3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = json_encode(array('sleep' => 123)); $b = json_encode(array('sleep' => 987)); $logs = array(array('date' => '2014-01-01', 'data' => $a), array('date' => '2015-01-01', 'data' => $b)); $result = array_reduce($logs, function ($cur, $x) { var_dump($x); //$cur[$x] = $x; return $cur; }, array()); var_dump($result);

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)
8.3.60.0130.00618.52
8.3.50.0130.00321.99
8.3.40.0100.01018.84
8.3.30.0090.00919.27
8.3.20.0020.00520.30
8.3.10.0030.00521.92
8.3.00.0000.00820.75
8.2.180.0090.00916.63
8.2.170.0100.00322.96
8.2.160.0140.00019.16
8.2.150.0060.00324.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0080.00019.36
8.2.110.0060.01322.11
8.2.100.0120.00017.84
8.2.90.0040.00419.22
8.2.80.0050.00317.97
8.2.70.0040.00417.75
8.2.60.0040.00417.93
8.2.50.0000.00818.10
8.2.40.0000.00720.63
8.2.30.0000.00718.00
8.2.20.0070.00017.72
8.2.10.0000.00817.65
8.2.00.0050.00317.69
8.1.280.0150.00325.92
8.1.270.0080.00022.14
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00923.79
8.1.230.0070.00317.70
8.1.220.0080.00017.74
8.1.210.0050.00518.77
8.1.200.0040.00717.35
8.1.190.0050.00317.35
8.1.180.0060.00318.10
8.1.170.0000.00918.46
8.1.160.0000.00722.05
8.1.150.0070.00018.64
8.1.140.0030.00617.45
8.1.130.0000.00717.73
8.1.120.0030.00317.38
8.1.110.0060.00317.34
8.1.100.0070.00017.41
8.1.90.0040.00417.49
8.1.80.0030.00317.46
8.1.70.0040.00417.47
8.1.60.0050.00317.58
8.1.50.0060.00317.56
8.1.40.0040.00417.55
8.1.30.0040.00417.67
8.1.20.0090.00017.67
8.1.10.0000.00717.55
8.1.00.0050.00217.47
8.0.300.0060.00318.77
8.0.290.0040.00416.75
8.0.280.0040.00418.45
8.0.270.0000.00717.21
8.0.260.0000.00716.75
8.0.250.0030.00317.02
8.0.240.0000.00716.97
8.0.230.0070.00016.95
8.0.220.0030.00316.80
8.0.210.0030.00416.87
8.0.200.0000.00616.95
8.0.190.0070.00016.93
8.0.180.0030.00316.93
8.0.170.0030.00516.89
8.0.160.0030.00516.91
8.0.150.0080.00016.72
8.0.140.0000.00816.84
8.0.130.0000.00513.29
8.0.120.0000.00816.85
8.0.110.0040.00416.93
8.0.100.0040.00416.89
8.0.90.0050.00216.92
8.0.80.0130.00316.77
8.0.70.0000.00716.79
8.0.60.0040.00416.74
8.0.50.0000.00716.95
8.0.30.0070.01417.10
8.0.20.0110.00617.41
8.0.10.0040.00416.99
8.0.00.0150.00316.65
7.4.330.0000.00515.00
7.4.320.0000.00716.59
7.4.300.0040.00416.62
7.4.290.0030.00316.59
7.4.280.0000.00716.60
7.4.270.0000.00716.58
7.4.260.0030.00616.54
7.4.250.0050.00316.57
7.4.240.0010.00616.54
7.4.230.0030.00316.62
7.4.220.0150.00916.61
7.4.210.0070.00716.57
7.4.200.0030.00316.63
7.4.190.0000.00716.48
7.4.160.0100.01316.64
7.4.150.0090.00917.40
7.4.140.0110.00917.86
