3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 'foo', 'foo', 'bar', 'baz', 'baz' ]; array_walk($arr, function (&$item, $k) use ($arr) { $lower = mb_strtolower($item, 'utf-8'); foreach ($arr as $i => $v) { var_dump($k .'='. $i); if ($i !== $k && $v !== null && $lower === mb_strtolower($v, 'utf-8')) { var_dump('rm'); $item = null; } } }); var_dump($arr);

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)
8.3.60.0190.00316.62
8.3.50.0110.01116.23
8.3.40.0060.00918.71
8.3.30.0040.01118.70
8.3.20.0000.00820.16
8.3.10.0080.00021.74
8.3.00.0050.00319.64
8.2.180.0070.00716.50
8.2.170.0090.00622.96
8.2.160.0060.01018.86
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0050.00319.36
8.2.120.0050.00326.35
8.2.110.0030.00622.09
8.2.100.0060.00617.59
8.2.90.0050.00319.27
8.2.80.0030.00617.97
8.2.70.0030.00617.50
8.2.60.0000.00817.80
8.2.50.0040.00418.10
8.2.40.0050.00320.42
8.2.30.0000.00819.13
8.2.20.0070.00017.98
8.2.10.0000.00718.05
8.2.00.0040.00418.21
8.1.280.0070.00725.92
8.1.270.0040.00422.11
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00623.83
8.1.230.0090.00322.13
8.1.220.0060.00317.74
8.1.210.0030.00618.77
8.1.200.0030.00617.35
8.1.190.0030.00617.23
8.1.180.0000.00818.10
8.1.170.0030.00518.59
8.1.160.0050.00219.02
8.1.150.0000.00819.05
8.1.140.0040.00419.68
8.1.130.0030.00318.96
8.1.120.0030.00517.53
8.1.110.0000.00817.55
8.1.100.0040.00417.50
8.1.90.0040.00417.52
8.1.80.0030.00317.57
8.1.70.0000.00717.42
8.1.60.0000.00817.68
8.1.50.0000.00817.44
8.1.40.0030.00617.58
8.1.30.0030.00617.61
8.1.20.0060.00317.75
8.1.10.0040.00417.64
8.1.00.0050.00217.38
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0000.00718.48
8.0.270.0000.00717.30
8.0.260.0030.00316.79
8.0.250.0000.00817.05
8.0.240.0000.01117.02
8.0.230.0070.00017.01
8.0.220.0070.00016.93
8.0.210.0070.00016.95
8.0.200.0070.00017.05
8.0.190.0070.00316.92
8.0.180.0000.00716.88
8.0.170.0040.00416.96
8.0.160.0000.00716.84
8.0.150.0000.00716.82
8.0.140.0000.00716.92
8.0.130.0030.00313.35
8.0.120.0080.00016.82
8.0.110.0000.00716.80
8.0.100.0040.00416.94
8.0.90.0040.00416.98
8.0.80.0140.00416.83
8.0.70.0000.00716.96
8.0.60.0080.00016.88
8.0.50.0050.00216.80
8.0.30.0090.01117.22
8.0.20.0120.01017.40
8.0.10.0050.00316.96
8.0.00.0130.00616.87
7.4.330.0030.00315.55
7.4.320.0030.00316.68
7.4.300.0000.00616.55
7.4.290.0000.00816.71
7.4.280.0040.00416.57
7.4.270.0000.00816.68
7.4.260.0070.00016.65
7.4.250.0030.00316.57
7.4.240.0030.00516.61
7.4.230.0070.00016.64
7.4.220.0120.00616.68
7.4.210.0070.01016.70
7.4.200.0030.00616.50
7.4.160.0120.00516.54
7.4.150.0160.00317.40
7.4.140.0110.01117.86
7.4.130.0090.01216.63
7.4.120.0160.00916.58
7.4.110.0090.00916.56
7.4.100.0080.01116.54
7.4.90.0070.01016.55
7.4.80.0060.01319.39
7.4.70.0100.01016.62
7.4.60.0030.01616.42
7.4.50.0070.00716.45
7.4.40.0120.00916.52
7.4.30.0090.00816.80
7.4.10.0070.01315.67
7.4.00.0040.01315.35
7.3.330.0030.00313.24
7.3.320.0030.00313.29
7.3.310.0070.00016.32
7.3.300.0030.00316.39
7.3.290.0000.00616.46
7.3.280.0080.01016.39
7.3.270.0260.00617.40
7.3.260.0120.00616.57
7.3.250.0110.01016.36
7.3.240.0100.01016.35
7.3.230.0090.00816.53
7.3.210.0090.00916.25
7.3.200.0190.00316.29
7.3.190.0090.00916.38
7.3.180.0110.00616.29
7.3.170.0160.00816.54
7.3.160.0090.00916.40
7.3.130.0110.00515.58
7.3.120.0060.01215.46
7.3.110.0090.00715.41
