3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo $str = 'YİY', "\n"; echo bin2hex($str), "\n"; echo $tmp = mb_convert_case($str, MB_CASE_LOWER, 'UTF-8'), "\n"; echo bin2hex($tmp), "\n"; echo $tmp = mb_convert_case($tmp, MB_CASE_UPPER, 'UTF-8'), "\n"; echo bin2hex($tmp);

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)
8.4.120.0050.00424.11
8.4.110.0100.00722.20
8.4.100.0150.00517.67
8.4.90.0080.01018.43
8.4.80.0170.00517.55
8.4.70.0070.00118.03
8.4.60.0050.00418.70
8.4.50.0090.00818.68
8.4.40.0070.01319.34
8.4.30.0130.00722.23
8.4.20.0070.01320.37
8.4.10.0030.00622.55
8.3.250.0090.01018.91
8.3.240.0080.01017.16
8.3.230.0100.00616.49
8.3.220.0040.00417.05
8.3.210.0140.00418.24
8.3.200.0020.00716.51
8.3.190.0140.00517.19
8.3.180.0030.00516.79
8.3.170.0150.00320.50
8.3.160.0030.01017.16
8.3.150.0100.00717.27
8.3.140.0120.00420.56
8.3.130.0060.00318.22
8.3.120.0060.00319.09
8.3.110.0070.00720.94
8.3.100.0060.00316.37
8.3.90.0120.00626.77
8.3.80.0030.00616.50
8.3.70.0140.00416.58
8.3.60.0070.00718.18
8.3.50.0070.00718.23
8.3.40.0090.00618.88
8.3.30.0120.00318.84
8.3.20.0000.00720.71
8.3.10.0040.00423.65
8.3.00.0080.00022.36
8.2.290.0080.00820.21
8.2.280.0120.00718.25
8.2.270.0000.00818.94
8.2.260.0110.00717.02
8.2.250.0140.00318.31
8.2.240.0040.01117.20
8.2.230.0070.00322.58
8.2.220.0040.00424.06
8.2.210.0080.00326.77
8.2.200.0040.00416.50
8.2.190.0120.00316.58
8.2.180.0120.00318.29
8.2.170.0120.00322.96
8.2.160.0090.00620.36
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00220.94
8.2.110.0030.00622.14
8.2.100.0040.00817.84
8.2.90.0060.00317.75
8.2.80.0040.00419.82
8.2.70.0050.00317.63
8.2.60.0030.00618.03
8.2.50.0040.00418.10
8.2.40.0060.00319.26
8.2.30.0040.00419.25
8.2.20.0000.00718.21
8.2.10.0040.00419.31
8.2.00.0030.00519.23
8.1.330.0030.00423.60
8.1.320.0110.01015.85
8.1.310.0090.00916.79
8.1.300.0060.01216.18
8.1.290.0070.00430.84
8.1.280.0090.01225.92
8.1.270.0090.00023.58
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0060.00318.95
8.1.230.0080.00421.05
8.1.220.0060.00317.76
8.1.210.0040.00418.87
8.1.200.0030.00617.23
8.1.190.0060.00317.25
8.1.180.0040.00418.10
8.1.170.0060.00320.84
8.1.160.0030.00319.00
8.1.150.0000.01018.91
8.1.140.0000.00719.13
8.1.130.0050.00517.43
8.1.120.0020.00617.48
8.1.110.0000.00717.35
8.1.100.0040.00417.47
8.1.90.0070.00017.35
8.1.80.0050.00317.35
8.1.70.0040.00417.43
8.1.60.0070.00017.50
8.1.50.0000.00817.51
8.1.40.0090.00017.50
8.1.30.0040.00417.63
8.1.20.0030.00617.64
8.1.10.0040.00417.56
8.1.00.0040.00417.41
8.0.300.0000.00720.11
8.0.290.0020.00516.63
8.0.280.0070.00018.44
8.0.270.0050.00316.89
8.0.260.0000.00816.83
8.0.250.0070.00017.00
8.0.240.0030.00316.93
8.0.230.0080.00016.96
8.0.220.0030.00316.98
8.0.210.0040.00416.83
8.0.200.0030.00316.99
8.0.190.0040.00416.93
8.0.180.0040.00416.93
8.0.170.0040.00416.79
8.0.160.0060.00316.96
8.0.150.0040.00416.77