7.4.130.0050.01616.49
7.4.120.0090.01016.62
7.4.110.0110.01116.62
7.4.100.0130.00316.60
7.4.90.0140.00416.32
7.4.80.0030.01419.39
7.4.70.0100.00716.56
7.4.60.0110.00716.38
7.4.50.0000.00816.42
7.4.40.0090.00622.77
7.4.30.0100.00716.62
7.4.00.0060.01215.09
7.3.330.0000.00513.25
7.3.320.0020.00513.18
7.3.310.0000.00716.16
7.3.300.0030.00316.20
7.3.290.0100.00716.36
7.3.280.0110.00416.23
7.3.270.0030.01317.40
7.3.260.0040.01416.58
7.3.250.0120.00616.44
7.3.240.0080.01116.38
7.3.230.0090.00916.39
7.3.210.0030.01416.30
7.3.200.0150.00619.39
7.3.190.0090.01316.36
7.3.180.0100.00716.48
7.3.170.0090.01216.37
7.3.160.0080.00816.42
7.3.120.0060.00914.82
7.2.330.0120.00616.55
7.2.320.0080.01216.63
7.2.310.0000.02216.60
7.2.300.0100.00716.54
7.2.290.0100.00916.63
7.1.70.0030.00516.96
7.1.60.0120.01219.82
7.1.50.0100.01016.72
7.1.00.0100.06722.40
7.0.200.0050.00216.70
7.0.140.0030.07022.18
7.0.90.0700.08019.93
7.0.80.0470.04019.98
7.0.70.0600.08319.89
7.0.60.0530.08020.07
7.0.50.0600.07720.36
7.0.40.0130.07320.07
7.0.30.0030.05720.05
7.0.20.0100.07320.15
7.0.10.0070.07020.07
7.0.00.0030.08720.12
5.6.280.0030.07020.96
5.6.240.0030.08020.68
5.6.230.0100.07320.75
5.6.220.0070.04320.48
5.6.210.0130.05020.64
5.6.200.0100.08321.03
5.6.190.0130.08321.02
5.6.180.0030.08321.05
5.6.170.0000.05021.14
5.6.160.0100.07721.05
5.6.150.0100.07721.02
5.6.140.0030.05320.95
5.6.130.0230.06721.06
5.6.120.0030.08321.00
5.6.110.0030.05320.93
5.6.100.0130.08320.93
5.6.90.0100.08321.08
5.6.80.0070.08020.47
5.6.70.0070.05720.49
5.6.60.0030.08320.41
5.6.50.0100.08020.40
5.6.40.0200.04020.50
5.6.30.0170.07320.37
5.6.20.0070.07320.41
5.6.10.0100.08020.38
5.6.00.0100.07720.36
5.5.380.0130.03020.42
5.5.370.0100.08020.37
5.5.360.0070.07720.39
5.5.350.0030.05020.34
5.5.340.0030.05720.81
5.5.330.0070.05720.90
5.5.320.0070.07720.84
5.5.310.0100.04020.89
5.5.300.0070.07020.78
5.5.290.0030.08320.93
5.5.280.0130.08020.80
5.5.270.0030.05020.77
5.5.260.0100.08020.78
5.5.250.0030.08720.73
5.5.240.0100.07720.30
5.5.230.0170.03320.28
5.5.220.0000.08020.26
5.5.210.0070.08720.18
5.5.200.0070.05020.24
5.5.190.0030.06020.15
5.5.180.0200.07020.24
5.5.160.0070.07720.13
5.5.150.0100.07020.28
5.5.140.0130.07720.25
5.5.130.0070.04719.98
5.5.120.0070.07720.21
5.5.110.0070.08020.24
5.5.100.0100.03720.16
5.5.90.0030.07720.15
5.5.80.0070.07020.06
5.5.70.0030.05319.95
5.5.60.0070.07020.00
5.5.50.0100.05720.11
5.5.40.0030.05320.05
5.5.30.0100.08020.15
5.5.20.0030.07319.94
5.5.10.0070.07320.11
5.5.00.0070.07720.04
5.4.450.0130.07319.45
5.4.440.0070.06319.51
5.4.430.0070.07319.50
5.4.420.0070.05019.31
5.4.410.0130.05719.32
5.4.400.0030.06719.14
