3v4l.org

run code in 300+ PHP versions simultaneously
<?php function dot($array, $prepend = '') { $results = array(); if (!$array) return $prepend; foreach ($array as $key => $value) { if (is_array($value)) { $results = array_merge($results, dot($value, $prepend.$key.'.')); if ($key === 'foo') print_r($results); } else { $results[$prepend.$key] = $value; } } return $results; } $array = [ 'foo' => [], 'bar' => [ 'baz' => 1 ], ]; print_r(dot($array, 'prefix'));

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)
8.3.60.0120.00318.33
8.3.50.0120.00321.14
8.3.40.0070.00718.76
8.3.30.0100.00319.13
8.3.20.0040.00420.39
8.3.10.0040.00423.53
8.3.00.0040.00419.38
8.2.180.0110.01116.48
8.2.170.0110.00422.96
8.2.160.0140.00020.44
8.2.150.0030.00524.18
8.2.140.0000.00824.66
8.2.130.0050.00226.16
8.2.120.0070.00022.23
8.2.110.0070.00321.04
8.2.100.0060.00617.63
8.2.90.0000.00719.27
8.2.80.0060.00317.97
8.2.70.0060.00317.75
8.2.60.0040.00417.91
8.2.50.0000.00918.07
8.2.40.0000.00818.34
8.2.30.0000.00717.96
8.2.20.0040.00417.72
8.2.10.0000.00718.04
8.2.00.0040.00417.84
8.1.280.0140.00725.92
8.1.270.0040.00423.82
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0060.00323.96
8.1.230.0080.00318.85
8.1.220.0050.00317.78
8.1.210.0000.00918.77
8.1.200.0090.00017.35
8.1.190.0000.00817.22
8.1.180.0000.00818.10
8.1.170.0000.00820.25
8.1.160.0040.00422.02
8.1.150.0070.00018.81
8.1.140.0040.00417.50
8.1.130.0070.00017.75
8.1.120.0000.00717.51
8.1.110.0040.00417.44
8.1.100.0030.00417.40
8.1.90.0040.00417.51
8.1.80.0030.00317.41
8.1.70.0000.00717.46
8.1.60.0000.01217.60
8.1.50.0000.00817.52
8.1.40.0080.00017.55
8.1.30.0060.00317.55
8.1.20.0040.00417.63
8.1.10.0000.00817.48
8.1.00.0060.00317.41
8.0.300.0070.00018.77
8.0.290.0000.00716.75
8.0.280.0030.00318.47
8.0.270.0040.00417.25
8.0.260.0070.00017.28
8.0.250.0030.00317.04
8.0.240.0070.00016.92
8.0.230.0000.00717.00
8.0.220.0050.00216.95
8.0.210.0030.00316.86
8.0.200.0000.00616.99
8.0.190.0000.00717.03
8.0.180.0040.00416.93
8.0.170.0040.00416.88
8.0.160.0000.00716.82
8.0.150.0050.00216.88
8.0.140.0000.00716.96
8.0.130.0000.00513.40
8.0.120.0000.00716.88
8.0.110.0070.00016.85
8.0.100.0040.00417.03
8.0.90.0000.00716.88
8.0.80.0090.01216.91
8.0.70.0040.00316.87
8.0.60.0000.00816.96
8.0.50.0000.00716.79
8.0.30.0070.01317.23
8.0.20.0150.00817.40
8.0.10.0070.00017.12
8.0.00.0120.00916.96
7.4.330.0030.00515.02
7.4.320.0030.00316.59
7.4.300.0000.00616.60
7.4.290.0070.00016.50
7.4.280.0000.00716.50
7.4.270.0000.00716.41
7.4.260.0000.00716.54
7.4.250.0070.00016.54
7.4.240.0020.00516.56
7.4.230.0030.00316.43
7.4.220.0150.00916.67
7.4.210.0090.00616.49
7.4.200.0030.00316.35
7.4.160.0150.00516.60
7.4.150.0080.01117.40
7.4.140.0060.01317.86
7.4.130.0050.01416.64
7.4.120.0130.00516.59
7.4.110.0090.01216.54
7.4.100.0100.00716.64
7.4.90.0050.01416.44
7.4.80.0150.00619.39
7.4.70.0020.02016.45
7.4.60.0060.00916.48
7.4.50.0050.00316.46
7.4.40.0090.01216.32
7.4.30.0070.01016.45
7.4.00.0030.00814.88
7.3.330.0000.00613.43
7.3.320.0020.00213.29
7.3.310.0000.00716.39
