3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'é'; echo mb_strlen($a, 'utf8'), "\n"; $b = Normalizer::normalize($a, Normalizer::NFD); echo mb_strlen($b, 'utf8'), "\n";

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)
8.3.70.0120.00916.61
8.3.60.0110.00416.86
8.3.50.0060.00918.66
8.3.40.0140.00318.75
8.3.30.0090.00618.88
8.3.20.0070.00024.18
8.3.10.0070.00024.66
8.3.00.0000.00826.16
8.2.190.0150.00317.25
8.2.180.0140.01125.92
8.2.170.0110.00418.93
8.2.160.0090.00622.96
8.2.150.0040.00425.66
8.2.140.0050.00324.66
8.2.130.0000.00726.16
8.2.120.0080.00019.77
8.2.110.0030.00622.64
8.2.100.0090.00318.16
8.2.90.0000.00919.42
8.2.80.0030.00617.97
8.2.70.0000.01017.88
8.2.60.0000.01318.14
8.2.50.0030.00618.07
8.2.40.0040.00418.59
8.2.30.0030.00618.25
8.2.20.0000.00818.36
8.2.10.0060.00321.20
8.2.00.0070.00019.54
8.1.280.0090.00625.92
8.1.270.0070.00023.99
8.1.260.0090.00026.35
8.1.250.0000.00728.09
8.1.240.0030.00624.15
8.1.230.0030.00923.05
8.1.220.0030.00517.91
8.1.210.0060.00318.77
8.1.200.0030.00617.60
8.1.190.0040.00417.60
8.1.180.0000.00818.10
8.1.170.0000.00818.84
8.1.160.0000.00819.05
8.1.150.0000.00718.88
8.1.140.0040.00419.18
8.1.130.0080.00020.45
8.1.120.0040.00417.61
8.1.110.0030.00517.52
8.1.100.0050.00317.68
8.1.90.0090.00017.61
8.1.80.0000.00717.54
8.1.70.0000.00817.52
8.1.60.0000.00817.96
8.1.50.0070.00217.70
8.1.40.0040.00817.73
8.1.30.0050.00317.94
8.1.20.0030.00617.77
8.1.10.0030.00617.89
8.1.00.0030.00617.91
8.0.300.0040.00418.77
8.0.290.0000.00716.88
8.0.280.0030.00318.74
8.0.270.0030.00318.31
8.0.260.0030.00318.86
8.0.250.0000.00717.12
8.0.240.0030.00317.21
8.0.230.0000.00717.09
8.0.220.0050.00217.05
8.0.210.0040.00417.06
8.0.200.0070.00017.19
8.0.190.0030.00617.24
8.0.180.0040.00417.17
8.0.170.0030.00617.18
8.0.160.0000.00816.99
8.0.150.0000.00717.00
8.0.140.0030.00417.17
8.0.130.0030.00313.45
8.0.120.0040.00416.96
8.0.110.0030.00517.09
8.0.100.0040.00417.18
8.0.90.0080.00017.22
8.0.80.0000.00717.15
8.0.70.0000.00817.01
8.0.60.0070.00017.12
8.0.50.0030.00517.15
8.0.30.0000.00716.98
8.0.20.0050.00317.19
8.0.10.0040.00417.09
8.0.00.0040.00417.09
7.4.330.0000.00515.55
7.4.320.0030.00316.80
7.4.300.0030.00316.78
7.4.290.0040.00416.61
7.4.280.0020.00516.79
7.4.270.0040.00416.76
7.4.260.0050.00013.27
7.4.250.0030.00516.64
7.4.240.0040.00416.79
7.4.230.0030.00316.79
7.4.220.0000.00716.75
7.4.210.0030.00316.65
7.4.200.0020.00516.84
7.4.190.0030.00316.69
7.4.180.0000.00716.71
7.4.160.0030.00316.62
7.4.150.0070.00016.77
7.4.140.0080.00016.91
7.4.130.0000.00816.70
7.4.120.0000.00816.72
7.4.110.0030.00516.94
7.4.100.0040.00416.79
7.4.90.0050.00316.78
7.4.80.0000.00916.92
7.4.70.0000.00816.84
7.4.60.0050.00316.70
7.4.50.0040.00416.83
7.4.40.0080.00016.85
7.4.30.0000.00816.55
7.4.20.0000.00816.56
7.4.10.0000.00816.84
7.4.00.0080.00016.65
7.3.330.0000.00716.31
7.3.320.0050.00013.30
7.3.310.0000.00716.32
7.3.300.0040.00416.22
7.3.290.0030.00316.41
7.3.280.0070.00016.37
7.3.270.0030.00316.33
7.3.260.0040.00416.38
7.3.250.0050.00316.41
7.3.240.0080.00016.19
7.3.230.0020.00516.38
7.3.220.0030.00316.39
7.3.210.0030.00316.32
7.3.200.0040.00416.30
7.3.190.0000.00716.41
7.3.180.0040.00416.23
7.3.170.0020.00516.32
7.3.160.0030.00316.34
7.3.150.0060.00016.35
7.3.140.0000.00616.23
7.3.130.0070.00016.12
7.3.120.0070.00016.39
7.3.110.0060.00016.36
7.3.100.0030.00316.24
7.3.90.0030.00316.63
7.3.80.0070.00016.36
7.3.70.0030.00616.46
7.3.60.0030.00516.61
7.3.50.0070.00016.32
7.3.40.0000.00716.46
7.3.30.0080.00016.45
7.3.20.0000.00718.16
7.3.10.0000.00718.12
7.3.00.0050.00218.17

preferences:
51.48 ms | 401 KiB | 5 Q