3v4l.org

run code in 300+ PHP versions simultaneously
<?php $tree = array ( array('id' => 1), array('id' => 2), array('id' => 3) ); foreach ($tree as &$node) { $node['read'] = $node['id']; } //unset( $node ); foreach ($tree as $key => $node) { $tree[$key]['write'] = $node['id']; } print_r($tree);

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)
8.3.60.0160.00718.31
8.3.50.0120.00722.18
8.3.40.0090.00919.02
8.3.30.0120.00318.90
8.3.20.0000.00720.34
8.3.10.0080.00023.61
8.3.00.0070.00018.95
8.2.180.0070.00718.55
8.2.170.0060.00922.96
8.2.160.0030.01722.20
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0000.00726.16
8.2.120.0030.00521.06
8.2.110.0060.00321.97
8.2.100.0110.00017.78
8.2.90.0040.00419.15
8.2.80.0050.00317.97
8.2.70.0030.00517.63
8.2.60.0000.00817.93
8.2.50.0000.00918.07
8.2.40.0030.00618.15
8.2.30.0040.00418.18
8.2.20.0000.00717.76
8.2.10.0040.00418.19
8.2.00.0080.00017.79
8.1.280.0070.00725.92
8.1.270.0080.00019.06
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0040.00423.92
8.1.230.0110.00019.10
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0040.00417.36
8.1.190.0000.00917.23
8.1.180.0030.00518.10
8.1.170.0030.00618.61
8.1.160.0000.00721.93
8.1.150.0000.00718.94
8.1.140.0060.00319.18
8.1.130.0040.00417.76
8.1.120.0000.00717.46
8.1.110.0080.00017.34
8.1.100.0030.00317.36
8.1.90.0000.00817.47
8.1.80.0000.00717.39
8.1.70.0020.00417.48
8.1.60.0000.00817.57
8.1.50.0030.00617.42
8.1.40.0070.00017.39
8.1.30.0000.00917.55
8.1.20.0000.01017.54
8.1.10.0040.00417.41
8.1.00.0000.00717.29
8.0.300.0030.00518.77
8.0.290.0040.00416.75
8.0.280.0040.00418.41
8.0.270.0040.00417.25
8.0.260.0000.00617.25
8.0.250.0030.00516.82
8.0.240.0000.00816.96
8.0.230.0040.00416.91
8.0.220.0070.00016.86
8.0.210.0000.00716.93
8.0.200.0030.00316.88
8.0.190.0060.00316.95
8.0.180.0000.00716.97
8.0.170.0050.00216.87
8.0.160.0000.00716.96
8.0.150.0070.00016.77
8.0.140.0040.00416.90
8.0.130.0000.00613.32
8.0.120.0040.00416.86
8.0.110.0040.00416.89
8.0.100.0000.00716.79
8.0.90.0000.00816.84
8.0.80.0100.01016.84
8.0.70.0030.00516.72
8.0.60.0000.00716.96
8.0.50.0030.00516.87
8.0.30.0130.00916.96
8.0.20.0110.01217.40
8.0.10.0080.00016.81
8.0.00.0110.00916.77
7.4.330.0000.00515.07
7.4.320.0040.00416.61
7.4.300.0030.00316.59
7.4.290.0060.00016.52
7.4.280.0020.00516.58
7.4.270.0000.00716.61
7.4.260.0110.00016.61
7.4.250.0040.00416.38
7.4.240.0030.00416.53
7.4.230.0030.00316.51
7.4.220.0110.00916.65
7.4.210.0110.00716.57
7.4.200.0050.00316.70
7.4.160.0120.00316.46
7.4.150.0110.00717.40