7.3.300.0070.00016.44
7.3.290.0060.00816.42
7.3.280.0060.00916.40
7.3.270.0060.01817.40
7.3.260.0040.01316.43
7.3.250.0090.00816.37
7.3.240.0030.01316.41
7.3.230.0070.01416.46
7.3.210.0070.01116.43
7.3.200.0100.00619.39
7.3.190.0150.01116.44
7.3.180.0070.00716.52
7.3.170.0050.01116.44
7.3.160.0040.01416.39
7.3.120.0030.00914.55
7.3.110.0070.00714.77
7.3.100.0000.01515.08
7.3.90.0030.00914.81
7.3.80.0040.00814.66
7.3.70.0030.01314.96
7.3.60.0030.01314.65
7.3.50.0060.00914.81
7.3.40.0080.00414.83
7.3.30.0040.01114.64
7.3.20.0030.01316.41
7.3.10.0050.00816.51
7.3.00.0080.00816.59
7.2.330.0110.00716.71
7.2.320.0100.00516.73
7.2.310.0000.01616.68
7.2.300.0170.00316.70
7.2.290.0060.01816.73
7.2.240.0090.00614.63
7.2.230.0040.00815.23
7.2.220.0000.00915.14
7.2.210.0030.01214.94
7.2.200.0130.00314.85
7.2.190.0050.00614.84
7.2.180.0080.00315.14
7.2.170.0030.00615.08
7.2.160.0040.00815.08
7.2.150.0040.00816.58
7.2.140.0130.00016.77
7.2.130.0020.00916.99
7.2.120.0080.00816.90
7.2.110.0050.00916.94
7.2.100.0070.00716.97
7.2.90.0000.01516.81
7.2.80.0030.01117.04
7.2.70.0090.00216.89
7.2.60.0080.01016.77
7.2.50.0060.00616.88
7.2.40.0070.00716.86
7.2.30.0020.01316.94
7.2.20.0070.00516.93
7.2.10.0090.00516.94
7.2.00.0020.01117.77
7.1.330.0110.00415.93
7.1.320.0050.00315.57
7.1.310.0070.00715.61
7.1.300.0080.00615.79
7.1.290.0040.01115.40
7.1.280.0100.00315.77
7.1.270.0100.00715.73
7.1.260.0070.00715.91
7.1.250.0090.00515.77
7.1.200.0030.01315.85
7.1.100.0080.00618.25
7.1.70.0030.01317.07
7.1.60.0110.01119.32
7.1.50.0090.00916.92
7.1.00.0070.07022.41
7.0.200.0040.00416.64
7.0.140.0030.07322.19
7.0.110.0100.08320.06
7.0.100.0100.04019.92
7.0.90.0130.03719.98
7.0.80.0070.04719.91
7.0.70.0070.04019.89
7.0.60.0200.05720.03
7.0.50.0100.04320.03
7.0.40.0000.04319.86
7.0.30.0100.03719.73
7.0.20.0000.04319.86
7.0.10.0130.05019.77
7.0.00.0070.04019.65
5.6.280.0000.07320.93
5.6.260.0100.06320.89
5.6.250.0070.08320.58
5.6.240.0100.04020.70
5.6.230.0030.04020.57
5.6.220.0030.04020.56
5.6.210.0000.04020.71
5.6.200.0030.04320.67
5.6.190.0000.04720.61
5.6.180.0070.03320.63
5.6.170.0000.04320.67
5.6.160.0070.03320.56
5.6.150.0070.05320.59
5.6.140.0030.04720.66
5.6.130.0030.05720.65
5.6.120.0030.04020.61
5.6.110.0100.03020.54
5.6.100.0070.04320.62
5.6.90.0130.05320.57
5.6.80.0030.03719.95
5.6.70.0030.04019.93
5.6.60.0130.03319.98
5.6.50.0030.03020.02
5.6.40.0100.03020.06
5.6.30.0000.03720.06
5.6.20.0070.08719.97
5.6.10.0100.03720.01
5.6.00.0030.06719.83
5.5.380.0070.04717.69
5.5.370.0030.04017.59
5.5.360.0100.03317.58
5.5.350.0030.04017.59
5.5.340.0030.04018.15
5.5.330.0030.04017.82
5.5.320.0030.04018.25
5.5.310.0000.03718.12
5.5.300.0070.03718.09
5.5.290.0070.03318.23
5.5.280.0000.04318.22
5.5.270.0030.04018.04
5.5.260.0000.04718.05
5.5.250.0030.03717.73
5.5.240.0000.03317.46
5.5.230.0000.04017.29
5.5.220.0030.04017.30
5.5.210.0000.03317.48
5.5.200.0030.03717.59
5.5.190.0000.03717.27
5.5.180.0070.06317.26
5.5.160.0100.02717.27
5.5.150.0030.05017.45
5.5.140.0000.03717.48
5.5.130.0030.03317.45
5.5.120.0000.03717.45