7.3.100.0060.01115.38
7.3.90.0060.00715.25
7.3.80.0060.00715.42
7.3.70.0070.00715.38
7.3.60.0070.00915.31
7.3.50.0100.00515.30
7.3.40.0110.00515.22
7.3.30.0050.00815.41
7.3.20.0060.00917.23
7.3.10.0020.01117.27
7.3.00.0060.00817.18
7.2.330.0170.00316.49
7.2.320.0130.00516.68
7.2.310.0070.01016.81
7.2.300.0090.01516.80
7.2.290.0060.01216.80
7.2.260.0080.01115.91
7.2.250.0090.00915.61
7.2.240.0070.01015.68
7.2.230.0060.00915.68
7.2.220.0040.01115.80
7.2.210.0100.00915.57
7.2.200.0060.00815.68
7.2.190.0080.00415.64
7.2.180.0090.00415.65
7.2.170.0010.01215.72
7.2.160.0080.00615.91
7.2.150.0060.00817.73
7.2.140.0100.00517.57
7.2.130.0070.00917.85
7.2.120.0050.01117.78
7.2.110.0040.00917.64
7.2.100.0020.00917.65
7.2.90.0020.01217.64
7.2.80.0030.01317.81
7.2.70.0090.00717.67
7.2.60.0410.00616.99
7.2.50.0090.00617.47
7.2.40.0040.01017.87
7.2.30.0080.00517.74
7.2.20.0100.00417.74
7.2.10.0060.00817.66
7.2.00.0070.00618.31
7.1.330.0090.00516.38
7.1.320.0080.00616.44
7.1.310.0080.00816.56
7.1.300.0060.00916.34
7.1.290.0070.00716.53
7.1.280.0040.00716.30
7.1.270.0030.00916.31
7.1.260.0080.00916.20
7.1.250.0080.00616.64
7.1.240.0040.00916.57
7.1.230.0070.00616.56
7.1.220.0050.00916.64
7.1.210.0060.00616.71
7.1.200.0080.00716.43
7.1.190.0050.01016.72
7.1.180.0020.01316.66
7.1.170.0070.00616.61
7.1.160.0070.00516.57
7.1.150.0040.01016.60
7.1.140.0070.00516.63
7.1.130.0080.00516.67
7.1.120.0030.01116.67
7.1.110.0050.00816.74
7.1.100.0050.00717.21
7.1.90.0050.00616.52
7.1.80.0000.01316.61
7.1.70.0140.00816.07
7.1.60.0180.01422.21
7.1.50.0170.00622.15
7.1.40.0130.01622.05
7.1.30.0130.01221.94
7.1.20.0130.01122.03
7.1.10.0130.00615.97
7.1.00.0110.00615.99
7.0.330.0000.01016.16
7.0.320.0100.00316.24
7.0.310.0090.00616.31
7.0.300.0030.00816.18
7.0.290.0110.00316.31
7.0.280.0030.00716.20
7.0.270.0020.01116.09
7.0.260.0040.00616.11
7.0.250.0050.01016.34
7.0.240.0070.00716.18
7.0.230.0060.00616.30
7.0.220.0090.00516.23
7.0.210.0050.00916.37
7.0.200.0110.01215.88
7.0.190.0060.01115.83
7.0.180.0130.00615.64
7.0.170.0140.00615.74
7.0.160.0090.00915.65
7.0.150.0110.00815.62
7.0.140.0120.01015.70
7.0.130.0090.00815.60
7.0.120.0090.01015.81
7.0.110.0070.01015.69
7.0.100.0130.00315.74
7.0.90.0070.01115.77
7.0.80.0040.01115.62
7.0.70.0070.01015.69
7.0.60.0100.01015.49
7.0.50.0100.01315.66
7.0.40.0060.00814.33
7.0.30.0070.01114.43
7.0.20.0220.00614.31
7.0.10.0100.00914.29
7.0.00.0100.00714.38
5.6.400.0050.00915.28
5.6.390.0100.00415.27
5.6.380.0050.01015.20
5.6.370.0060.00715.03
5.6.360.0040.01014.96
5.6.350.0030.01215.34
5.6.340.0090.00515.24
5.6.330.0050.00915.35
5.6.320.0050.00815.20
5.6.310.0100.00415.09
5.6.300.0050.00515.25
5.6.290.0050.00815.09
5.6.280.0030.00915.29
5.6.270.0070.01015.23
5.6.260.0040.00815.17
5.6.250.0050.00915.14
5.6.240.0030.00715.10
5.6.230.0040.00615.12
5.6.220.0030.01215.20
5.6.210.0050.01115.13
5.6.200.0080.00515.16
5.6.190.0100.00215.03
5.6.180.0050.01014.96
5.6.170.0100.00515.05
5.6.160.0100.00515.02
5.6.150.0090.00515.26
5.6.140.0090.00615.43
5.6.130.0000.01215.14
5.6.120.0040.00715.31
5.6.110.0030.01315.13
5.6.100.0020.01314.96
5.6.90.0080.00914.94
5.6.80.0060.01115.07
5.6.70.0080.00915.04
5.6.60.0110.00415.18
5.6.50.0100.00614.96
5.6.40.0060.00614.92
5.6.30.0060.00815.09
5.6.20.0050.00915.13
5.6.10.0040.00615.09
5.6.00.0050.00915.25

preferences:
59.98 ms | 401 KiB | 5 Q