3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 'foo', 'foo', 'bar', 'baZ', 'baz', 'fÖo' ]; $arrRes = []; $arrLower = []; foreach ($arr as $v) { $lower = mb_strtolower($v, 'utf-8'); foreach ($arrLower as $lower2) { if ($lower === $lower2) { continue 2; } } $arrRes[] = $v; $arrLower[] = $lower; } var_dump($arrRes);

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)
8.3.60.0110.00416.59
8.3.50.0150.00016.38
8.3.40.0070.01118.79
8.3.30.0080.00618.61
8.3.20.0090.00020.35
8.3.10.0080.00021.81
8.3.00.0080.00019.43
8.2.180.0120.00618.11
8.2.170.0140.00722.96
8.2.160.0100.00319.21
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00019.32
8.2.120.0040.00426.35
8.2.110.0030.00622.08
8.2.100.0060.00617.91
8.2.90.0000.00819.17
8.2.80.0000.00817.97
8.2.70.0030.00717.63
8.2.60.0040.00418.05
8.2.50.0040.00418.10
8.2.40.0020.00520.41
8.2.30.0000.00719.19
8.2.20.0040.00418.11
8.2.10.0070.00018.06
8.2.00.0040.00418.18
8.1.280.0040.01825.92
8.1.270.0070.00022.09
8.1.260.0040.00426.35
8.1.250.0050.00228.09
8.1.240.0090.00023.97
8.1.230.0040.00722.20
8.1.220.0000.00817.79
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0040.00417.35
8.1.180.0050.00318.10
8.1.170.0040.00418.63
8.1.160.0040.00419.07
8.1.150.0000.00818.93
8.1.140.0000.00819.55
8.1.130.0000.00719.00
8.1.120.0000.00717.54
8.1.110.0040.00417.45
8.1.100.0040.00417.41
8.1.90.0080.00017.51
8.1.80.0000.00817.47
8.1.70.0000.00717.41
8.1.60.0060.00317.69
8.1.50.0080.00017.46
8.1.40.0000.00817.59
8.1.30.0030.00517.67
8.1.20.0030.00617.73
8.1.10.0000.00817.46
8.1.00.0000.00717.50
8.0.300.0040.00418.77
8.0.290.0000.00716.75
8.0.280.0040.00418.38
8.0.270.0000.00717.32
8.0.260.0060.00016.79
8.0.250.0050.00217.07
8.0.240.0000.01017.06
8.0.230.0070.00016.89
8.0.220.0000.00717.05
8.0.210.0070.00016.91
8.0.200.0030.00317.03
8.0.190.0030.00717.00
8.0.180.0020.00517.02
8.0.170.0040.00416.96
8.0.160.0000.00817.07
8.0.150.0000.00716.88
8.0.140.0070.00016.85
8.0.130.0080.00013.39
8.0.120.0000.00816.77
8.0.110.0030.00317.00
8.0.100.0040.00416.98
8.0.90.0000.00716.84
8.0.80.0070.01016.94
8.0.70.0020.00516.83
8.0.60.0040.00416.96
8.0.50.0070.00016.82
8.0.30.0060.00917.04
8.0.20.0110.01217.40
8.0.10.0040.00416.81
8.0.00.0110.00716.91
7.4.330.0050.00015.55
7.4.320.0000.00616.67
7.4.300.0070.00016.66
7.4.290.0000.00716.50
7.4.280.0000.00716.66
7.4.270.0070.00016.63
7.4.260.0030.00316.64
7.4.250.0040.00416.63
7.4.240.0040.00416.68
7.4.230.0050.00216.48
7.4.220.0070.01016.56
7.4.210.0090.00616.61
7.4.200.0050.00316.74
7.4.160.0140.00316.48
