3v4l.org

run code in 300+ PHP versions simultaneously
<?php $sentence = strtolower('Cozy Qbert honks grawlix'); $usage = count_chars($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)
8.3.60.0040.01118.18
8.3.50.0100.01018.38
8.3.40.0130.01018.82
8.3.30.0040.01118.59
8.3.20.0000.00724.18
8.3.10.0050.00324.66
8.3.00.0080.00026.16
8.2.180.0140.00425.92
8.2.170.0090.00619.06
8.2.160.0030.01022.96
8.2.150.0080.00025.66
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0040.00426.35
8.2.110.0030.00620.53
8.2.100.0040.00818.00
8.2.90.0070.00317.96
8.2.80.0030.00517.75
8.2.70.0000.00917.63
8.2.60.0050.00318.03
8.2.50.0060.00318.07
8.2.40.0040.00418.22
8.2.30.0040.00418.07
8.2.20.0040.00418.17
8.2.10.0040.00419.24
8.2.00.0080.00019.39
8.1.280.0120.00325.92
8.1.270.0080.00023.99
8.1.260.0000.00828.09
8.1.250.0090.00028.09
8.1.240.0070.00322.52
8.1.230.0120.00020.88
8.1.220.0060.00317.78
8.1.210.0080.00018.91
8.1.200.0100.00017.35
8.1.190.0030.00617.36
8.1.180.0040.00418.10
8.1.170.0040.00418.71
8.1.160.0030.00518.89
8.1.150.0040.00418.79
8.1.140.0050.00218.86
8.1.130.0040.00420.03
8.1.120.0040.00417.59
8.1.110.0040.00417.45
8.1.100.0070.00017.54
8.1.90.0040.00417.48
8.1.80.0050.00317.45
8.1.70.0070.00017.41
8.1.60.0030.00517.69
8.1.50.0030.00617.51
8.1.40.0040.00417.56
8.1.30.0040.00417.59
8.1.20.0000.00917.66
8.1.10.0030.00517.63
8.1.00.0080.00017.61
8.0.300.0000.00720.11
8.0.290.0060.00316.88
8.0.280.0040.00418.30
8.0.270.0040.00417.98
8.0.260.0030.00318.43
8.0.250.0000.00716.96
8.0.240.0000.01017.06
8.0.230.0000.00717.08
8.0.220.0000.00716.99
8.0.210.0000.00716.89
8.0.200.0000.00717.03
8.0.190.0040.00417.03
8.0.180.0070.00016.94
8.0.170.0040.00416.99
8.0.160.0000.00716.96
8.0.150.0050.00316.85
8.0.140.0040.00416.84
8.0.130.0030.00313.39
8.0.120.0040.00416.96
8.0.110.0000.00816.93
8.0.100.0050.00316.88
8.0.90.0000.00716.87
8.0.80.0110.00716.94
8.0.70.0030.00516.89
8.0.60.0000.00716.96
8.0.50.0050.00317.06
8.0.30.0090.01217.34
8.0.20.0100.00817.17
8.0.10.0050.00316.98
8.0.00.0130.01016.82
7.4.330.0050.00015.55
7.4.320.0000.00616.78
7.4.300.0030.00316.80
7.4.290.0070.00016.61
7.4.280.0060.00316.80
7.4.270.0050.00216.78
7.4.260.0000.00513.46
7.4.250.0000.00716.78
7.4.240.0070.00016.82
7.4.230.0030.00316.68
7.4.220.0000.00716.72
7.4.210.0100.00716.64
7.4.200.0000.00716.80
7.4.130.0170.00216.60
7.4.120.0100.01016.68
7.4.110.0070.01016.65
7.4.100.0160.00616.63
7.4.90.0140.00416.63
7.4.80.0090.00919.39
7.4.70.0040.01716.64
7.4.60.0080.01216.63
7.4.50.0080.01616.64
7.4.40.0150.00316.52
7.4.30.0100.00816.79
7.4.20.0060.00916.81
7.4.10.0060.01016.76
7.4.00.0170.00016.58
7.3.330.0030.00316.42
7.3.320.0050.00013.21
7.3.310.0070.00016.26
7.3.300.0030.00316.37
7.3.290.0090.00616.47
7.3.260.0060.01216.45
7.3.240.0090.00716.61
7.3.230.0060.01216.54
7.3.210.0100.00716.71
7.3.200.0060.01016.73
7.3.190.0090.00916.47
7.3.180.0110.00716.57
7.3.170.0040.02016.78
7.3.160.0070.01116.33
7.3.150.0080.01016.62
7.3.140.0540.00516.58
7.3.130.0160.00616.32
7.3.120.0120.00616.38
7.3.110.0040.01316.68
7.3.100.0040.01816.45
7.3.90.0140.00416.60
7.3.80.0090.01116.82
7.3.70.0130.01016.54
7.3.60.0120.01216.34
7.3.50.0130.01016.41
7.3.40.0110.00616.48
7.3.30.0140.00616.34
7.3.20.0030.01316.39
7.3.10.0090.00916.64
7.3.00.0140.00416.57
7.2.330.0100.00716.81
7.2.320.0000.01716.70
7.2.310.0310.01516.57
7.2.300.0240.00316.82
7.2.290.0110.00816.75
7.2.280.0060.00916.51
7.2.270.0100.00716.83
7.2.260.0030.01516.70
7.2.250.0070.01016.79
7.2.240.0090.00816.63
7.2.230.0170.00416.73
7.2.220.0080.00816.72
7.2.210.0070.01416.80
7.2.200.0140.01016.59
7.2.190.0080.01716.48
7.2.180.0130.01016.80
7.2.170.0110.00516.76
7.2.160.0070.01116.90
7.2.150.0100.00716.69
7.2.140.0090.00916.71
7.2.130.0060.01216.86
7.2.120.0130.00516.76
7.2.110.0040.01216.65
7.2.100.0150.00416.66
7.2.90.0030.01616.69
7.2.80.0110.00816.70
7.2.70.0040.01416.63
7.2.60.0070.01216.90
7.2.50.0050.01416.83
7.2.40.0060.01216.75
7.2.30.0110.00916.66
7.2.20.0000.01916.61
7.2.10.0120.00816.54
7.2.00.0090.00916.58

preferences:
147.08 ms | 401 KiB | 5 Q