5.4.390.0000.08319.13
5.4.380.0130.06018.91
5.4.370.0100.07319.09
5.4.360.0100.06719.14
5.4.350.0070.07019.18
5.4.340.0130.07019.23
5.4.320.0170.06018.90
5.4.310.0100.03718.88
5.4.300.0200.06019.13
5.4.290.0070.07019.18
5.4.280.0030.04019.03
5.4.270.0170.05719.09
5.4.260.0100.07318.90
5.4.250.0070.07019.12
5.4.240.0030.05318.89
5.4.230.0100.07019.12
5.4.220.0130.07018.94
5.4.210.0030.05019.10
5.4.200.0030.07719.13
5.4.190.0100.06319.03
5.4.180.0000.07719.07
5.4.170.0100.07719.20
5.4.160.0000.08018.85
5.4.150.0100.07318.85
5.4.140.0100.06716.29
5.4.130.0070.07016.14
5.4.120.0070.05016.37
5.4.110.0000.07716.41
5.4.100.0170.05016.48
5.4.90.0100.06716.44
5.4.80.0070.06316.48
5.4.70.0130.05316.27
5.4.60.0000.04316.32
5.4.50.0100.06716.30
5.4.40.0100.07016.30
5.4.30.0000.05316.30
5.4.20.0070.06316.33
5.4.10.0070.05716.40
5.4.00.0030.04315.84
5.3.290.0070.04314.61
5.3.280.0070.05314.52
5.3.270.0030.07314.63
5.3.260.0100.06014.69
5.3.250.0030.06314.53
5.3.240.0000.08314.61
5.3.230.0170.07014.55
5.3.220.0070.04714.55
5.3.210.0000.05014.60
5.3.200.0030.07714.63
5.3.190.0070.04314.66
5.3.180.0070.07314.65
5.3.170.0200.06314.53
5.3.160.0100.06714.49
5.3.150.0100.06314.68
5.3.140.0000.05014.63
5.3.130.0100.06714.66
5.3.120.0030.05014.61
5.3.110.0030.08014.61
5.3.100.0070.07714.09
5.3.90.0130.06714.13
5.3.80.0100.07314.00
5.3.70.0100.05014.08
5.3.60.0030.04314.03
5.3.50.0070.07714.00
5.3.40.0130.07013.87
5.3.30.0100.06313.92
5.3.20.0070.07013.71
5.3.10.0030.07013.70
5.3.00.0130.06313.70
5.2.170.0100.06010.96
5.2.160.0130.05711.14
5.2.150.0030.06310.99
5.2.140.0170.02711.13
5.2.130.0070.03711.10
5.2.120.0030.06010.89
5.2.110.0070.05710.93
5.2.100.0100.04311.02
5.2.90.0000.04011.07
5.2.80.0070.03711.11
5.2.70.0070.05711.13
5.2.60.0100.04310.91
5.2.50.0070.06311.07
5.2.40.0030.06010.95
5.2.30.0000.06310.76
5.2.20.0000.05011.03
5.2.10.0130.02310.91
5.2.00.0070.06010.62
5.1.60.0100.0309.87
5.1.50.0100.05010.03
5.1.40.0000.04010.07
5.1.30.0030.03310.20
5.1.20.0030.02710.38
5.1.10.0030.0539.95
5.1.00.0100.04710.10
5.0.50.0030.0438.63
5.0.40.0000.0438.46
5.0.30.0030.0708.30
5.0.20.0030.0278.18
5.0.10.0070.0408.21
5.0.00.0000.0678.15
4.4.90.0000.0338.04
4.4.80.0030.0178.04
4.4.70.0030.0208.04
4.4.60.0030.0378.04
4.4.50.0070.0308.04
4.4.40.0000.0608.04
4.4.30.0030.0338.04
4.4.20.0070.0308.04
4.4.10.0000.0378.04
4.4.00.0100.0478.04
4.3.110.0070.0338.04
4.3.100.0100.0238.04
4.3.90.0070.0338.04
4.3.80.0030.0408.04
4.3.70.0030.0338.04
4.3.60.0000.0308.04
4.3.50.0000.0238.04
4.3.40.0030.0508.04
4.3.30.0000.0378.04
4.3.20.0030.0338.04
4.3.10.0000.0278.04
4.3.00.0000.0278.04

preferences:
40.46 ms | 401 KiB | 5 Q