5.5.110.0030.04717.44
5.5.100.0000.07717.51
5.5.90.0170.05317.18
5.5.80.0030.04717.50
5.5.70.0070.07017.17
5.5.60.0030.05017.39
5.5.50.0030.03717.46
5.5.40.0100.07317.47
5.5.30.0030.05717.17
5.5.20.0030.03317.14
5.5.10.0130.03317.46
5.5.00.0130.03317.07
5.4.450.0130.03019.52
5.4.440.0070.04019.51
5.4.430.0030.04019.26
5.4.420.0030.04019.63
5.4.410.0030.03319.38
5.4.400.0070.03019.16
5.4.390.0030.03719.14
5.4.380.0030.03018.95
5.4.370.0070.03719.20
5.4.360.0070.03719.27
5.4.350.0070.02718.95
5.4.340.0070.03018.95
5.4.320.0070.07019.01
5.4.310.0130.06719.33
5.4.300.0070.03718.98
5.4.290.0030.07319.24
5.4.280.0000.06719.23
5.4.270.0070.03719.23
5.4.260.0030.03319.32
5.4.250.0030.05719.09
5.4.240.0100.06319.16
5.4.230.0130.02719.30
5.4.220.0030.03319.08
5.4.210.0030.06019.24
5.4.200.0130.07019.33
5.4.190.0030.07319.33
5.4.180.0030.03319.00
5.4.170.0100.05719.23
5.4.160.0030.04019.15
5.4.150.0100.07319.01
5.4.140.0100.05716.55
5.4.130.0070.07016.54
5.4.120.0130.06716.29
5.4.110.0030.06016.55
5.4.100.0070.06316.50
5.4.90.0100.03016.41
5.4.80.0100.07016.49
5.4.70.0100.05716.49
5.4.60.0070.07016.55
5.4.50.0130.06716.47
5.4.40.0100.07016.68
5.4.30.0070.07316.55
5.4.20.0030.06016.39
5.4.10.0030.07316.23
5.4.00.0070.07315.96
5.3.290.0030.03314.63
5.3.280.0030.07314.57
5.3.270.0100.06014.72
5.3.260.0030.06314.59
5.3.250.0000.03714.62
5.3.240.0100.06714.59
5.3.230.0030.07014.62
5.3.220.0100.06714.57
5.3.210.0000.07714.66
5.3.200.0100.06314.56
5.3.190.0030.08014.59
5.3.180.0070.03014.55
5.3.170.0070.08014.69
5.3.160.0100.06714.57
5.3.150.0070.07714.70
5.3.140.0030.04314.71
5.3.130.0130.05314.43
5.3.120.0070.03714.54
5.3.110.0100.03014.52
5.3.100.0030.03314.09
5.3.90.0030.07014.25
5.3.80.0130.06314.02
5.3.70.0070.06714.05
5.3.60.0030.05014.02
5.3.50.0070.03313.96
5.3.40.0100.02714.04
5.3.30.0030.06714.05
5.3.20.0030.07313.82
5.3.10.0070.07013.88
5.3.00.0030.07313.78
5.2.170.0070.06011.93
5.2.160.0030.06711.93
5.2.150.0000.06711.93
5.2.140.0070.05711.93
5.2.130.0030.06011.93
5.2.120.0070.05711.93
5.2.110.0030.03311.93
5.2.100.0030.02711.93
5.2.90.0070.05311.93
5.2.80.0030.06011.93
5.2.70.0000.03311.93
5.2.60.0000.04711.93
5.2.50.0030.02311.93
5.2.40.0130.05311.93
5.2.30.0070.05011.93
5.2.20.0000.04311.93
5.2.10.0000.03011.93
5.2.00.0100.06311.93
5.1.60.0070.01711.93
5.1.50.0000.03711.93
5.1.40.0030.03011.93
5.1.30.0030.06011.93
5.1.20.0000.03311.93
5.1.10.0130.04711.93
5.1.00.0000.05011.93
5.0.50.0030.04011.93
5.0.40.0000.03011.93
5.0.30.0000.05711.93
5.0.20.0030.03011.93
5.0.10.0070.03711.93
5.0.00.0070.06011.93
4.4.90.0030.03311.93
4.4.80.0030.03311.93
4.4.70.0030.01311.93
4.4.60.0030.01711.93
4.4.50.0030.03311.93
4.4.40.0100.04711.93
4.4.30.0000.01711.93
4.4.20.0000.02711.93
4.4.10.0000.03311.93
4.4.00.0030.05011.93
4.3.110.0030.02311.93
4.3.100.0000.03711.93
4.3.90.0030.03011.93
4.3.80.0100.05011.93
4.3.70.0000.03311.93
4.3.60.0070.02711.93
4.3.50.0000.03711.93
4.3.40.0000.05311.93
4.3.30.0030.03311.93
4.3.20.0030.03311.93
4.3.10.0000.03011.93
4.3.00.0000.01311.93

preferences:
40.78 ms | 401 KiB | 5 Q