7.4.150.0110.01217.40
7.4.140.0110.00817.86
7.4.130.0200.00316.60
7.4.120.0090.01116.52
7.4.110.0100.00916.61
7.4.100.0190.00616.29
7.4.90.0030.01416.72
7.4.80.0030.01419.39
7.4.70.0130.00316.48
7.4.60.0060.01016.52
7.4.50.0070.01016.36
7.4.40.0080.01516.61
7.4.30.0070.01616.47
7.4.00.0060.00614.87
7.3.330.0030.00313.19
7.3.320.0000.00513.29
7.3.310.0000.00716.54
7.3.300.0000.00716.43
7.3.290.0060.00016.33
7.3.280.0080.00816.43
7.3.270.0120.00617.40
7.3.260.0110.01016.49
7.3.250.0090.01016.43
7.3.240.0110.00916.61
7.3.230.0140.00316.58
7.3.210.0100.00716.59
7.3.200.0030.01316.69
7.3.190.0120.00616.59
7.3.180.0070.01016.66
7.3.170.0110.00516.39
7.3.160.0030.01316.64
7.3.120.0090.00614.87
7.3.110.0070.00714.73
7.3.100.0080.00415.18
7.3.90.0080.00414.90
7.3.80.0040.01114.89
7.3.70.0100.00314.86
7.3.60.0090.00314.79
7.3.50.0040.01214.80
7.3.40.0120.00614.60
7.3.30.0110.00014.76
7.3.20.0000.01616.85
7.3.10.0040.01116.92
7.3.00.0030.01316.84
7.2.330.0090.00916.70
7.2.320.0070.01116.60
7.2.310.0080.01316.71
7.2.300.0120.00416.78
7.2.290.0000.01616.82
7.2.240.0040.00815.16
7.2.230.0030.00715.21
7.2.220.0100.00315.17
7.2.210.0080.00515.16
7.2.200.0060.00915.24
7.2.190.0040.01114.93
7.2.180.0090.00614.64
7.2.170.0100.00715.11
7.2.160.0030.01215.28
7.2.150.0150.00317.08
7.2.140.0100.00717.00
7.2.130.0130.00016.89
7.2.120.0070.01017.03
7.2.110.0090.00317.11
7.2.100.0070.01116.82
7.2.90.0070.00716.71
7.2.80.0070.00717.07
7.2.70.0100.00617.08
7.2.60.0550.00915.99
7.2.50.0060.00916.72
7.2.40.0060.00916.93
7.2.30.0070.01017.10
7.2.20.0120.00016.93
7.2.10.0060.01017.11
7.2.00.0030.01018.25
7.1.330.0030.01315.85
7.1.320.0000.01315.63
7.1.310.0000.00915.57
7.1.300.0040.01216.04
7.1.290.0060.00615.63
7.1.280.0040.01116.04
7.1.270.0080.00615.63
7.1.260.0070.00715.84
7.1.250.0000.01515.73
7.1.200.0070.00715.88
7.1.100.0060.00918.22
7.1.70.0290.00915.45
7.1.60.0320.02133.50
7.1.50.0370.01833.01
7.1.40.0450.01432.55
7.1.30.0380.01532.77
7.1.20.0350.01432.71
7.1.10.1050.00614.98
7.1.00.0110.01614.81
7.0.200.0420.01014.72
7.0.190.0230.00714.68
7.0.180.0230.01114.34
7.0.170.0290.00314.43
7.0.160.0250.00814.39
7.0.150.0230.01214.48
7.0.140.0240.00914.52
7.0.130.0220.00614.44
7.0.120.0290.01014.66
7.0.110.0290.00614.44
7.0.100.0240.01114.46
7.0.90.0230.00414.51
7.0.80.0270.00814.53
7.0.70.0190.00814.54
7.0.60.0250.01114.45
7.0.50.0190.01214.56
7.0.40.0200.01314.67
7.0.30.0250.01014.62
7.0.20.0190.00914.63
7.0.10.0150.01514.95
7.0.00.0230.00614.82

preferences:
37.37 ms | 400 KiB | 5 Q