3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = "три"; $s_cp = mb_detect_encoding($s, "windows-1251"); echo $s, ' ', strlen($s); echo "\n"; echo $s_cp, ' ', strlen($s_cp);

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)
8.3.60.0110.00416.50
8.3.50.0220.00421.14
8.3.40.0100.01018.72
8.3.30.0070.00718.87
8.3.20.0050.00220.04
8.3.10.0080.00021.73
8.3.00.0040.00419.67
8.2.180.0120.00316.63
8.2.170.0110.00322.96
8.2.160.0140.00020.50
8.2.150.0030.00524.18
8.2.140.0000.01024.66
8.2.130.0000.01026.16
8.2.120.0060.00320.73
8.2.110.0060.00320.46
8.2.100.0120.00017.78
8.2.90.0040.00419.33
8.2.80.0030.00619.46
8.2.70.0060.00317.88
8.2.60.0050.00318.29
8.2.50.0040.00418.07
8.2.40.0070.00018.28
8.2.30.0040.00418.11
8.2.20.0050.00217.71
8.2.10.0070.00018.30
8.2.00.0040.00417.91
8.1.280.0080.00825.92
8.1.270.0030.00623.89
8.1.260.0060.00326.35
8.1.250.0040.00428.09
8.1.240.0030.00623.89
8.1.230.0080.00322.87
8.1.220.0040.00417.80
8.1.210.0000.00818.77
8.1.200.0030.00617.48
8.1.190.0000.00817.76
8.1.180.0080.00018.89
8.1.170.0000.00818.50
8.1.160.0000.00722.30
8.1.150.0000.00818.99
8.1.140.0000.00717.57
8.1.130.0000.00717.99
8.1.120.0050.00217.58
8.1.110.0060.00317.54
8.1.100.0000.00717.64
8.1.90.0040.00317.57
8.1.80.0000.00717.46
8.1.70.0000.00817.54
8.1.60.0050.00317.68
8.1.50.0030.00517.60
8.1.40.0070.00317.47
8.1.30.0060.00317.71
8.1.20.0040.00417.75
8.1.10.0000.00817.70
8.1.00.0040.00417.59
8.0.300.0050.00218.77
8.0.290.0070.00017.40
8.0.280.0030.00318.49
8.0.270.0000.00717.37
8.0.260.0060.00017.36
8.0.250.0000.00617.06
8.0.240.0000.00717.08
8.0.230.0030.00316.98
8.0.220.0000.00616.91
8.0.210.0000.00716.83
8.0.200.0000.00717.04
8.0.190.0000.00716.98
8.0.180.0060.00316.90
8.0.170.0070.00016.96
8.0.160.0000.00716.80
8.0.150.0000.00716.79
8.0.140.0000.00716.79
8.0.130.0000.00613.42
8.0.120.0040.00416.90
8.0.110.0040.00416.76
8.0.100.0000.00716.97
8.0.90.0000.00717.00
8.0.80.0080.00816.98
8.0.70.0040.00417.00
8.0.60.0000.00816.93
8.0.50.0000.00716.93
8.0.30.0130.00617.14
8.0.20.0130.00617.40
8.0.10.0080.00016.88
8.0.00.0110.00716.88
7.4.330.0020.00215.20
7.4.320.0050.00216.62
7.4.300.0000.00616.47
7.4.290.0000.00716.50
7.4.280.0030.00616.47
7.4.270.0000.00616.50
7.4.260.0040.00716.55
7.4.250.0030.00516.37
7.4.240.0010.00616.57
7.4.230.0020.00516.66
7.4.220.0070.01816.59
7.4.210.0040.01116.52
7.4.200.0040.00416.51
7.4.160.0080.00816.40
7.4.150.0150.00317.40
7.4.140.0130.00517.86
7.4.130.0110.01016.66
7.4.120.0080.01316.64
7.4.110.0180.00616.67
7.4.100.0090.00916.43
7.4.90.0160.00016.47
7.4.80.0110.00619.39
7.4.70.0060.01016.64
7.4.60.0080.00816.52
7.4.50.0070.00016.24
7.4.40.0210.00016.47
7.4.30.0110.00716.55
7.4.00.0030.01315.00
7.3.330.0030.00313.19
7.3.320.0070.00013.23
7.3.310.0040.00416.28
7.3.300.0030.00316.17
7.3.290.0070.00716.28
7.3.280.0090.00816.29
7.3.270.0110.01217.40
7.3.260.0030.01416.30
7.3.250.0060.01116.47
7.3.240.0130.00316.49
7.3.230.0120.00616.57
7.3.210.0040.01216.45
7.3.200.0070.01119.39
7.3.190.0190.00216.60
7.3.180.0100.00716.46
7.3.170.0130.00316.45
7.3.160.0230.00016.34
7.2.330.0090.00916.82
7.2.320.0150.00316.79
7.2.310.0040.01416.58
7.2.300.0030.01416.60
7.2.290.0110.01216.48
7.2.60.0030.01416.97
7.2.00.0000.00919.58
7.1.200.0040.01215.91
7.1.100.0080.00318.32
7.1.70.0000.00817.27
7.1.60.0060.01919.34
7.1.50.0150.00617.06
7.1.00.0070.07322.35
7.0.200.0030.00616.75
7.0.140.0030.06721.98
7.0.60.0130.07320.02
7.0.50.0100.04717.80
7.0.40.0030.04720.24
