3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo(mb_check_encoding(mb_substr("Vínícius", 1, 1, 'UTF-32BE'), '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)
8.3.60.0080.00618.14
8.3.50.0140.00522.05
8.3.40.0120.00318.70
8.3.30.0100.00318.54
8.3.20.0040.00420.20
8.3.10.0060.00320.23
8.3.00.0070.00023.61
8.2.180.0110.00716.38
8.2.170.0110.00422.96
8.2.160.0160.00422.16
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00420.81
8.2.120.0000.00826.35
8.2.110.0000.01020.52
8.2.100.0000.01217.84
8.2.90.0040.00419.09
8.2.80.0060.00317.97
8.2.70.0070.00317.50
8.2.60.0030.00717.68
8.2.50.0080.00318.09
8.2.40.0050.00320.12
8.2.30.0040.00419.35
8.2.20.0040.00417.59
8.2.10.0040.00418.03
8.2.00.0040.00417.79
8.1.280.0100.00325.92
8.1.270.0060.00321.80
8.1.260.0070.00028.09
8.1.250.0000.00828.09
8.1.240.0060.00322.14
8.1.230.0070.00417.42
8.1.220.0060.00317.74
8.1.210.0040.00418.77
8.1.200.0090.00017.10
8.1.190.0030.00517.23
8.1.180.0070.00018.10
8.1.170.0050.00318.50
8.1.160.0040.00420.59
8.1.150.0040.00420.61
8.1.140.0060.00319.48
8.1.130.0030.00317.66
8.1.120.0000.00817.29
8.1.110.0070.00017.32
8.1.100.0000.00717.34
8.1.90.0000.00717.43
8.1.80.0070.00017.41
8.1.70.0000.00717.30
8.1.60.0040.00417.50
8.1.50.0060.00317.43
8.1.40.0000.00817.33
8.1.30.0080.00017.47
8.1.20.0000.00817.36
8.1.10.0000.00817.51
8.1.00.0080.00417.43
8.0.300.0070.00018.77
8.0.290.0000.00716.63
8.0.280.0070.00018.34
8.0.270.0070.00017.16
8.0.260.0020.00517.25
8.0.250.0030.00316.85
8.0.240.0030.00316.92
8.0.230.0050.00216.83
8.0.220.0040.00416.82
8.0.210.0080.00016.69
8.0.200.0030.00316.88
8.0.190.0040.00416.91
8.0.180.0040.00416.69
8.0.170.0060.00316.83
8.0.160.0040.00416.78
8.0.150.0000.01016.82
8.0.140.0030.00716.78
8.0.130.0000.00613.30
8.0.120.0000.00816.80
8.0.110.0030.00616.75
8.0.100.0040.00416.84
8.0.90.0040.00416.72
8.0.80.0120.00316.77
8.0.70.0000.00716.86
8.0.60.0000.00716.72
8.0.50.0040.00416.61
8.0.30.0140.00716.97
8.0.20.0110.00817.40
8.0.10.0050.00316.79
8.0.00.0100.00816.65
7.4.330.0000.00416.84
7.4.320.0030.00316.58
7.4.300.0060.00016.53
7.4.290.0000.01216.55
7.4.280.0080.00016.31
7.4.270.0030.00316.55
7.4.260.0000.00716.43
7.4.250.0030.00316.40
7.4.240.0070.00016.49
7.4.230.0070.00016.18
7.4.220.0120.00616.46
7.4.210.0100.01016.44
7.4.200.0000.00716.61
7.4.160.0140.00316.33
7.4.150.0130.00517.40
7.4.140.0050.01117.86
7.4.130.0080.01016.44
7.4.120.0100.01116.39
7.4.110.0090.00916.49
7.4.100.0100.01516.22
7.4.90.0150.00316.32
7.4.80.0150.00919.39
7.4.70.0100.00716.49
7.4.60.0030.01316.25
7.4.50.0030.01316.34
7.4.40.0070.01016.27
7.4.30.0070.01016.41
7.4.00.0030.00614.55
7.3.330.0000.00512.95
7.3.320.0000.00513.07
7.3.310.0050.00316.34
7.3.300.0030.00316.23
7.3.290.0050.00216.15
7.3.280.0120.00916.22
7.3.270.0090.00917.40
7.3.260.0190.00516.22
7.3.250.0110.01016.38
7.3.240.0060.01416.13
7.3.230.0090.00916.39
7.3.210.0100.01116.22
7.3.200.0130.00316.23
7.3.190.0030.01316.10
7.3.180.0170.00616.22
7.3.170.0070.01016.40
7.3.160.0000.01616.51
7.3.10.0080.00516.77
7.3.00.0040.00616.50
7.2.330.0170.00016.45
7.2.320.0110.01116.59
7.2.310.0100.00616.52
7.2.300.0070.01016.68
7.2.290.0060.00916.50
7.2.130.0060.00816.73
7.2.120.0050.00616.81
7.2.110.0030.01016.85
7.2.100.0090.00316.56
7.2.90.0070.00616.76
7.2.80.0060.00516.84
7.2.70.0020.01016.90
7.2.60.0080.00816.82
7.2.50.0050.00816.77
7.2.40.0100.00216.80
7.2.30.0050.00616.50
7.2.20.0040.01116.48
7.2.10.0020.00916.71
7.2.00.0050.00917.35
7.1.250.0050.00915.66
7.1.200.0030.00715.61
7.1.100.0860.00916.20
7.1.70.0030.00616.70
7.1.60.0040.00717.21
7.1.50.0090.00616.93
7.1.00.0070.07322.25
7.0.200.0000.01416.56
7.0.60.0200.04320.00
7.0.50.0070.08017.81
7.0.40.0000.10019.84
7.0.30.0530.06720.09
7.0.20.0370.06720.17
7.0.10.0030.06320.33
7.0.00.0170.05720.19
5.6.210.0030.08320.75
5.6.200.0170.07718.19
5.6.190.0100.05320.61
5.6.180.0270.08020.61
5.6.170.0330.06720.40
5.6.160.0000.09320.48
5.6.150.0130.07318.18
5.6.140.0130.05718.18
5.6.130.0130.04018.08
5.6.120.0030.06021.01
5.6.110.0030.08721.11
5.6.100.0000.04320.97
5.6.90.0130.07721.09
5.6.80.0070.06320.35
5.5.350.3670.04020.48
5.5.340.0100.04718.02
5.5.330.0130.04020.37
5.5.320.0530.04020.17
5.5.310.0170.04020.43
5.5.300.0100.08018.01
5.5.290.0070.07717.96
5.5.280.0070.03720.87
5.5.270.0070.07320.75
5.5.260.0070.04320.71
5.5.250.0130.06320.61
5.5.240.0300.06320.25

preferences:
54.52 ms | 401 KiB | 5 Q