3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); class RefArray implements ArrayAccess { public $array; public function &offsetGet($key) { return $this->array[$key]; } public function offsetSet($key, $value) { $this->array[$key] = $value; } public function offsetExists($key) { return isset($this->array[$key]); } public function offsetUnset($key) { unset($this->array[$key]); } } $arr = new RefArray; $arr[0] = 'abc'; $arr[1] =& $arr[0];

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)
8.4.120.0110.00920.40
8.4.110.0110.01118.96
8.4.100.0160.00518.19
8.4.90.0110.01017.84
8.4.80.0090.01319.70
8.4.70.0070.00419.83
8.4.60.0100.01019.70
8.4.50.0070.00718.06
8.4.40.0060.00318.04
8.4.30.0060.01318.02
8.4.20.0130.00717.97
8.4.10.0040.00417.89
8.3.250.0110.00719.04
8.3.240.0050.00316.77
8.3.230.0110.00916.64
8.3.220.0130.00616.67
8.3.210.0060.00816.86
8.3.200.0100.00816.52
8.3.190.0110.00817.09
8.3.180.0090.00916.57
8.3.170.0150.00316.47
8.3.160.0090.00916.80
8.3.150.0080.00017.26
8.3.140.0080.00016.81
8.3.130.0080.00018.69
8.3.120.0060.00320.97
8.3.110.0030.00620.94
8.3.100.0090.00924.06
8.3.90.0040.01126.77
8.3.80.0040.00817.97
8.3.70.0070.01118.43
8.3.60.0070.00718.56
8.3.50.0100.00922.12
8.3.40.0060.00919.15
8.3.30.0040.01119.05
8.3.20.0110.00720.19
8.3.10.0080.00021.73
8.3.00.0180.00019.07
8.2.290.0120.00718.89
8.2.280.0120.00620.33
8.2.270.0150.00418.91
8.2.260.0080.00018.96
8.2.250.0040.00416.83
8.2.240.0080.00017.12
8.2.230.0080.00022.58
8.2.220.0080.00037.54
8.2.210.0080.00826.77
8.2.200.0040.00416.50
8.2.190.0090.00918.29
8.2.180.0150.00018.45
8.2.170.0070.00722.96
8.2.160.0170.00320.35
8.2.150.0060.00324.18
8.2.140.0030.00524.66
8.2.130.0080.00026.16
8.2.120.0070.00322.28
8.2.110.0090.00021.03
8.2.100.0110.00017.84
8.2.90.0070.00019.28
8.2.80.0060.00317.97
8.2.70.0000.00917.93
8.2.60.0000.00818.22
8.2.50.0000.00818.10
8.2.40.0040.00419.33
8.2.30.0000.00720.55
8.2.20.0040.00417.83
8.2.10.0000.00718.13
8.2.00.0080.00017.72
8.1.330.0120.00616.44
8.1.320.0090.01216.09
8.1.310.0080.00018.35
8.1.300.0060.00316.32
8.1.290.0070.00330.84
8.1.280.0060.00925.92
8.1.270.0100.01018.79
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.01023.77
8.1.230.0080.00320.97
8.1.220.0050.00317.78
8.1.210.0040.00418.92
8.1.200.0060.00317.35
8.1.190.0040.00417.23
8.1.180.0040.00418.10
8.1.170.0000.00818.54
8.1.160.0040.00418.89
8.1.150.0070.00018.82
8.1.140.0050.00217.32
8.1.130.0070.00017.89
8.1.120.0070.00017.56
8.1.110.0030.00617.48