7.0.30.0270.05320.09
7.0.20.0270.08020.30
7.0.10.0170.08020.00
7.0.00.0100.07020.04
5.6.280.0030.07021.03
5.6.210.0170.07320.50
5.6.200.0130.07718.21
5.6.190.0070.08020.57
5.6.180.0230.05020.39
5.6.170.0230.04320.41
5.6.160.0130.06720.52
5.6.150.0030.04018.08
5.6.140.0100.06018.21
5.6.130.0000.05718.13
5.6.120.0030.07021.03
5.6.110.0070.08721.11
5.6.100.0000.04321.00
5.6.90.0070.04721.09
5.6.80.0070.08020.36
5.6.70.4730.04020.27
5.5.350.0070.08320.43
5.5.340.0000.06017.92
5.5.330.0000.04320.06
5.5.320.0270.05720.27
5.5.310.0270.07720.41
5.5.300.0030.04717.98
5.5.290.0000.04317.91
5.5.280.0030.06320.79
5.5.270.0070.06720.63
5.5.260.0200.08020.86
5.5.250.0030.04020.69
5.5.240.0230.03720.28
5.4.450.0630.05019.45
5.4.440.0370.06019.50
5.4.430.0130.05019.31
5.4.420.0200.04719.45
5.4.410.0170.05019.57
5.4.400.0130.04719.13
5.4.390.0330.05718.98
5.4.380.0130.06018.74
5.4.370.0100.06018.69
5.4.360.0270.06018.49
5.4.350.0000.04713.70
5.4.340.0030.04013.72
5.4.320.0030.04014.20
5.4.310.0070.04014.14
5.4.300.0030.04714.13
5.4.290.0070.04714.13
5.4.280.0070.04314.04
5.4.270.0000.05014.05
5.4.260.0030.04014.06
5.4.250.0000.04314.11
5.4.240.0070.03714.02
5.4.230.0100.03714.08
5.4.220.0130.03014.08
5.4.210.0030.04014.07
5.4.200.0130.03714.07
5.4.190.0100.03714.20
5.4.180.0030.04314.23
5.4.170.0130.03314.05
5.4.160.0130.03714.18
5.4.150.0100.03314.07
5.4.140.0030.04713.79
5.4.130.0070.03713.87
5.4.120.0070.04013.71
5.4.110.0070.04313.82
5.4.100.0070.03713.82
5.4.90.0000.04313.67
5.4.80.0070.03713.65
5.4.70.0000.04013.66
5.4.60.0130.02713.64
5.4.50.0100.03313.66
5.4.40.0100.03313.62
5.4.30.0030.04013.70
5.4.20.0000.04313.62
5.4.10.0070.03713.66
5.4.00.0030.04013.27
5.3.290.0030.04314.58
5.3.280.0130.03014.50
5.3.270.0030.04314.50
5.3.260.0100.03714.60
5.3.250.0030.04014.64
5.3.240.0100.03314.54
5.3.230.0030.04014.51
5.3.220.0000.04314.48
5.3.210.0170.03014.50
5.3.200.0030.04014.53
5.3.190.0200.03314.57
5.3.180.0030.04314.58
5.3.170.0070.03714.56
5.3.160.0070.04014.45
5.3.150.0030.05314.41
5.3.140.0030.05014.58
5.3.130.0070.04314.39
5.3.120.0070.04714.43
5.3.110.0100.03714.57
5.3.100.0030.04013.92
5.3.90.0070.03713.94
5.3.80.0070.03714.05
5.3.70.0030.04013.93
5.3.60.0070.04014.01
5.3.50.0030.04713.89
5.3.40.0100.03713.98
5.3.30.0000.04313.92
5.3.20.0130.03013.72
5.3.10.0000.04313.66
5.3.00.0130.03013.66
5.2.170.0000.03711.03
5.2.160.0070.03011.20
5.2.150.0030.03711.06
5.2.140.0030.03311.06
5.2.130.0100.02311.09
5.2.120.0170.02011.02
5.2.110.0000.03311.08
5.2.100.0070.02711.15
5.2.90.0030.03011.08
5.2.80.0070.02711.07
5.2.70.0030.03011.17
5.2.60.0030.03311.04
5.2.50.0030.03311.09
5.2.40.0030.03010.89
5.2.30.0000.03710.82
5.2.20.0000.03710.86
5.2.10.0070.02710.80
5.2.00.0070.02710.87
5.1.60.0070.03010.05
5.1.50.0030.0309.93
5.1.40.0000.02710.03
5.1.30.0070.02310.46
5.1.20.0030.02710.28
5.1.10.0000.0279.98
5.1.00.0030.0309.98
5.0.50.0030.0238.55
5.0.40.0000.0378.38
5.0.30.0000.0378.34
5.0.20.0070.0178.16
5.0.10.0030.0238.13
5.0.00.0000.0408.09
4.4.90.0000.0175.86
4.4.80.0030.0135.84
4.4.70.0070.0175.85
4.4.60.0000.0205.82
4.4.50.0000.0175.84
4.4.40.0030.0305.83
4.4.30.0030.0135.87
4.4.20.0030.0135.91
4.4.10.0100.0135.85
4.4.00.0000.0275.86
4.3.110.0000.0175.81
4.3.100.0000.0205.73
4.3.90.0000.0175.82
4.3.80.0000.0335.76
4.3.70.0030.0205.75
4.3.60.0070.0135.73
4.3.50.0000.0175.82
4.3.40.0000.0305.70
4.3.30.0070.0174.49
4.3.20.0000.0204.60
4.3.10.0030.0174.51
4.3.00.0100.0206.73

preferences:
53.85 ms | 401 KiB | 5 Q