3v4l.org

run code in 300+ PHP versions simultaneously
<?php $obj = new stdClass; $obj->{'123'} = '456'; // defined property but unusable as obj->property; see below. print_r($obj); echo 'Via {\'123\'}: ' . $obj->{'123'},"\n"; if (isset($obj->{'123'})) { echo '123 is set',"\n";} if (property_exists($obj,'123')) echo 'property 123 exists',"\n"; // echo $obj->123; // Parse error: ...unexpected '123' (T_LNUMBER), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' $obj->{'a123'} = $obj->{'123'}; print_r($obj); echo 'Via Property a123: ' . $obj->a123,"\n"; // making a hash out of property a $obj->a["123"] = $obj->{'123'}; $obj->a["a123"] = $obj->{'a123'}; var_dump($obj); echo 'Via Property "a" and hashkey "123": ' . $obj->a["123"],"\n"; // contrast: $obj = (object)array('123' => '456'); // property 123 is invalid print_r($obj); echo $obj->{'123'},"\n"; // so "Undefined property: stdClass::$123"

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)
8.3.60.0040.01118.43
8.3.50.0140.00722.00
8.3.40.0180.00018.84
8.3.30.0100.00719.20
8.3.20.0070.00020.16
8.3.10.0030.00620.53
8.3.00.0080.00019.51
8.2.180.0120.00618.41
8.2.170.0100.00722.96
8.2.160.0110.00420.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0060.00326.16
8.2.120.0000.00822.23
8.2.110.0030.00721.03
8.2.100.0110.00018.00
8.2.90.0040.00419.40
8.2.80.0000.00817.97
8.2.70.0040.00417.75
8.2.60.0030.00517.93
8.2.50.0050.00318.07
8.2.40.0040.00419.95
8.2.30.0000.00818.14
8.2.20.0000.00717.89
8.2.10.0000.00718.12
8.2.00.0030.00617.76
8.1.280.0090.00925.92
8.1.270.0030.00623.92
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0090.00021.32
8.1.230.0060.00519.15
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0000.00817.36
8.1.190.0000.00817.22
8.1.180.0040.00418.10
8.1.170.0040.00418.53
8.1.160.0040.00421.97
8.1.150.0070.00018.83
8.1.140.0040.00417.31
8.1.130.0040.00417.84
8.1.120.0000.00717.48
8.1.110.0040.00417.34
8.1.100.0000.00817.26
8.1.90.0000.00817.38
8.1.80.0000.00817.47
8.1.70.0080.00017.37
8.1.60.0040.00417.54
8.1.50.0000.00817.43
8.1.40.0000.00917.37
8.1.30.0040.00417.50
8.1.20.0000.00917.57
8.1.10.0000.00817.49
8.1.00.0000.00717.57
8.0.300.0070.00318.77
8.0.290.0040.00416.75
8.0.280.0000.00718.47
8.0.270.0000.00717.33
8.0.260.0060.00316.89
8.0.250.0000.00817.02
8.0.240.0060.00017.10
8.0.230.0030.00317.02
8.0.220.0070.00016.98
8.0.210.0070.00016.96
8.0.200.0080.00017.02
8.0.190.0040.00416.93
8.0.180.0020.00517.03
8.0.170.0000.00916.98
8.0.160.0040.00416.99
8.0.150.0030.00316.92
8.0.140.0060.00316.93
8.0.130.0030.00313.42
8.0.120.0000.00816.90
8.0.110.0070.00016.76
8.0.100.0060.00316.82
8.0.90.0000.00716.73
8.0.80.0100.01016.90
8.0.70.0050.00316.94
8.0.60.0000.00716.88
8.0.50.0040.00416.71
8.0.30.0120.00817.08
8.0.20.0110.00717.40
8.0.10.0050.00216.85
8.0.00.0130.00716.81
7.4.330.0020.00215.11
7.4.320.0060.00016.39
7.4.300.0060.00016.38
7.4.290.0070.00016.35
7.4.280.0060.00316.45
7.4.270.0000.00616.52
7.4.260.0070.00016.52
7.4.250.0000.00716.33
7.4.240.0050.00216.55
7.4.230.0040.00416.39
7.4.220.0140.00316.46
7.4.210.0100.00316.33
7.4.200.0000.00716.36
7.4.160.0130.00316.29
7.4.150.0150.00317.40
7.4.140.0040.01417.86
7.4.130.0080.00816.41
7.4.120.0070.01316.53
7.4.110.0110.00616.44
7.4.100.0110.01116.41
7.4.90.0040.01416.41
7.4.80.0030.01619.39
7.4.70.0150.00316.50
7.4.60.0070.01016.66
7.4.50.0050.00016.57
7.4.40.0140.00516.43
7.4.30.0060.01116.57
