3v4l.org

run code in 300+ PHP versions simultaneously
<?php class ArrayObjectChild extends ArrayObject { public function offsetExists($offset) { var_dump('Called: '.__METHOD__); return parent::offsetExists($offset); } public function offsetGet($offset) { var_dump('Called: '.__METHOD__); return parent::offsetGet($offset); } } class ArrayAcessImplementation implements ArrayAccess { private $_array = array(); public function __construct(array $array) { $this->_array = $array; } public function offsetExists($offset) { var_dump('Called: '.__METHOD__); return array_key_exists($offset, $this->_array); } public function offsetGet($offset) { var_dump('Called: '.__METHOD__); return $this->_array[$offset]; } public function offsetSet($offset, $value) {} public function offsetUnset($offset) {} } $array = array('foo' => ''); echo "ArrayObject: empty string is set, but empty:\n"; $object = new ArrayObject($array); var_dump(isset($object['foo']), empty($object['foo'])); echo "ArrayObject extended: empty string is set, but not empty\n"; $object = new ArrayObjectChild($array); var_dump(isset($object['foo']), empty($object['foo'])); echo "ArrayAccess implemented: empty string is set, but empty\n"; $object = new ArrayAcessImplementation($array); var_dump(isset($object['foo']), empty($object['foo']));

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)
8.3.40.0210.00018.98
8.3.30.0160.00619.25
8.3.20.0060.00320.34
8.3.10.0040.00421.92
8.3.00.0000.00922.39
8.2.170.0190.00322.96
8.2.160.0070.00720.53
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0080.00026.16
8.2.120.0050.00319.66
8.2.110.0030.00620.53
8.2.100.0090.00317.91
8.2.90.0040.00419.36
8.2.80.0000.00818.03
8.2.70.0000.00917.50
8.2.60.0110.00717.68
8.2.50.0040.00718.07
8.2.40.0000.00818.34
8.2.30.0040.00418.14
8.2.20.0080.00017.85
8.2.10.0060.00317.77
8.2.00.0080.00017.69
8.1.270.0090.00018.50
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0060.00323.96
8.1.230.0090.00322.81
8.1.220.0040.00417.77
8.1.210.0000.00818.77
8.1.200.0030.00717.47
8.1.190.0050.00317.40
8.1.180.0040.00418.78
8.1.170.0040.00418.64
8.1.160.0000.00722.02
8.1.150.0040.00418.54
8.1.140.0080.00017.52
8.1.130.0000.00717.86
8.1.120.0000.00717.37
8.1.110.0000.00717.55
8.1.100.0000.00717.54
8.1.90.0030.00717.49
8.1.80.0050.00217.46
8.1.70.0040.00417.52
8.1.60.0040.00417.66
8.1.50.0000.00817.45
8.1.40.0080.00017.44
8.1.30.0070.00017.60
8.1.20.0000.00817.68
8.1.10.0050.00317.64
8.1.00.0030.00517.53
8.0.300.0080.00018.77
8.0.290.0000.00717.18
8.0.280.0070.00018.51
8.0.270.0080.00017.33
8.0.260.0030.00316.86
8.0.250.0000.00716.95
8.0.240.0000.00817.00
8.0.230.0000.00716.84
8.0.220.0000.00816.86
8.0.210.0000.00716.94
8.0.200.0040.00416.91
8.0.190.0000.00716.87
8.0.180.0070.00016.80
8.0.170.0000.00716.79
8.0.160.0000.00716.85
8.0.150.0000.00716.90
8.0.140.0000.00816.94
8.0.130.0030.00313.32
8.0.120.0030.00516.90
8.0.110.0040.00416.92
8.0.100.0070.00016.91
8.0.90.0000.00716.97