7.4.140.0070.01117.86
7.4.130.0080.00916.46
7.4.120.0110.00516.56
7.4.110.0120.00416.40
7.4.100.0150.00316.48
7.4.90.0030.01416.45
7.4.80.0040.01819.39
7.4.70.0030.01516.38
7.4.60.0070.01016.56
7.4.50.0000.00516.55
7.4.40.0140.00716.34
7.4.30.0110.01116.40
7.4.00.0050.00915.00
7.3.330.0030.00313.17
7.3.320.0040.00413.21
7.3.310.0000.00716.37
7.3.300.0070.00016.29
7.3.290.0120.00616.33
7.3.280.0070.01416.33
7.3.270.0070.01017.40
7.3.260.0070.01316.55
7.3.250.0100.00716.37
7.3.240.0120.00316.53
7.3.230.0090.00816.50
7.3.210.0100.01016.42
7.3.200.0110.00919.39
7.3.190.0160.00616.45
7.3.180.0120.00616.37
7.3.170.0110.00916.33
7.3.160.0090.00616.28
7.3.120.0100.00514.68
7.3.110.0090.00814.68
7.3.100.0110.00514.72
7.3.90.0050.00514.69
7.3.80.0070.00514.72
7.3.70.0060.00814.85
7.3.60.0090.00414.83
7.3.50.0060.00814.76
7.3.40.0060.00714.88
7.3.30.0110.00314.68
7.3.20.0080.00616.57
7.3.10.0070.00516.81
7.3.00.0090.00516.80
7.2.330.0120.00816.66
7.2.320.0030.01416.74
7.2.310.0090.00816.39
7.2.300.0120.00616.66
7.2.290.0100.01116.44
7.2.250.0080.00815.08
7.2.240.0030.01415.05
7.2.230.0070.00714.89
7.2.220.0030.01115.20
7.2.210.0060.00615.02
7.2.200.0040.00615.11
7.2.190.0020.01215.08
7.2.180.0050.00914.90
7.2.170.0070.00415.08
7.2.160.0040.00714.98
7.2.150.0070.01417.10
7.2.140.0130.00716.93
7.2.130.0110.00516.80
7.2.120.0060.00816.85
7.2.110.0070.00716.89
7.2.100.0060.00816.96
7.2.90.0070.00916.95
7.2.80.0070.00516.88
7.2.70.0080.01017.00
7.2.60.0020.01416.83
7.2.50.0080.00616.85
7.2.40.0050.00916.96
7.2.30.0040.01016.76
7.2.20.0060.01116.94
7.2.10.0090.00716.98
7.2.00.0090.00517.74
7.1.330.0060.00715.78
7.1.320.0080.00815.86
7.1.310.0050.00515.80
7.1.300.0110.00515.95
7.1.290.0070.00515.88
7.1.280.0020.00915.77
7.1.270.0050.00815.72
7.1.260.0040.00715.67
7.1.250.0080.00615.93
7.1.240.0080.00516.00
7.1.230.0070.01015.82
7.1.220.0080.00415.91
7.1.210.0050.01015.72
7.1.200.0000.01415.90
7.1.190.0090.00915.47
7.1.180.0040.00815.70
7.1.170.0080.00515.71
7.1.160.0090.00615.70
7.1.150.0100.00315.93
7.1.140.0070.00715.68
7.1.130.0070.00715.77
7.1.120.0040.01115.58
7.1.110.0060.01015.82
7.1.100.0050.00617.08
7.1.90.0060.00915.84
7.1.80.0070.00715.79
7.1.70.0020.00816.56
7.1.60.0100.01017.57
7.1.50.0050.01216.28
7.1.40.0030.01015.86
7.1.30.0070.00715.77
7.1.20.0030.00615.77
7.1.10.0040.00415.79
7.1.00.0000.04319.08
7.0.330.0030.00915.56
7.0.320.0040.01215.25
7.0.310.0060.00615.53
7.0.300.0060.00315.64
7.0.290.0070.01015.08
7.0.280.0080.00415.32
7.0.270.0070.00715.56
7.0.260.0090.00315.54
7.0.250.0100.00715.50
