3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sentence = 'Jumpy Qbert grawlix'; $usage = count_chars(strtolower($sentence), 3); $alphabet = range('a', 'z'); var_export([ 'Sentence' => $sentence, 'Total Length' => strlen($sentence), 'Alphabetical Length' => preg_match_all('~[a-z]~', $sentence, $letters), 'Unused Letters' => array_diff($alphabet, $letters[0]), 'Duplicated Letters' => array_diff(array_count_values($letters[0]), [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)
8.3.40.0070.00718.83
8.3.30.0040.01118.87
8.3.20.0000.00724.18
8.3.10.0050.00324.66
8.3.00.0080.00026.16
8.2.170.0090.00619.10
8.2.160.0070.00722.96
8.2.150.0060.00325.66
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0070.00026.35
8.2.110.0100.00021.00
8.2.100.0130.00017.93
8.2.90.0060.00319.09
8.2.80.0000.00817.97
8.2.70.0040.00417.75
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0030.00618.09
8.2.30.0040.00418.14
8.2.20.0040.00418.08
8.2.10.0070.00019.28
8.2.00.0040.00419.34
8.1.270.0030.00523.99
8.1.260.0000.00828.09
8.1.250.0000.00728.09
8.1.240.0040.00819.43
8.1.230.0060.00617.79
8.1.220.0030.00617.78
8.1.210.0030.00618.77
8.1.200.0100.00017.48
8.1.190.0030.00617.35
8.1.180.0030.00618.10
8.1.170.0000.00918.61
8.1.160.0000.00718.74
8.1.150.0070.00018.86
8.1.140.0080.00018.88
8.1.130.0000.00720.15
8.1.120.0080.00017.46
8.1.110.0030.00517.60
8.1.100.0050.00317.44
8.1.90.0070.00017.57
8.1.80.0040.00417.45
8.1.70.0000.00717.55
8.1.60.0030.00617.59
8.1.50.0040.00417.58
8.1.40.0040.00417.64
8.1.30.0000.00817.83
8.1.20.0000.00817.66
8.1.10.0040.00417.74
8.1.00.0080.00017.68
8.0.300.0040.00418.77
8.0.290.0060.00316.88
8.0.280.0030.00318.30
8.0.270.0000.00718.12
8.0.260.0000.00618.43
8.0.250.0000.00817.05
8.0.240.0070.00317.11
8.0.230.0030.00316.97
8.0.220.0050.00316.97
8.0.210.0070.00017.04
8.0.200.0040.00417.07
8.0.190.0040.00416.95
8.0.180.0000.00716.89
8.0.170.0000.00917.03
8.0.160.0050.00317.00
8.0.150.0000.00816.93
8.0.140.0050.00216.93
8.0.130.0060.00013.36
8.0.120.0070.00016.81
8.0.110.0080.00016.91
8.0.100.0040.00416.91
8.0.90.0030.00316.88
8.0.80.0040.01316.99
8.0.70.0040.00416.87
8.0.60.0040.00416.89
8.0.50.0000.00816.96
8.0.30.0150.00417.32
8.0.20.0120.00517.08
8.0.10.0070.00017.23
8.0.00.0100.01417.11
7.4.330.0050.00015.55
7.4.320.0000.00616.84
7.4.300.0030.00316.76
7.4.290.0000.00716.72
7.4.280.0030.00716.66
7.4.270.0000.00716.76
7.4.260.0000.00513.44
7.4.250.0030.00316.66
7.4.240.0000.00716.58
7.4.230.0030.00316.80
7.4.220.0040.00416.59
7.4.210.0070.00916.78
7.4.200.0080.00016.52
7.4.130.0120.01016.63
7.4.120.0100.01016.65
7.4.110.0070.01016.65
7.4.100.0070.01116.73
7.4.90.0030.01416.77
7.4.80.0090.01319.39
7.4.70.0120.00616.74
7.4.60.0070.01416.55
7.4.50.0100.01016.73
7.4.40.0130.00316.46
7.4.30.0110.00916.58
7.4.20.0100.00716.46
7.4.10.0080.00916.61
7.4.00.0120.00416.79
7.3.330.0040.00416.46
7.3.320.0000.00513.28
7.3.310.0000.00716.32
7.3.300.0070.00016.41
7.3.290.0090.00916.47
7.3.260.0100.01016.67
7.3.240.0090.01016.59
7.3.230.0100.00716.66
7.3.210.0150.00416.84
7.3.200.0090.01216.45
7.3.190.0130.00516.61
7.3.180.0100.01416.54
7.3.170.0060.01116.43
7.3.160.0140.00416.48
7.3.150.0060.01216.63
7.3.140.0100.00716.82
7.3.130.0060.01016.71
7.3.120.0050.01116.39
7.3.110.0080.01116.46
7.3.100.0080.00816.43
7.3.90.0120.00416.43
7.3.80.0090.00916.52
7.3.70.0120.00616.49
7.3.60.0070.01116.49
7.3.50.0250.00016.57
7.3.40.0060.01316.43
7.3.30.0100.00716.49
7.3.20.0000.01816.57
7.3.10.0110.00916.63
7.3.00.0070.01016.55
7.2.330.0090.00816.84
7.2.320.0110.00616.59
7.2.310.0060.01216.72
7.2.300.0090.00916.78
7.2.290.0150.00916.64
7.2.280.0040.01416.77
7.2.270.0000.01816.73
7.2.260.0080.00816.65
7.2.250.0140.00316.68
7.2.240.0040.01516.61
7.2.230.0040.01316.66
7.2.220.0120.01216.62
7.2.210.0070.01016.50
7.2.200.0090.00916.68
7.2.190.0120.01216.57
7.2.180.0080.01716.64
7.2.170.0030.01616.55
7.2.160.0060.01216.87
7.2.150.0110.00816.72
7.2.140.0070.01016.83
7.2.130.0120.00616.71
7.2.120.0110.00716.66
7.2.110.0070.01116.63
7.2.100.0040.01616.73
7.2.90.0270.00616.70
7.2.80.0120.00516.62
7.2.70.0110.00516.68
7.2.60.0100.00716.55
7.2.50.0140.00916.77
7.2.40.0090.01616.67
7.2.30.0070.01816.65
7.2.20.0090.01416.52
7.2.10.0120.01216.88
7.2.00.0110.00816.48

preferences:
62.64 ms | 400 KiB | 5 Q