8.0.80.0090.00916.84
8.0.70.0000.00716.96
8.0.60.0000.00716.93
8.0.50.0040.00416.79
8.0.30.0110.01117.18
8.0.20.0110.00817.40
8.0.10.0040.00416.95
8.0.00.0150.00516.79
7.4.330.0000.00415.02
7.4.320.0060.00016.43
7.4.300.0000.00616.60
7.4.290.0000.01016.59
7.4.280.0030.00316.53
7.4.270.0030.00316.62
7.4.260.0070.00016.50
7.4.250.0000.00816.46
7.4.240.0040.00416.58
7.4.230.0000.00716.57
7.4.220.0060.01216.49
7.4.210.0090.00716.49
7.4.200.0000.00716.66
7.4.190.0040.00416.59
7.4.160.0090.01216.36
7.4.150.0140.00317.40
7.4.140.0080.01117.86
7.4.130.0090.00916.52
7.4.120.0080.01116.54
7.4.110.0140.01016.55
7.4.100.0090.00816.55
7.4.90.0070.01016.51
7.4.80.0140.00619.39
7.4.70.0110.00816.53
7.4.60.0160.00316.47
7.4.50.0080.00016.41
7.4.40.0120.00322.77
7.4.30.0060.01316.53
7.4.00.0040.00714.89
7.3.330.0000.00513.38
7.3.320.0030.00313.36
7.3.310.0070.00016.44
7.3.300.0030.00316.36
7.3.290.0130.00316.39
7.3.280.0080.00916.35
7.3.270.0080.01117.40
7.3.260.0120.00616.46
7.3.250.0120.00816.57
7.3.240.0150.00316.60
7.3.230.0140.00316.45
7.3.210.0100.00716.41
7.3.200.0140.00419.39
7.3.190.0080.00916.52
7.3.180.0060.01116.75
7.3.170.0090.00916.54
7.3.160.0080.00816.48
7.3.120.0100.00315.01
7.2.330.0060.01316.91
7.2.320.0130.00616.84
7.2.310.0110.01216.50
7.2.300.0060.01716.61
7.2.290.0130.00316.93
7.2.00.0030.01219.54
7.1.100.0630.00418.09
7.1.70.0000.00917.18
7.1.60.0040.00717.29
7.1.50.0240.00017.02
7.1.00.0030.06322.40
7.0.200.0040.00716.87
7.0.140.0100.06722.00
7.0.100.0030.04020.00
7.0.90.0030.03719.96
7.0.80.0070.03719.98
7.0.70.0100.04020.15
7.0.60.0030.03719.97
7.0.50.0100.03720.31
7.0.40.0030.04320.03
7.0.30.0130.03720.14
7.0.20.0130.03320.15
7.0.10.0070.04020.13
7.0.00.0130.02720.09
5.6.280.0030.07320.93
5.6.250.0100.04020.63
5.6.240.0000.04020.69
5.6.230.0000.04720.52
5.6.220.0000.05320.66
5.6.210.0070.04020.70
5.6.200.0000.04020.98
5.6.190.0130.05721.10
5.6.180.0030.03321.10
5.6.170.0000.03721.08
5.6.160.0030.04321.09
5.6.150.0100.03721.04
5.6.140.0030.04321.15
5.6.130.0030.04321.15
5.6.120.0100.03021.05
5.6.110.0000.04021.14
5.6.100.0000.03721.06
5.6.90.0070.03721.10
5.6.80.0000.03720.34
5.6.70.0000.04020.35
5.6.60.0070.04320.41
5.6.50.0070.03320.34
5.6.40.0100.05020.33
5.6.30.0100.06320.31
5.6.20.0030.07720.40
5.6.10.0070.04320.45
5.6.00.0030.04020.32
5.5.380.0000.04320.51
5.5.370.0000.04320.41
5.5.360.0100.03720.41
5.5.350.0030.03720.39
5.5.340.0000.03720.67
5.5.330.0030.03720.94
5.5.320.0000.04720.80
5.5.310.0070.04020.91
5.5.300.0100.03020.86
5.5.290.0000.04720.94
5.5.280.0030.04020.88
5.5.270.0030.03720.65
5.5.260.0030.03720.79
5.5.250.0170.02320.75
5.5.240.0030.03320.30
5.5.230.0070.07020.29
5.5.220.0070.07720.29
5.5.210.0070.08020.30
5.5.200.0030.05320.11
5.5.190.0030.03720.25
5.5.180.0000.06020.26
5.5.160.0170.03020.18
5.5.150.0070.08720.10
5.5.140.0070.03720.10
5.5.130.0030.07020.29
5.5.120.0070.03720.24
5.5.110.0130.06720.27
5.5.100.0100.03320.19
5.5.90.0030.07720.09
5.5.80.0030.03720.10