8.1.100.0050.00317.42
8.1.90.0040.00317.46
8.1.80.0000.00817.45
8.1.70.0000.00717.36
8.1.60.0030.00617.59
8.1.50.0030.00517.45
8.1.40.0060.00317.44
8.1.30.0000.00917.56
8.1.20.0030.00517.69
8.1.10.0040.00417.58
8.1.00.0040.00417.52
8.0.300.0050.00319.78
8.0.290.0040.00416.75
8.0.280.0000.00718.39
8.0.270.0070.00017.13
8.0.260.0000.00617.13
8.0.250.0030.00317.04
8.0.240.0070.00016.89
8.0.230.0030.00317.02
8.0.220.0030.00616.79
8.0.210.0030.00316.95
8.0.200.0070.00016.91
8.0.190.0030.00617.07
8.0.180.0040.00416.87
8.0.170.0090.00016.95
8.0.160.0030.00316.93
8.0.150.0040.00716.93
8.0.140.0020.00516.96
8.0.130.0000.00613.31
8.0.120.0000.00816.94
8.0.110.0040.00416.86
8.0.100.0080.00017.00
8.0.90.0060.00316.83
8.0.80.0060.01016.91
8.0.70.0070.00016.74
8.0.60.0070.00016.82
8.0.50.0070.00016.88
8.0.30.0120.01117.02
8.0.20.0150.00817.40
8.0.10.0040.00417.09
8.0.00.0090.00716.75
7.4.330.0000.00615.13
7.4.320.0030.00316.48
7.4.300.0030.00316.68
7.4.290.0070.00016.51
7.4.280.0070.00016.35
7.4.270.0070.00016.59
7.4.260.0000.00816.49
7.4.250.0000.00816.57
7.4.240.0010.00616.62
7.4.230.0040.00416.66
7.4.220.0070.01016.66
7.4.210.0120.00616.71
7.4.200.0040.00416.50
7.4.160.0070.01016.23
7.4.150.0070.01017.40
7.4.140.0130.00617.86
7.4.130.0100.00816.40
7.4.120.0120.00816.48
7.4.110.0110.01416.61
7.4.100.0130.00316.44
7.4.90.0100.01016.47
7.4.80.0070.01419.39
7.4.70.0120.00416.58
7.4.60.0070.01016.48
7.4.50.0030.00316.43
7.4.40.0150.00616.65
7.4.30.0090.00816.37
7.4.00.0080.00914.94
7.3.330.0000.00613.29
7.3.320.0030.00313.30
7.3.310.0040.00416.25
7.3.300.0000.00716.43
7.3.290.0080.00716.42
7.3.280.0050.01216.46
7.3.270.0090.00917.40
7.3.260.0080.00816.54
7.3.250.0050.01216.39
7.3.240.0130.00316.59
7.3.230.0090.00616.43
7.3.210.0130.01016.54
7.3.200.0110.01119.39
7.3.190.0130.00316.54
7.3.180.0030.01316.36
7.3.170.0120.00316.41
7.3.160.0050.01116.41
7.3.120.0080.00814.89
7.3.110.0100.00514.80
7.3.100.0050.01114.94
7.3.90.0090.00314.77
7.3.80.0120.00314.79
7.3.70.0110.00314.96
7.3.60.0030.01014.66
7.3.50.0030.01314.96
7.3.40.0050.00814.94
7.3.30.0030.01214.72
7.3.20.0050.00716.61
7.3.10.0030.00816.81
7.3.00.0040.01116.66
7.2.330.0040.01416.44
7.2.320.0100.01316.58
7.2.310.0130.00316.41
7.2.300.0060.01816.46
7.2.290.0080.00816.72
7.2.250.0030.01015.20
7.2.240.0050.01014.95
7.2.230.0070.00515.12
7.2.220.0010.01015.19
7.2.210.0090.00515.08
7.2.200.0050.00815.12
7.2.190.0030.01015.03
7.2.180.0050.00914.80
7.2.170.0040.01215.06
7.2.160.0030.01315.03
7.2.150.0070.01117.13