7.0.240.0060.01015.31
7.0.230.0090.00015.53
7.0.220.0070.00315.54
7.0.210.0000.01415.34
7.0.200.0050.00716.13
7.0.190.0070.01015.61
7.0.180.0070.00715.58
7.0.170.0040.00815.53
7.0.160.0120.00315.38
7.0.150.0000.01515.50
7.0.140.0070.02718.76
7.0.130.0040.01415.37
7.0.120.0050.01215.39
7.0.110.0090.00915.28
7.0.100.0050.01315.49
7.0.90.0070.01115.42
7.0.80.0040.01415.32
7.0.70.0140.00015.25
7.0.60.0060.03417.71
7.0.50.0090.02016.65
7.0.40.0070.04816.80
7.0.30.0320.04316.78
7.0.20.0070.02516.74
7.0.10.0050.04916.81
7.0.00.0070.04316.72
5.6.400.0090.00914.71
5.6.390.0090.00314.16
5.6.380.0000.01714.34
5.6.370.0030.01014.18
5.6.360.0070.00714.08
5.6.350.0030.01214.43
5.6.340.0090.00614.63
5.6.330.0000.01514.29
5.6.320.0070.00714.31
5.6.310.0110.00014.80
5.6.300.0040.00714.05
5.6.290.0070.01014.37
5.6.280.0060.04017.74
5.6.270.0070.01414.48
5.6.260.0040.01514.33
5.6.250.0030.01214.34
5.6.240.0110.00714.35
5.6.230.0000.01814.54
5.6.220.0080.00814.25
5.6.210.0110.01817.48
5.6.200.0050.02816.22
5.6.190.0130.04317.60
5.6.180.0220.04617.49
5.6.170.0160.01917.50
5.6.160.0080.03817.54
5.6.150.0090.02016.35
5.6.140.0060.02216.29
5.6.130.0120.04216.45
5.6.120.0060.04317.69
5.6.110.0060.04517.89
5.6.100.0110.03517.72
5.6.90.0050.02217.78
5.6.80.0080.04217.34
5.6.70.0050.04617.30
5.6.60.0030.01414.48
5.6.50.0000.01114.27
5.6.40.0000.01114.14
5.6.30.0040.01114.18
5.6.20.0000.01514.07
5.6.10.0080.00514.69
5.6.00.0070.00714.55
5.5.380.0040.00714.36
5.5.370.0070.01114.47
5.5.360.0030.01014.41
5.5.350.0080.03517.42
5.5.340.0070.02716.01
5.5.330.0090.02117.39
5.5.320.0050.02417.42
5.5.310.0150.02517.29
5.5.300.0120.03716.12
5.5.290.0020.02516.12
5.5.280.0050.02117.42
5.5.270.0100.03617.56
5.5.260.0100.04217.56
5.5.250.0060.02417.32
5.5.240.0120.04517.34
5.5.230.0110.00614.25
5.5.220.0080.00614.40
5.5.210.0030.01014.26
5.5.200.0030.00914.50
5.5.190.0070.01014.04
5.5.180.0030.00614.42
5.5.170.0000.00914.12
5.5.160.0040.00714.18
5.5.150.0030.00914.22
5.5.140.0060.00914.12
5.5.130.0060.00614.63
5.5.120.0040.00714.38
5.5.110.0030.00613.93
5.5.100.0100.00614.34
5.5.90.0030.01614.42
5.5.80.0100.00614.21
5.5.70.0070.00714.11
5.5.60.0000.01214.46
5.5.50.0000.01414.04
5.5.40.0070.00914.30
5.5.30.0070.00714.23
5.5.20.0030.01314.43
5.5.10.0040.01114.39
5.5.00.0000.01614.27
5.4.450.0430.04015.87
5.4.440.0320.03616.04
5.4.430.0050.03215.99
5.4.420.0420.02815.91
5.4.410.0300.03215.84
5.4.400.0380.02915.82
5.4.390.0170.02415.57
5.4.380.0080.03415.65
5.4.370.0140.03015.52
5.4.360.0080.03115.56
5.4.350.0070.03615.69
5.4.340.0150.03315.52
