3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 'ČeCHLOvs Ě-Š-Č-Ř-Ž-Ý-Á-Í-É-Ú-Ů'; echo $s; echo "\n\n"; echo strtolower($s); echo "\n\n"; echo mb_strtolower($s, 'UTF-8');

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)
8.3.60.0110.01118.30
8.3.50.0110.00621.14
8.3.40.0070.00718.74
8.3.30.0100.00320.25
8.3.20.0040.00420.21
8.3.10.0090.00021.96
8.3.00.0000.00822.52
8.2.180.0110.00416.50
8.2.170.0170.00322.96
8.2.160.0030.01222.30
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0110.00326.16
8.2.120.0000.00820.69
8.2.110.0030.00622.12
8.2.100.0080.00417.88
8.2.90.0000.00918.98
8.2.80.0000.00719.20
8.2.70.0040.00417.63
8.2.60.0050.00518.05
8.2.50.0040.00718.07
8.2.40.0040.00418.16
8.2.30.0000.00719.43
8.2.20.0050.00217.65
8.2.10.0050.00317.73
8.2.00.0060.00317.73
8.1.280.0090.00625.92
8.1.270.0090.00323.99
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0040.00423.83
8.1.230.0070.00419.04
8.1.220.0000.00817.79
8.1.210.0030.00618.77
8.1.200.0000.00917.13
8.1.190.0040.00417.41
8.1.180.0030.00619.01
8.1.170.0050.00318.62
8.1.160.0040.00420.77
8.1.150.0040.00718.60
8.1.140.0060.00317.38
8.1.130.0000.00717.88
8.1.120.0040.00417.35
8.1.110.0040.00417.49
8.1.100.0000.00717.44
8.1.90.0060.00317.33
8.1.80.0040.00417.50
8.1.70.0000.00817.45
8.1.60.0030.00517.46
8.1.50.0040.00417.50
8.1.40.0030.00617.40
8.1.30.0080.00017.58
8.1.20.0040.00417.65
8.1.10.0030.00617.58
8.1.00.0040.00417.52
8.0.300.0070.00018.77
8.0.290.0080.00017.28
8.0.280.0070.00018.50
8.0.270.0040.00417.30
8.0.260.0050.00316.86
8.0.250.0030.00316.93
8.0.240.0040.00416.96
8.0.230.0000.00716.90
8.0.220.0000.00716.86
8.0.210.0020.00516.85
8.0.200.0070.00016.83
8.0.190.0070.00016.81
8.0.180.0040.00416.85
8.0.170.0000.00716.79
8.0.160.0040.00416.96
8.0.150.0070.00016.75
8.0.140.0050.00216.84
8.0.130.0030.00313.39
8.0.120.0040.00416.72
8.0.110.0000.00816.76
8.0.100.0040.00416.94
8.0.90.0000.00816.94
8.0.80.0030.01516.76
8.0.70.0050.00216.88
8.0.60.0000.00716.88
8.0.50.0000.00716.68
8.0.30.0110.00817.05
8.0.20.0100.00817.40
8.0.10.0000.00816.98
8.0.00.0100.01316.79
7.4.330.0000.00715.00
7.4.320.0000.00616.54
7.4.300.0030.00316.59
7.4.290.0030.00316.44
7.4.280.0000.00716.41
7.4.270.0000.00716.42
7.4.260.0000.00513.26
7.4.250.0080.00016.47
7.4.240.0030.00416.50
7.4.230.0000.00716.48
7.4.220.0130.00616.62
7.4.210.0060.01016.48
7.4.200.0070.00016.33
7.4.190.0040.00416.72
7.4.160.0130.00316.38
7.4.150.0030.01417.40
7.4.140.0110.00617.86
7.4.130.0060.01016.48
7.4.120.0100.00616.38
7.4.110.0130.00416.49
7.4.100.0090.00916.58