7.2.140.0040.00816.83
7.2.130.0050.01316.94
7.2.120.0000.01416.98
7.2.110.0070.00716.94
7.2.100.0070.01016.84
7.2.90.0100.00616.92
7.2.80.0070.00717.01
7.2.70.0040.01117.00
7.2.60.0070.01016.80
7.2.50.0030.01317.09
7.2.40.0060.00616.89
7.2.30.0030.01316.99
7.2.20.0070.01116.95
7.2.10.0080.00416.60
7.2.00.0070.00917.85
7.1.330.0040.01315.88
7.1.320.0000.01115.64
7.1.310.0060.00515.67
7.1.300.0080.00415.72
7.1.290.0040.01015.88
7.1.280.0070.00715.80
7.1.270.0040.01015.83
7.1.260.0070.00715.92
7.1.250.0120.00315.61
7.1.200.0090.00615.82
7.1.100.0230.00417.87
7.1.70.0100.00317.16
7.1.60.0120.01219.57
7.1.50.0090.00916.85
7.1.00.0070.07322.37
7.0.200.0100.00716.31
7.0.140.0030.04322.15
7.0.70.0100.08721.73
7.0.60.0070.07321.75
7.0.50.0070.05322.14
7.0.40.0070.05320.18
7.0.30.0000.06020.14
7.0.20.0070.05320.08
7.0.10.0130.04720.09
7.0.00.0030.04320.18
5.6.280.0030.07320.78
5.6.220.0070.08020.56
5.6.210.0030.07020.66
5.6.200.0000.06720.95
5.6.190.0000.08721.04
5.6.180.0000.06721.05
5.6.170.0070.07721.05
5.6.160.0200.07021.03
5.6.150.0030.08320.94
5.6.140.0000.08320.94
5.6.130.0130.04721.14
5.6.120.0170.07721.12
5.6.110.0230.06721.04
5.6.100.0070.04721.10
5.6.90.0030.07321.01
5.6.80.0070.03720.50
5.6.70.0030.05720.32
5.6.60.0100.03320.42
5.6.50.0000.04320.49
5.6.40.0000.04320.41
5.6.30.0070.06720.53
5.6.20.0070.05720.37
5.6.10.0000.05020.42
5.6.00.0130.03020.36
5.5.360.0000.08720.39
5.5.350.0000.06720.46
5.5.340.0030.04320.78
5.5.330.0030.06720.61
5.5.320.0070.05020.80
5.5.310.0070.05720.91
5.5.300.0000.07720.93
5.5.290.0030.08720.80
5.5.280.0100.06720.83
5.5.270.0000.08320.80
5.5.260.0030.06020.79
5.5.250.0100.07720.74
5.5.240.0000.08320.25
5.5.230.0030.04320.16
5.5.220.0070.03720.24
5.5.210.0030.04020.30
5.5.200.0070.03320.12
5.5.190.0070.07320.24
5.5.180.0070.07320.18
5.5.160.0030.04020.24
5.5.150.0100.06320.14
5.5.140.0030.08020.15
5.5.130.0070.07720.09
5.5.120.0100.07320.27
5.5.110.0030.04720.11
5.5.100.0000.04720.16
5.5.90.0000.08319.98
5.5.80.0030.07720.09
5.5.70.0100.08320.14
5.5.60.0130.07019.91
5.5.50.0030.09020.15
5.5.40.0000.08320.06
5.5.30.0000.06020.00
5.5.20.0030.07320.10
5.5.10.0000.04319.98
5.5.00.0100.06720.11
5.4.450.0070.07019.45
5.4.440.0070.07019.54
5.4.430.0000.08719.45
5.4.420.0070.03719.37
5.4.410.0070.08019.38
5.4.400.0070.05019.05
5.4.390.0000.06019.09
5.4.380.0070.06719.05
5.4.370.0000.04019.00
5.4.360.0000.04019.23
5.4.350.0070.04019.05
5.4.340.0030.07318.95
5.4.320.0070.08019.10
5.4.310.0030.05319.13