8.0.140.0030.00516.83
8.0.130.0050.00013.31
8.0.120.0030.00516.86
8.0.110.0070.00016.77
8.0.100.0000.00716.86
8.0.90.0090.00016.75
8.0.80.0030.01116.89
8.0.70.0000.00716.83
8.0.60.0040.00417.00
8.0.50.0040.00416.87
8.0.30.0100.01117.15
8.0.20.0110.00817.02
8.0.10.0030.00316.91
8.0.00.0050.01316.90
7.4.330.0020.00215.55
7.4.320.0030.00316.64
7.4.300.0000.00616.58
7.4.290.0000.00716.60
7.4.280.0070.00316.57
7.4.270.0000.00616.45
7.4.260.0030.00313.30
7.4.250.0040.00416.48
7.4.240.0040.00316.63
7.4.230.0030.00316.60
7.4.220.0020.00516.48
7.4.210.0100.00816.54
7.4.200.0070.00016.62
7.4.130.0190.00316.46
7.4.120.0030.01516.31
7.4.110.0070.01016.48
7.4.100.0060.01216.42
7.4.90.0100.00716.49
7.4.80.0140.01019.39
7.4.70.0070.01016.39
7.4.60.0090.00916.36
7.4.50.0110.00416.56
7.4.40.0150.00316.52
7.4.00.0100.00514.90
7.3.330.0060.00016.32
7.3.320.0000.00513.18
7.3.310.0070.00016.20
7.3.300.0000.00716.10
7.3.290.0030.00316.25
7.3.280.0040.01516.29
7.3.260.0130.00716.24
7.3.240.0130.00616.32
7.3.230.0080.01116.50
7.3.210.0120.01216.37
7.3.200.0110.00716.23
7.3.190.0090.00616.26
7.3.180.0070.01516.38
7.3.170.0110.00716.39
7.3.160.0150.00616.49
7.3.120.0090.00914.46
7.3.110.0130.00614.68
7.3.100.0080.00814.55
7.3.90.0070.00514.61
7.3.80.0090.00514.55
7.3.70.0070.00714.64
7.3.60.0070.00714.70
7.3.50.0070.00714.51
7.3.40.0060.01014.69
7.3.30.0060.00914.75
7.3.20.0040.01015.75
7.3.10.0100.00615.66
7.3.00.0100.00915.60
7.2.330.0040.01416.57
7.2.320.0060.01516.48
7.2.310.0130.00616.37
7.2.300.0090.01216.33
7.2.290.0120.01116.58
7.2.250.0060.01215.07
7.2.240.0070.01314.85
7.2.230.0090.00914.89
7.2.220.0060.01014.99
7.2.210.0090.00715.01
7.2.200.0080.00514.92
7.2.190.0080.00714.99
7.2.180.0070.00815.02
7.2.170.0030.01415.00
7.2.160.0030.01015.06
7.2.150.0120.00315.92
7.2.140.0070.00616.09
7.2.130.0070.01616.07
7.2.120.0100.00716.06
7.2.110.0070.01115.83
7.2.100.0070.01216.01
7.2.90.0120.00315.98
7.2.80.0120.00716.13
7.2.70.0090.00715.81
7.2.60.0080.01115.96
7.2.50.0130.00916.11
7.2.40.0110.00916.01
7.2.30.0090.00915.91
7.2.20.0100.00815.88
7.2.10.0070.01315.75
7.2.00.0090.01116.05
7.1.330.0070.01115.89
7.1.320.0080.00714.90
7.1.310.0090.00614.87
7.1.300.0090.00714.64
7.1.290.0090.00614.80
7.1.280.0090.00714.77
7.1.270.0050.00814.86
7.1.260.0090.00714.61
7.1.250.0060.01214.68
7.1.240.0060.01015.79
7.1.230.0110.00015.71
7.1.220.0080.00015.54
7.1.210.0060.00315.83
7.1.200.0000.01415.58
7.1.190.0030.01415.81
7.1.180.0090.00615.77
7.1.170.0060.00915.82
7.1.160.0070.00715.52
7.1.150.0030.00915.55
7.1.140.0030.01315.75
7.1.130.0040.01415.55
7.1.120.0030.00715.65
7.1.110.0000.01015.58
7.1.100.0040.01115.73
7.1.90.0030.01315.59
7.1.80.0060.00615.74
7.1.70.0040.00815.73
7.1.60.0040.01115.77
7.1.50.0030.00915.88
7.1.40.0040.01115.78
7.1.30.0100.00715.45
7.1.20.0090.00615.81
7.1.10.0030.00815.85
7.1.00.0090.00615.73

preferences:
36.05 ms | 403 KiB | 5 Q