7.4.90.0110.00716.54
7.4.80.0100.01319.39
7.4.70.0110.00716.54
7.4.60.0070.01116.39
7.4.50.0000.00816.21
7.4.40.0090.00622.77
7.4.30.0100.00716.54
7.4.10.0000.01816.38
7.4.00.0080.01015.83
7.3.330.0050.00013.05
7.3.320.0000.00713.22
7.3.310.0030.00316.41
7.3.300.0030.00316.18
7.3.290.0070.00716.29
7.3.280.0070.00916.29
7.3.270.0110.00717.40
7.3.260.0050.01216.55
7.3.250.0090.00816.41
7.3.240.0100.01016.37
7.3.230.0080.00816.56
7.3.210.0100.00616.27
7.3.200.0110.01119.39
7.3.190.0090.01316.47
7.3.180.0090.00616.54
7.3.170.0060.00916.52
7.3.160.0060.00916.27
7.3.130.0090.01216.50
7.3.120.0060.01115.67
7.3.110.0030.01216.51
7.3.100.0090.00616.29
7.3.90.0030.01416.18
7.3.80.0040.01216.08
7.3.70.0070.01116.39
7.3.60.0070.00716.07
7.3.50.0070.00716.28
7.3.40.0080.00516.21
7.3.30.0040.01116.35
7.3.20.0110.00418.25
7.3.10.0060.01018.18
7.3.00.0000.01618.14
7.2.330.0120.00616.55
7.2.320.0060.01316.47
7.2.310.0090.00916.38
7.2.300.0080.00816.67
7.2.290.0060.01016.61
7.2.260.0060.01016.18
7.2.250.0140.00716.27
7.2.240.0100.00616.63
7.2.230.0070.01016.36
7.2.220.0030.00716.55
7.2.210.0080.01116.33
7.2.200.0030.01016.30
7.2.190.0060.01316.26
7.2.180.0040.01116.51
7.2.170.0040.01116.36
7.2.160.0030.01316.57
7.2.150.0070.00718.29
7.2.140.0030.01318.38
7.2.130.0070.01118.30
7.2.120.0090.00618.37
7.2.110.0070.00718.25
7.2.100.0090.00618.35
7.2.90.0030.01018.43
7.2.80.0110.00418.18
7.2.70.0000.01618.56
7.2.60.0040.01317.50
7.2.50.0040.01218.24
7.2.40.0040.01118.29
7.2.30.0000.01618.27
7.2.20.0140.00018.08
7.2.10.0030.00718.46
7.2.00.0050.01818.54
7.1.330.0070.00717.38
7.1.320.0060.00917.50
7.1.310.0030.01017.26
7.1.300.0070.00717.38
7.1.290.0030.01017.35
7.1.280.0100.00617.24
7.1.270.0060.00917.33
7.1.260.0060.00617.17
7.1.250.0040.01417.23
7.1.240.0040.00417.09
7.1.230.0090.00617.29
7.1.220.0060.00917.40
7.1.210.0060.00617.28
7.1.200.0080.00516.51
7.1.190.0100.00617.26
7.1.180.0070.00717.36
7.1.170.0000.01317.32
7.1.160.0100.00617.41
7.1.150.0000.01017.26
7.1.140.0070.00717.34
7.1.130.0090.00317.20
7.1.120.0110.00717.34
7.1.110.0140.00017.48
7.1.100.0020.01117.76
7.1.90.0040.00817.24
7.1.80.0060.00917.18
7.1.70.0060.00617.20
7.1.60.0060.01318.32
7.1.50.0090.00817.00
7.1.40.0000.01517.55
7.1.30.0030.00617.39
7.1.20.0000.00917.18
7.1.10.0130.00317.32
7.1.00.0050.02919.80
7.0.330.0040.01116.81
7.0.320.0140.00017.10
7.0.310.0120.00617.00
7.0.300.0130.00616.85
7.0.290.0030.01416.91
7.0.280.0070.00416.82
7.0.270.0070.01016.84
7.0.260.0070.01017.10
7.0.250.0080.00316.95
7.0.240.0030.01317.15
7.0.230.0000.01317.13