5.4.300.0030.04319.04
5.4.290.0030.07719.13
5.4.280.0030.08019.13
5.4.270.0100.05319.23
5.4.260.0030.06019.12
5.4.250.0030.08019.13
5.4.240.0200.06319.08
5.4.230.0030.07319.02
5.4.220.0100.07018.87
5.4.210.0130.06718.86
5.4.200.0070.07019.24
5.4.190.0030.07019.17
5.4.180.0030.04319.04
5.4.170.0000.04019.03
5.4.160.0070.05319.11
5.4.150.0070.06019.13
5.4.140.0000.08016.58
5.4.130.0030.04016.43
5.4.120.0030.07316.45
5.4.110.0030.04716.42
5.4.100.0000.03716.32
5.4.90.0000.04316.43
5.4.80.0000.03716.31
5.4.70.0000.07016.41
5.4.60.0000.07316.34
5.4.50.0030.07316.32
5.4.40.0030.03316.54
5.4.30.0000.04316.47
5.4.20.0000.07316.43
5.4.10.0000.04316.36
5.4.00.0030.03315.79
5.3.290.0030.04314.68
5.3.280.0070.07314.61
5.3.270.0000.04314.72
5.3.260.0000.08014.68
5.3.250.0030.07314.61
5.3.240.0030.06714.75
5.3.230.0030.07314.62
5.3.220.0030.08014.59
5.3.210.0030.07714.55
5.3.200.0000.04014.61
5.3.190.0030.07714.69
5.3.180.0000.04014.67
5.3.170.0000.06714.68
5.3.160.0000.07014.68
5.3.150.0000.06714.63
5.3.140.0000.05714.67
5.3.130.0100.03714.61
5.3.120.0000.08014.53
5.3.110.0030.07014.61
5.3.100.0030.08013.98
5.3.90.0070.03713.95
5.3.80.0030.03314.08
5.3.70.0030.07714.08
5.3.60.0030.07314.03
5.3.50.0030.06313.87
5.3.40.0030.06714.01
5.3.30.0030.06713.89
5.3.20.0000.06013.75
5.3.10.0000.07013.64
5.3.00.0000.07313.67
5.2.170.0030.04312.25
5.2.160.0030.06312.25
5.2.150.0000.05712.25
5.2.140.0070.06012.25
5.2.130.0030.05312.25
5.2.120.0000.03712.25
5.2.110.0000.06012.25
5.2.100.0030.06012.25
5.2.90.0000.03012.25
5.2.80.0030.02712.25
5.2.70.0030.05312.25
5.2.60.0000.05712.25
5.2.50.0000.05312.25
5.2.40.0000.05012.25
5.2.30.0000.04712.25
5.2.20.0000.06012.25
5.2.10.0000.05712.25
5.2.00.0070.05012.25
5.1.60.0030.04312.25
5.1.50.0070.04312.25
5.1.40.0030.02712.25
5.1.30.0030.02312.25
5.1.20.0000.05012.25
5.1.10.0030.02712.25
5.1.00.0000.02712.25
5.0.50.0070.04012.25
5.0.40.0000.04712.25
5.0.30.0070.06312.25
5.0.20.0000.05012.25
5.0.10.0070.04012.25
5.0.00.0030.06712.25
4.4.90.0000.02012.25
4.4.80.0000.02312.25
4.4.70.0000.02312.25
4.4.60.0030.03312.25
4.4.50.0030.03312.25
4.4.40.0000.05012.25
4.4.30.0000.03012.25
4.4.20.0000.02012.25
4.4.10.0000.03312.25
4.4.00.0070.03712.25
4.3.110.0000.03712.25
4.3.100.0030.03312.25
4.3.90.0000.03712.25
4.3.80.0030.05012.25
4.3.70.0030.03312.25
4.3.60.0030.02312.25
4.3.50.0030.03312.25
4.3.40.0000.05712.25
4.3.30.0030.03712.25
4.3.20.0000.03712.25
4.3.10.0030.03312.25
4.3.00.0030.03312.25

preferences:
109.27 ms | 403 KiB | 5 Q