3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a($string, $length) { $string = substr($string, 0, $length); $string = substr($string, 0, strrpos($string, ' ')); return $string; } function b($string, $length) { $words = explode(' ', $string); $string = array_reduce($words, function ($current, $item) use ($length) { return mb_strlen($current) > $length ? $current : "$current$item "; }, ''); return $string; } $length = 40; $string = 'The fox flew over the moon. The cow did a big twist into the pool.'; var_dump(a($string, $length)); var_dump(b($string, $length));

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)
8.3.80.0030.00817.97
8.3.70.0090.00918.30
8.3.60.0110.01118.43
8.3.50.0140.00416.72
8.3.40.0030.01023.70
8.3.30.0120.00318.41
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0070.00026.16
8.2.200.0040.00418.88
8.2.190.0100.01018.04
8.2.180.0150.00616.32
8.2.170.0110.01119.02
8.2.160.0030.01722.96
8.2.150.0040.00425.66
8.2.140.0150.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00026.16
8.2.110.0030.00620.47
8.2.100.0080.00417.84
8.2.90.0040.00417.63
8.2.80.0040.00418.78
8.2.70.0040.00417.63
8.2.60.0040.00417.50
8.2.50.0040.00417.63
8.2.40.0030.00519.48
8.2.30.0030.00617.53
8.2.20.0000.00917.54
8.2.10.0090.00917.69
8.2.00.0050.01117.68
8.1.290.0040.00430.84
8.1.280.0040.01125.92
8.1.270.0080.00024.66
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0050.00522.11
8.1.230.0080.00420.90
8.1.220.0000.00818.60
8.1.210.0030.00518.77
8.1.200.0050.00317.35
8.1.190.0050.00317.36
8.1.180.0000.00922.08
8.1.170.0070.00017.62
8.1.160.0040.00717.40
8.1.150.0100.00717.27
8.1.140.0170.00017.29
8.1.130.0070.00917.30
8.1.120.0000.01617.39
8.1.110.0110.00617.34
8.1.100.0120.00417.48
8.1.90.0120.00417.50
8.1.80.0100.00517.36
8.1.70.0130.00417.44
8.1.60.0170.00317.55
8.1.50.0140.00717.58
8.1.40.0150.00317.68
8.1.30.0150.00017.61
8.1.20.0150.00517.70
8.1.10.0140.00517.61
8.1.00.0150.00417.51
8.0.300.0000.00718.77
8.0.290.0120.00416.58
8.0.280.0090.00316.73
8.0.270.0130.00316.74
8.0.260.0080.00816.81
8.0.250.0080.00816.81
8.0.240.0120.00416.82
8.0.230.0050.00916.82
8.0.220.0130.00016.80
8.0.210.0070.00716.73
8.0.200.0070.00516.82
8.0.190.0090.00516.86
8.0.180.0090.00216.75
8.0.170.0110.00416.86
8.0.160.0040.00916.77
8.0.150.0080.00816.73
8.0.140.0080.00816.85
8.0.130.0120.00416.76
8.0.120.0100.00516.79
8.0.110.0150.00016.73
8.0.100.0110.00616.73
8.0.90.0140.00216.88
8.0.80.0100.00516.79
8.0.70.0060.01016.73
8.0.60.0130.00216.86
8.0.50.0140.00016.83
8.0.30.0120.00416.84
8.0.20.0050.01016.81
8.0.10.0100.00516.73

preferences:
14.54 ms | 401 KiB | 5 Q