3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 'foo', 'foo', 'bar', 'baz', 'baz' ]; $arrRes = []; $arrLower = []; foreach ($arr as $v) { $lower = mb_strtolower($v, 'utf-8'); foreach ($arrLower as $lower2) { if ($lower === $lower2) { continue 2; } } $arrRes[] = $v; $arrLower[] = $lower; } var_dump($arr2);

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)
8.3.60.0090.00616.88
8.3.50.0030.01216.63
8.3.40.0110.00418.92
8.3.30.0150.00018.76
8.3.20.0040.00420.25
8.3.10.0040.00421.58
8.3.00.0040.00419.68
8.2.180.0110.01118.29
8.2.170.0120.00922.96
8.2.160.0070.01119.02
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0040.00419.31
8.2.120.0040.00426.35
8.2.110.0100.00022.24
8.2.100.0090.00317.84
8.2.90.0080.00019.18
8.2.80.0030.00618.16
8.2.70.0030.00617.75
8.2.60.0000.00817.93
8.2.50.0030.00618.10
8.2.40.0040.00420.50
8.2.30.0070.00021.00
8.2.20.0070.00018.02
8.2.10.0000.00818.03
8.2.00.0000.00718.02
8.1.280.0150.00025.92
8.1.270.0070.00022.14
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0030.00623.96
8.1.230.0110.00022.17
8.1.220.0070.00017.88
8.1.210.0040.00418.77
8.1.200.0060.00317.35
8.1.190.0060.00317.23
8.1.180.0000.00818.10
8.1.170.0000.00718.69
8.1.160.0000.00718.97
8.1.150.0000.00719.00
8.1.140.0000.00819.70
8.1.130.0050.00218.84
8.1.120.0000.00717.50
8.1.110.0030.00617.51
8.1.100.0000.00717.43
8.1.90.0000.00817.43
8.1.80.0000.00717.45
8.1.70.0030.00517.51
8.1.60.0050.00317.59
8.1.50.0030.00517.55
8.1.40.0040.00417.44
8.1.30.0080.00017.71
8.1.20.0020.00517.68
8.1.10.0070.00017.58
8.1.00.0000.00717.38
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0030.00318.51
8.0.270.0030.00317.31
8.0.260.0030.00316.91
8.0.250.0000.00717.05
8.0.240.0080.00016.97
8.0.230.0040.00417.07
8.0.220.0000.00816.98
8.0.210.0030.00316.97
8.0.200.0040.00417.08
8.0.190.0040.00717.04
8.0.180.0040.00417.05
8.0.170.0000.00716.94
8.0.160.0030.00517.00
8.0.150.0030.00516.97
8.0.140.0040.00416.92
8.0.130.0050.00413.47
8.0.120.0000.00716.90
8.0.110.0000.00716.96
8.0.100.0000.00817.01
8.0.90.0000.00716.89
8.0.80.0130.01016.96
8.0.70.0080.00017.01
8.0.60.0040.00416.89
8.0.50.0070.00016.90
8.0.30.0110.01017.11
8.0.20.0100.01017.40
8.0.10.0000.00817.05
8.0.00.0100.00716.69
7.4.330.0020.00215.55
7.4.320.0030.00316.52
7.4.300.0060.00016.64
7.4.290.0040.00316.65
7.4.280.0080.00016.59
7.4.270.0040.00416.52
7.4.260.0090.00016.60
7.4.250.0000.00716.55
7.4.240.0080.00016.66
7.4.230.0070.00016.47
7.4.220.0140.00416.71
7.4.210.0090.00916.65
7.4.200.0030.00316.68
7.4.160.0070.00916.55
7.4.150.0080.01217.40
7.4.140.0070.01017.86
7.4.130.0100.01016.50
7.4.120.0120.00516.51
7.4.110.0060.02016.61
7.4.100.0090.02316.52
7.4.90.0030.01416.50
7.4.80.0070.01019.39
7.4.70.0120.00616.76
7.4.60.0090.00616.61
7.4.50.0040.01416.40
7.4.40.0100.00716.55
7.4.30.0150.00316.47
7.4.10.0060.01015.02
7.4.00.0080.00915.13
7.3.330.0030.00313.20
7.3.320.0030.00313.36
7.3.310.0000.00716.48
7.3.300.0040.00416.47
7.3.290.0000.00816.44
7.3.280.0090.00916.42
7.3.270.0090.00917.40
7.3.260.0100.00816.49
7.3.250.0080.01016.35
7.3.240.0090.00916.40
7.3.230.0070.01116.46
7.3.210.0060.01016.57
7.3.200.0070.01016.29
7.3.190.0110.00816.71
7.3.180.0100.00716.42
7.3.170.0030.01316.43
7.3.160.0060.00916.49
7.3.130.0070.01114.57
7.3.120.0080.00614.71
7.3.110.0060.01014.82
7.3.100.0060.00914.61
