3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '🏴󠁧󠁢󠁥󠁮󠁧󠁿'; $res = [ 'strlen' => strlen($str), 'mb_strlen' => mb_strlen($str), 'grapheme_strlen' => grapheme_strlen($str), ]; echo json_encode($res, JSON_PRETTY_PRINT); /* { "strlen": 28, "mb_strlen": 7, "grapheme_strlen": 1 } */

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)
8.3.60.0090.00617.63
8.3.50.0100.00721.12
8.3.40.0110.01119.76
8.3.30.0090.00620.34
8.3.20.0030.00524.55
8.3.10.0050.00324.66
8.3.00.0000.00826.16
8.2.180.0060.01025.92
8.2.170.0070.01122.96
8.2.160.0140.00022.96
8.2.150.0040.00425.66
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00021.97
8.2.110.0040.00722.04
8.2.100.0040.00918.78
8.2.90.0100.00318.75
8.2.80.0100.00319.86
8.2.70.0120.00318.50
8.2.60.0060.00318.93
8.2.50.0040.00418.75
8.2.40.0030.00618.75
8.2.30.0050.00319.01
8.2.20.0040.00421.32
8.2.10.0040.00419.18
8.2.00.0000.01020.21
8.1.280.0070.01425.92
8.1.270.0040.00423.99
8.1.260.0090.00026.35
8.1.250.0080.00028.09
8.1.240.0050.00918.36
8.1.230.0070.00718.82
8.1.220.0060.00318.77
8.1.210.0050.00318.77
8.1.200.0050.00518.13
8.1.190.0090.00018.22
8.1.180.0100.00020.01
8.1.170.0000.00818.41
8.1.160.0000.00719.80
8.1.150.0040.00419.55
8.1.140.0040.00418.31
8.1.130.0050.00319.88
8.1.120.0050.00218.32
8.1.110.0040.00418.41
8.1.100.0030.00818.25
8.1.90.0070.00018.30
8.1.80.0000.00818.32
8.1.70.0030.00318.38
8.1.60.0080.00418.52
8.1.50.0100.00518.46
8.1.40.0060.00318.50
8.1.30.0040.00418.55
8.1.20.0040.00818.64
8.1.10.0040.00718.65
8.1.00.0130.00718.45
8.0.300.0060.00318.77
8.0.290.0040.00417.75
8.0.280.0030.00319.48
8.0.270.0030.00317.80
8.0.260.0060.00019.46
8.0.250.0050.00217.84
8.0.240.0080.00017.83
8.0.230.0070.00017.79
8.0.220.0000.00817.66
8.0.210.0030.00617.69
8.0.200.0000.00717.71
8.0.190.0050.00317.76
8.0.180.0100.00717.62
8.0.170.0130.00517.77
8.0.160.0150.00417.68
8.0.150.0000.02017.73
8.0.140.0180.00017.60
8.0.130.0080.01217.77
8.0.120.0070.01017.80
8.0.110.0140.00317.75
8.0.100.0070.01117.88
8.0.90.0090.00917.96
8.0.80.0210.00017.82
8.0.70.0180.00317.91
8.0.60.0090.00917.62
8.0.50.0170.00417.83
8.0.30.0230.00017.94
8.0.20.0130.00418.05
8.0.10.0160.00418.00
7.4.330.0000.00515.55
7.4.320.0000.00617.45
7.4.300.0030.00317.29
7.4.290.0180.00317.35
7.4.280.0140.00717.50
7.4.270.0210.00317.53
7.4.260.0150.00917.33
7.4.250.0150.00717.43
7.4.240.0070.00417.44
7.4.230.0220.00417.42
7.4.220.0180.00317.46
7.4.210.0110.00017.43
7.4.200.0080.00417.32
7.4.190.0080.00517.49
7.4.180.0110.00817.56
7.4.160.0140.00417.46
7.4.150.0160.00717.24
7.4.140.0170.00417.30
7.4.130.0210.00317.33
7.4.120.0150.00617.36
7.4.110.0200.00317.30
7.4.100.0150.00817.38
7.4.90.0180.00417.42
7.4.80.0190.00417.39
7.4.70.0160.00517.35
7.4.60.0190.00417.34
7.4.50.0150.00417.29
7.4.40.0160.00617.24
7.4.30.0110.01117.36
7.4.20.0200.00417.41
7.4.10.0080.00617.47
7.4.00.0070.00517.32

preferences:
56.18 ms | 400 KiB | 5 Q