5.5.70.0070.07720.11
5.5.60.0100.04320.06
5.5.50.0030.04720.12
5.5.40.0030.05320.13
5.5.30.0030.04319.94
5.5.20.0070.05320.01
5.5.10.0030.04020.02
5.5.00.0070.04020.09
5.4.450.0070.03019.49
5.4.440.0000.03719.38
5.4.430.0030.03319.45
5.4.420.0070.03319.37
5.4.410.0070.03019.04
5.4.400.0030.04319.22
5.4.390.0000.04019.21
5.4.380.0170.04719.21
5.4.370.0030.04019.04
5.4.360.0000.04319.04
5.4.350.0070.03719.04
5.4.340.0070.03319.09
5.4.320.0070.06719.03
5.4.310.0030.03719.23
5.4.300.0070.05019.16
5.4.290.0100.03318.94
5.4.280.0030.03719.14
5.4.270.0030.03718.90
5.4.260.0030.03719.23
5.4.250.0030.06319.22
5.4.240.0030.03319.17
5.4.230.0030.06719.12
5.4.220.0070.03319.17
5.4.210.0100.06319.23
5.4.200.0030.03319.05
5.4.190.0130.06718.89
5.4.180.0070.04319.11
5.4.170.0030.03719.08
5.4.160.0030.03319.03
5.4.150.0030.07719.18
5.4.140.0170.06316.33
5.4.130.0070.03016.50
5.4.120.0070.03016.41
5.4.110.0070.07016.48
5.4.100.0100.06716.48
5.4.90.0070.07016.39
5.4.80.0070.04316.48
5.4.70.0000.06016.43
5.4.60.0070.07716.34
5.4.50.0070.07016.36
5.4.40.0100.04316.46
5.4.30.0130.07316.39
5.4.20.0030.08016.30
5.4.10.0070.03716.48
5.4.00.0030.03315.91
5.3.290.0070.03014.62
5.3.280.0100.04014.72
5.3.270.0130.07714.59
5.3.260.0030.07314.61
5.3.250.0130.06714.61
5.3.240.0000.07014.69
5.3.230.0070.03014.63
5.3.220.0030.08014.66
5.3.210.0070.04014.70
5.3.200.0000.06314.61
5.3.190.0070.04014.58
5.3.180.0030.03714.54
5.3.170.0070.07014.64
5.3.160.0030.04014.54
5.3.150.0100.06714.59
5.3.140.0070.07314.50
5.3.130.0130.07314.54
5.3.120.0000.06714.50
5.3.110.0100.07714.52
5.3.100.0030.03714.16
5.3.90.0070.06014.09
5.3.80.0030.04013.99
5.3.70.0070.07014.03
5.3.60.0030.06714.09
5.3.50.0100.05013.99
5.3.40.0100.07013.90
5.3.30.0030.03313.96
5.3.20.0030.08013.82
5.3.10.0070.03713.70
5.3.00.0030.06013.56
5.2.170.0000.03312.34
5.2.160.0030.03712.34
5.2.150.0070.02712.34
5.2.140.0000.03312.34
5.2.130.0070.05012.34
5.2.120.0000.03712.34
5.2.110.0000.02712.34
5.2.100.0100.03012.34
5.2.90.0000.03312.34
5.2.80.0000.03012.34
5.2.70.0000.03012.34
5.2.60.0000.06012.34
5.2.50.0030.06312.34
5.2.40.0070.06012.34
5.2.30.0100.04012.34
5.2.20.0130.05312.34
5.2.10.0030.06012.34
5.2.00.0000.04312.34
5.1.60.0070.03012.34
5.1.50.0000.03312.34
5.1.40.0000.02312.34
5.1.30.0130.01312.34
5.1.20.0030.03012.34
5.1.10.0000.04712.34
5.1.00.0070.05012.34
5.0.50.0070.04312.34
5.0.40.0000.03012.34
5.0.30.0030.02712.34
5.0.20.0000.04312.34
5.0.10.0100.05312.34
5.0.00.0030.06012.34
4.4.90.0000.02712.34
4.4.80.0000.02712.34
4.4.70.0030.02012.34
4.4.60.0030.01312.34
4.4.50.0000.01712.34
4.4.40.0030.04012.34
4.4.30.0000.02312.34
4.4.20.0000.03012.34
4.4.10.0070.02712.34
4.4.00.0030.04312.34
4.3.110.0000.01312.34
4.3.100.0070.03312.34
4.3.90.0030.01712.34
4.3.80.0000.02712.34
4.3.70.0000.01712.34
4.3.60.0000.03312.34
4.3.50.0070.02712.34
4.3.40.0000.05012.34
4.3.30.0000.02012.34
4.3.20.0000.03712.34
4.3.10.0000.02312.34
4.3.00.0070.02312.34

preferences:
42.83 ms | 400 KiB | 5 Q