.07717.93
5.5.290.0100.08017.94
5.5.280.0100.04320.86
5.5.270.0100.07720.86
5.5.260.0170.07720.72
5.5.250.0000.08020.65
5.5.240.0070.07320.26
5.4.450.0000.04719.48
5.4.440.0070.06719.50
5.4.430.1000.06319.36
5.4.420.3830.04019.33
5.4.410.3730.03319.43
5.4.400.3770.04018.97
5.4.390.4000.03718.88
5.4.380.3800.04019.22
5.4.370.4070.03319.14
5.4.360.4230.03319.11
5.4.350.2530.03719.06
5.4.340.3700.03018.96
5.4.320.3900.03719.04
5.4.310.3700.04019.15
5.4.300.3630.04019.08
5.4.290.3970.04019.14
5.4.280.3700.03719.17
5.4.270.4530.03718.96
5.4.260.3700.03318.96
5.4.250.3470.02718.93
5.4.240.3630.03319.14
5.4.230.3770.04318.86
5.4.220.1700.03718.91
5.4.210.1530.03319.20
5.4.200.1700.03718.88
5.4.190.2000.03319.13
5.4.180.3530.03719.13
5.4.170.4530.04319.16
5.4.160.4400.03719.06
5.4.150.3730.03719.15
5.4.140.3970.04716.22
5.4.130.3970.04016.31
5.4.120.3600.04016.33
5.4.110.4000.03316.35
5.4.100.3930.03316.32
5.4.90.3570.03716.23
5.4.80.4100.03016.36
5.4.70.4270.03716.48
5.4.60.2970.04016.13
5.4.50.4070.03316.14
5.4.40.4100.03716.30
5.4.30.3570.04016.29
5.4.20.4500.03316.43
5.4.10.3470.04016.29
5.4.00.3800.03715.69
5.3.290.4000.04314.48
5.3.280.2900.04014.38
5.3.270.4070.04314.56
5.3.260.3430.03014.69
5.3.250.3630.03314.54
5.3.240.3830.04014.52
5.3.230.3630.03714.53
5.3.220.4300.03314.47
5.3.210.3900.03314.50
5.3.200.4430.04314.49
5.3.190.3900.03014.49
5.3.180.4000.03314.48
5.3.170.4070.04014.49
5.3.160.3870.03314.46
5.3.150.4000.04014.52
5.3.140.3900.04314.48
5.3.130.4170.03314.52
5.3.120.4030.03714.36
5.3.110.4670.04314.47
5.3.100.3630.03013.97
5.3.90.4070.04013.95
5.3.80.3900.03313.95
5.3.70.3800.03013.96
5.3.60.4800.03713.83
5.3.50.5000.03713.87
5.3.40.1900.03013.87
5.3.30.0030.03313.83
5.3.20.2870.04713.61
5.3.10.4570.03313.63
5.3.00.4500.03313.56
5.2.170.3470.03311.11
5.2.160.3070.02311.04
5.2.150.0030.02711.13
5.2.140.0030.03011.13
5.2.130.3600.02710.98
5.2.120.3570.02711.03
5.2.110.3500.03011.25
5.2.100.3670.03310.92
5.2.90.3570.03310.99
5.2.80.3530.02710.97
5.2.70.3530.02711.08
5.2.60.4000.03310.95
5.2.50.3530.02010.94
5.2.40.2730.03310.89
5.2.30.2870.03011.04
5.2.20.3000.02710.88
5.2.10.3270.02711.01
5.2.00.3170.03010.79
5.1.60.3030.0239.96
5.1.50.0070.04710.03
5.1.40.0030.05310.03
5.1.30.0130.05010.34
5.1.20.0070.03310.33
5.1.10.2530.0239.96
5.1.00.3230.0279.90
5.0.50.1570.0208.60
5.0.40.1770.0208.45
5.0.30.1630.0308.19
5.0.20.1630.0208.17
5.0.10.1900.0178.07
5.0.00.1770.0308.05
4.4.90.1800.0176.48
4.4.80.1670.0136.48
4.4.70.1470.0136.48
4.4.60.1630.0136.48
4.4.50.1630.0176.48
4.4.40.1530.0236.48
4.4.30.0030.0136.48
4.4.20.0000.0376.48
4.4.10.1870.0136.48
4.4.00.1670.0276.48
4.3.110.1600.0176.48
4.3.100.1830.0136.48
4.3.90.1870.0136.48
4.3.80.1430.0276.48
4.3.70.1470.0176.48
4.3.60.2200.0106.48
4.3.50.1930.0136.48
4.3.40.1730.0276.48
4.3.30.0870.0206.48
4.3.20.1000.0236.48
4.3.10.1030.0206.48
4.3.00.1100.0236.48

preferences:
58.16 ms | 401 KiB | 5 Q