5.4.330.0030.01012.54
5.4.320.0150.03015.65
5.4.310.0170.02815.64
5.4.300.0180.02715.56
5.4.290.0200.02015.66
5.4.280.0120.03015.54
5.4.270.0070.03715.62
5.4.260.0150.03015.54
5.4.250.0160.03315.64
5.4.240.0190.03315.65
5.4.230.0180.02715.66
5.4.220.0130.03015.57
5.4.210.0200.02515.55
5.4.200.0150.02814.54
5.4.190.0100.03315.63
5.4.180.0130.03115.61
5.4.170.0070.04015.58
5.4.160.0130.02915.50
5.4.150.0120.03315.48
5.4.140.0160.02414.42
5.4.130.0100.02914.36
5.4.120.0120.02814.49
5.4.110.0080.03914.47
5.4.100.0170.02314.38
5.4.90.0120.03514.49
5.4.80.0140.02814.36
5.4.70.0120.03014.41
5.4.60.0120.03214.42
5.4.50.0150.03214.40
5.4.40.0160.03014.47
5.4.30.0150.02514.40
5.4.20.0100.03214.46
5.4.10.0170.03014.35
5.4.00.0170.02514.17
5.3.290.0330.04714.86
5.3.280.0300.06014.61
5.3.270.0270.05014.70
5.3.260.0230.06714.65
5.3.250.0170.05714.80
5.3.240.0200.05314.82
5.3.230.0200.05314.79
5.3.220.0330.04714.56
5.3.210.0400.04014.74
5.3.200.0230.06314.62
5.3.190.0270.04714.72
5.3.180.0200.05714.72
5.3.170.0300.04314.78
5.3.160.0230.05014.61
5.3.150.0370.04014.68
5.3.140.0370.03714.56
5.3.130.0200.05714.58
5.3.120.0270.04714.53
5.3.110.0300.05314.54
5.3.100.0230.05714.05
5.3.90.0370.04314.01
5.3.80.0130.06314.04
5.3.70.0230.05014.03
5.3.60.0230.07314.20
5.3.50.0270.06314.10
5.3.40.0270.06013.98
5.3.30.0200.05713.95
5.3.20.0130.06013.93
5.3.10.0170.06313.65
5.3.00.0200.05013.75
5.2.170.0130.04711.21
5.2.160.0200.04011.21
5.2.150.0130.04711.34
5.2.140.0130.05311.16
5.2.130.0130.04711.14
5.2.120.0170.04011.09
5.2.110.0130.04311.13
5.2.100.0200.03711.17
5.2.90.0170.04311.21
5.2.80.0230.03711.19
5.2.70.0170.04311.22
5.2.60.0130.04711.08
5.2.50.0130.04711.09
5.2.40.0170.04011.01
5.2.30.0130.04311.04
5.2.20.0130.04010.98
5.2.10.0170.04010.84
5.2.00.0130.04010.75
5.1.60.0100.03710.03
5.1.50.0170.03310.19
5.1.40.0170.03310.04
5.1.30.0230.02710.43
5.1.20.0230.02710.40
5.1.10.0200.03310.19
5.1.00.0230.02710.14
5.0.50.0130.0278.61
5.0.40.0000.0338.48
5.0.30.0100.0408.33
5.0.20.0000.0338.23
5.0.10.0030.0338.36
5.0.00.0030.0478.20
4.4.90.0000.0277.05
4.4.80.0100.0177.05
4.4.70.0030.0277.05
4.4.60.0070.0237.05
4.4.50.0130.0177.05
4.4.40.0070.0377.05
4.4.30.0100.0277.05
4.4.20.0100.0277.05
4.4.10.0070.0307.05
4.4.00.0070.0377.05
4.3.110.0100.0207.05
4.3.100.0070.0277.05
4.3.90.0070.0207.05
4.3.80.0030.0377.05
4.3.70.0070.0207.05
4.3.60.0030.0237.05
4.3.50.0030.0277.05
4.3.40.0070.0337.05
4.3.30.0070.0237.05
4.3.20.0100.0177.05
4.3.10.0030.0277.05
4.3.00.0130.0237.98

preferences:
53.97 ms | 401 KiB | 5 Q