7.0.220.0000.01116.85
7.0.210.0050.00517.14
7.0.200.0050.00416.76
7.0.190.0110.00317.14
7.0.180.0080.00317.09
7.0.170.0080.00317.13
7.0.160.0030.00717.04
7.0.150.0090.00616.92
7.0.140.0050.03919.59
7.0.130.0070.00717.02
7.0.120.0110.00417.05
7.0.110.0010.02118.54
7.0.100.0080.02518.48
7.0.90.0050.02318.39
7.0.80.0000.02818.40
7.0.70.0080.03318.42
7.0.60.0030.02718.40
7.0.50.0130.01718.51
7.0.40.0060.04017.46
7.0.30.0050.02417.46
7.0.20.0070.02017.26
7.0.10.0130.02317.36
7.0.00.0030.02517.30
5.6.400.0090.00615.70
5.6.390.0090.00315.90
5.6.380.0130.00315.87
5.6.370.0090.00615.78
5.6.360.0100.01015.49
5.6.350.0060.00615.64
5.6.340.0080.00415.89
5.6.330.0120.00315.70
5.6.320.0060.00916.04
5.6.310.0080.00615.55
5.6.300.0150.00015.71
5.6.290.0070.00715.64
5.6.280.0080.03818.40
5.6.270.0030.00915.94
5.6.260.0050.02518.24
5.6.250.0050.02018.14
5.6.240.0090.03018.22
5.6.230.0030.02718.17
5.6.220.0030.02218.19
5.6.210.0070.02318.19
5.6.200.0060.03318.19
5.6.190.0000.04318.16
5.6.180.0050.02318.22
5.6.170.0080.02018.13
5.6.160.0030.02518.28
5.6.150.0050.02618.22
5.6.140.0070.02318.30
5.6.130.0010.02718.31
5.6.120.0070.02618.18
5.6.110.0050.02318.15
5.6.100.0030.03018.22
5.6.90.0100.02018.05
5.6.80.0020.02617.81
5.6.70.0070.02217.90
5.6.60.0000.02917.87
5.6.50.0080.02517.75
5.6.40.0080.02017.97
5.6.30.0080.04717.83
5.6.20.0080.02117.94
5.6.10.0030.02617.85
5.6.00.0030.02717.84
5.5.380.0050.02316.59
5.5.370.0120.02416.51
5.5.360.0030.02216.66
5.5.350.0070.02316.72
5.5.340.0060.02716.91
5.5.330.0070.02016.89
5.5.320.0070.03216.86
5.5.310.0040.02316.88
5.5.300.0080.02116.92
5.5.290.0050.03616.94
5.5.280.0030.04316.89
5.5.270.0030.02716.73
5.5.260.0100.02316.84
5.5.250.0050.02716.65
5.5.240.0070.02216.49
5.5.230.0070.01916.49
5.5.220.0020.02716.60
5.5.210.0050.02216.58
5.5.200.0040.02216.40
5.5.190.0050.02616.44
5.5.180.0070.04116.45
5.5.170.0040.00815.62
5.5.160.0030.03316.66
5.5.150.0020.03116.66
5.5.140.0060.03816.62
5.5.130.0060.03016.32
5.5.120.0080.03216.50
5.5.110.0050.02216.59
5.5.100.0060.03016.30
5.5.90.0050.01816.40
5.5.80.0040.02416.55
5.5.70.0060.02516.46
5.5.60.0090.03616.49
5.5.50.0120.01816.55
5.5.40.0020.02416.52
5.5.30.0070.02916.42
5.5.20.0020.02416.57
5.5.10.0030.02416.56
5.5.00.0100.02516.35
5.4.450.0020.02516.08
5.4.440.0060.01915.91
5.4.430.0080.02015.88
5.4.420.0020.02816.13
5.4.410.0050.02515.98
5.4.400.0020.02715.67
5.4.390.0000.02715.71
5.4.380.0030.02815.69
5.4.370.0040.02415.80
5.4.360.0050.01815.73
5.4.350.0060.03515.77
5.4.340.0030.02515.76
5.4.330.0040.01112.48