7.3.90.0060.01014.67
7.3.80.0080.00814.88
7.3.70.0040.00714.76
7.3.60.0100.00314.89
7.3.50.0000.01114.88
7.3.40.0040.00714.82
7.3.30.0070.01014.91
7.3.20.0070.01016.72
7.3.10.0040.00716.68
7.3.00.0100.00316.15
7.2.330.0160.00316.73
7.2.320.0110.01116.64
7.2.310.0090.00616.59
7.2.300.0130.00416.55
7.2.290.0130.00716.52
7.2.260.0070.01115.20
7.2.250.0060.00614.90
7.2.240.0070.01114.90
7.2.230.0030.01015.18
7.2.220.0030.01314.80
7.2.210.0000.00915.07
7.2.200.0030.01314.78
7.2.190.0100.00314.91
7.2.180.0040.01114.91
7.2.170.0110.00614.96
7.2.160.0110.00714.86
7.2.150.0100.00316.95
7.2.140.0060.00817.18
7.2.130.0060.01116.99
7.2.120.0070.00416.67
7.2.110.0090.00317.15
7.2.100.0070.01016.61
7.2.90.0080.00816.79
7.2.80.0000.01416.58
7.2.70.0060.00616.92
7.2.60.0480.00615.98
7.2.50.0030.01316.93
7.2.40.0070.01116.77
7.2.30.0060.00317.09
7.2.20.0000.01417.13
7.2.10.0070.01116.64
7.2.00.0030.00918.19
7.1.330.0030.01215.99
7.1.320.0120.00315.91
7.1.310.0090.00615.88
7.1.300.0030.00615.94
7.1.290.0100.00415.86
7.1.280.0070.01015.75
7.1.270.0030.01015.88
7.1.260.0070.00715.89
7.1.250.0040.01115.82
7.1.240.0040.00716.05
7.1.230.0000.01815.64
7.1.220.0060.00615.75
7.1.210.0000.01216.01
7.1.200.0030.01015.71
7.1.190.0060.00915.82
7.1.180.0070.01015.84
7.1.170.0060.00615.69
7.1.160.0070.00715.88
7.1.150.0070.00715.66
7.1.140.0000.01415.88
7.1.130.0100.00715.56
7.1.120.0040.01115.78
7.1.110.0060.00315.99
7.1.100.0050.00616.87
7.1.90.0070.00715.94
7.1.80.0070.00715.58
7.1.70.0170.00915.67
7.1.60.0190.01624.39
7.1.50.0240.01124.40
7.1.40.0250.01124.33
7.1.30.0220.01024.33
7.1.20.0280.01124.24
7.1.10.0120.00515.40
7.1.00.0130.01115.33
7.0.330.0070.01015.50
7.0.320.0030.00715.56
7.0.310.0110.00415.45
7.0.300.0040.01115.46
7.0.290.0040.00415.46
7.0.280.0090.00315.45
7.0.270.0130.00315.37
7.0.260.0070.00715.18
7.0.250.0060.00915.27
7.0.240.0000.01315.46
7.0.230.0120.00315.54
7.0.220.0030.01015.47
7.0.210.0030.00615.18
7.0.200.0120.00915.27
7.0.190.0070.01015.12
7.0.180.0170.01214.92
7.0.170.0130.00814.97
7.0.160.0170.00915.02
7.0.150.0170.00714.97
7.0.140.0100.00814.90
7.0.130.0180.00615.07
7.0.120.0190.00414.90
7.0.110.0200.00415.08
7.0.100.0370.01214.92
7.0.90.0140.00815.02
7.0.80.0140.00915.07
7.0.70.0080.00914.92
7.0.60.0110.01314.96
7.0.50.0160.00715.08
7.0.40.0150.01114.24
7.0.30.0170.00514.04
7.0.20.0100.01013.88
7.0.10.0120.01014.05
7.0.00.0130.01114.12
5.6.400.0100.00314.52
5.6.390.0070.00714.45
5.6.380.0090.00013.96
5.6.370.0060.00614.59
5.6.360.0000.01114.47
5.6.350.0040.00714.45
5.6.340.0090.00614.03
5.6.330.0100.00714.36
5.6.320.0100.00614.17
5.6.310.0110.00414.69
5.6.300.0090.00014.13
5.6.290.0080.00414.50
5.6.280.0040.01214.38
5.6.270.0070.01014.17
5.6.260.0100.00314.60
5.6.250.0000.01414.57
5.6.240.0090.00314.77
5.6.230.0070.00314.66
5.6.220.0030.01114.57
5.6.210.0000.01514.40
5.6.200.0030.00614.43
5.6.190.0040.00814.34
5.6.180.0060.00914.27
5.6.170.0040.00814.23
5.6.160.0070.00714.23
5.6.150.0040.00814.18
5.6.140.0080.00814.44
5.6.130.0110.00414.30
5.6.120.0030.01014.15
5.6.110.0030.01014.57
5.6.100.0070.00314.54
5.6.90.0120.00314.27
5.6.80.0040.00814.61
5.6.70.0120.00314.09
5.6.60.0030.00714.30
5.6.50.0070.00714.53
5.6.40.0130.00014.29
5.6.30.0040.00814.13
5.6.20.0070.01014.63
5.6.10.0060.00614.29
5.6.00.0000.01714.39

preferences:
37.3 ms | 401 KiB | 5 Q