5.4.320.0090.01715.89
5.4.310.0020.02315.66
5.4.300.0030.02515.76
5.4.290.0050.02815.78
5.4.280.0070.01715.75
5.4.270.0070.02215.78
5.4.260.0050.02115.67
5.4.250.0020.02315.64
5.4.240.0050.02015.80
5.4.230.0030.02315.81
5.4.220.0070.02315.79
5.4.210.0070.02315.82
5.4.200.0090.03515.72
5.4.190.0010.03115.82
5.4.180.0060.02815.72
5.4.170.0020.03515.92
5.4.160.0040.01915.84
5.4.150.0030.02015.87
5.4.140.0070.01814.52
5.4.130.0050.01714.32
5.4.120.0020.02114.57
5.4.110.0030.02714.38
5.4.100.0020.02414.31
5.4.90.0030.02414.40
5.4.80.0020.02014.44
5.4.70.0050.02014.47
5.4.60.0100.01514.40
5.4.50.0000.01814.35
5.4.40.0060.01914.48
5.4.30.0020.02214.43
5.4.20.0040.03514.49
5.4.10.0060.02114.56
5.4.00.0050.01814.15
5.3.290.0080.02313.85
5.3.280.0030.02613.67
5.3.270.0060.02113.74
5.3.260.0140.01313.64
5.3.250.0100.03313.84
5.3.240.0050.01613.68
5.3.230.0030.02213.85
5.3.220.0000.03113.66
5.3.210.0100.02513.55
5.3.200.0050.01913.59
5.3.190.0000.02413.65
5.3.180.0050.02013.69
5.3.170.0070.01713.74
5.3.160.0070.02213.76
5.3.150.0030.02413.81
5.3.140.0050.01813.78
5.3.130.0050.02113.59
5.3.120.0030.02613.68
5.3.110.0020.02313.63
5.3.100.0050.02113.41
5.3.90.0030.01913.53
5.3.80.0020.03013.46
5.3.70.0050.02213.38
5.3.60.0070.02513.38
5.3.50.0000.02713.28
5.3.40.0030.02313.42
5.3.30.0050.02213.51
5.3.20.0090.02113.28
5.3.10.0050.01913.19
5.3.00.0070.02213.33
5.2.170.0070.02011.93
5.2.160.0070.02711.93
5.2.150.0070.02711.93
5.2.140.0000.03011.93
5.2.130.0030.02311.93
5.2.120.0000.03011.93
5.2.110.0070.02311.93
5.2.100.0030.02311.93
5.2.90.0030.02711.93
5.2.80.0000.03011.93
5.2.70.0070.02311.93
5.2.60.0070.02711.93
5.2.50.0000.02711.93
5.2.40.0000.03011.93
5.2.30.0070.03011.93
5.2.20.0030.03011.93
5.2.10.0070.02311.93
5.2.00.0000.04711.93
5.1.60.0070.02011.93
5.1.50.0000.02011.93
5.1.40.0030.02011.93
5.1.30.0030.02011.93
5.1.20.0030.03311.93
5.1.10.0030.02311.93
5.1.00.0000.03311.93
5.0.50.0030.02311.93
5.0.40.0000.02011.93
5.0.30.0000.02711.93
5.0.20.0070.01711.93
5.0.10.0000.02011.93
5.0.00.0000.03011.93
4.4.90.0000.02011.93
4.4.80.0000.01711.93
4.4.70.0070.02311.93
4.4.60.0030.02711.93
4.4.50.0000.01311.93
4.4.40.0030.02311.93
4.4.30.0000.02311.93
4.4.20.0030.01011.93
4.4.10.0030.01311.93
4.4.00.0000.02711.93
4.3.110.0000.01311.93
4.3.100.0000.01311.93
4.3.90.0000.01311.93
4.3.80.0000.04711.93
4.3.70.0030.01711.93
4.3.60.0030.01011.93
4.3.50.0030.02011.93
4.3.40.0030.02011.93
4.3.30.0030.01011.93
4.3.20.0000.01711.93
4.3.10.0030.01011.93
4.3.00.0000.01311.93

preferences:
48.16 ms | 401 KiB | 5 Q