7.4.00.0040.01214.84
7.3.330.0060.00013.18
7.3.320.0000.00513.14
7.3.310.0000.00716.45
7.3.300.0070.00016.24
7.3.290.0130.00716.38
7.3.280.0080.01016.38
7.3.270.0070.01217.40
7.3.260.0040.01416.29
7.3.250.0100.00716.30
7.3.240.0100.01316.33
7.3.230.0070.01116.45
7.3.210.0060.01116.55
7.3.200.0040.01419.39
7.3.190.0110.00616.37
7.3.180.0090.01216.45
7.3.170.0120.00616.39
7.3.160.0100.00616.41
7.3.10.0040.01116.52
7.3.00.0070.01116.62
7.2.330.0100.00716.56
7.2.320.0130.00316.81
7.2.310.0070.01016.51
7.2.300.0140.00316.40
7.2.290.0070.01416.69
7.2.130.0080.00816.95
7.2.120.0030.01016.84
7.2.110.0030.00917.07
7.2.100.0000.01016.89
7.2.90.0090.00616.76
7.2.80.0060.00616.76
7.2.70.0090.00317.21
7.2.60.0130.00516.54
7.2.50.0090.00616.90
7.2.40.0080.00317.09
7.2.30.0000.01416.95
7.2.20.0080.00617.02
7.2.10.0000.01017.00
7.2.00.0070.01017.06
7.1.250.0030.00515.81
7.1.200.0050.00815.75
7.1.100.0000.01417.70
7.1.70.0040.00417.18
7.1.60.0070.01719.32
7.1.50.0140.01116.82
7.1.00.0070.07322.40
7.0.200.0000.01016.82
7.0.140.0100.06722.10
7.0.60.0030.09020.05
7.0.50.0000.04317.72
7.0.40.0130.07720.24
7.0.30.0530.07020.16
7.0.20.0300.06020.07
7.0.10.0100.03720.19
7.0.00.0030.07320.25
5.6.280.0100.06721.02
5.6.210.0030.09020.51
5.6.200.0030.04018.19
5.6.190.0070.04020.60
5.6.180.0270.05320.39
5.6.170.0270.07020.57
5.6.160.0130.03720.55
5.6.150.0030.07318.28
5.6.140.0230.07018.15
5.6.130.0000.08718.14
5.6.120.0070.04321.12
5.6.110.0070.08721.00
5.6.100.0070.07321.11
5.6.90.0130.06021.11
5.6.80.0130.07720.41
5.5.350.0030.08720.49
5.5.340.0130.07317.97
5.5.330.0200.06720.27
5.5.320.0230.03720.41
5.5.310.0300.07720.32
5.5.300.0130.07018.04
5.5.290.0100.08017.97
5.5.280.0070.03720.85
5.5.270.0100.08020.95
5.5.260.0070.05720.93
5.5.250.0000.04720.58
5.5.240.0400.06320.15
5.4.450.0670.04319.55
5.4.440.0400.04719.48
5.4.430.0030.05019.57
5.4.420.0670.00019.39
5.4.410.0630.00019.35
5.4.400.0600.00019.07
5.4.390.0600.00019.21
5.4.380.0630.00019.25
5.4.370.0830.00019.23
5.4.360.0600.00019.26
5.4.350.0800.00019.21
5.4.340.0630.00019.09
5.4.320.0060.04312.48
5.4.310.0050.03812.48
5.4.300.0060.03712.48
5.4.290.0070.03712.48
5.4.280.0070.03312.38
5.4.270.0060.04612.38
5.4.260.0070.04212.38
5.4.250.0050.03812.38
5.4.240.0060.03712.38
5.4.230.0090.03512.37
5.4.220.0060.03712.37
5.4.210.0110.03012.37
5.4.200.0060.03712.37
5.4.190.0070.03812.36
5.4.180.0090.03612.37
5.4.170.0040.03812.38
5.4.160.0080.03512.38
5.4.150.0090.03712.37
5.4.140.0090.03812.05
5.4.130.0040.04012.04
5.4.120.0080.03412.00
5.4.110.0080.03411.99
5.4.100.0060.03412.00
5.4.90.0070.03512.00
5.4.80.0040.03812.00
5.4.70.0090.03711.99
5.4.60.0040.04011.99
5.4.50.0030.03811.99
5.4.40.0050.03511.98
5.4.30.0040.03811.98
5.4.20.0050.03711.98
5.4.10.0040.03611.98
5.4.00.0050.03711.47
5.3.290.0040.04512.80
5.3.280.0070.03612.70
5.3.270.0050.04012.73
5.3.260.0080.03712.72
5.3.250.0050.03912.72
5.3.240.0070.03712.72
5.3.230.0070.03712.71
5.3.220.0060.03712.68
5.3.210.0050.03912.68
5.3.200.0100.03212.68
5.3.190.0060.03712.68
5.3.180.0080.03512.67
5.3.170.0070.03612.67
5.3.160.0050.03812.67
5.3.150.0080.03512.67
5.3.140.0110.03112.66
5.3.130.0070.03712.66
5.3.120.0050.04412.66
5.3.110.0050.04012.66
5.3.100.0070.03712.12
5.3.90.0080.03812.09
5.3.80.0080.03512.08
5.3.70.0060.03612.07
5.3.60.0040.03912.06
5.3.50.0030.04012.01
5.3.40.0040.03812.02
5.3.30.0060.03911.98
5.3.20.0070.03511.75
5.3.10.0070.03411.71
5.3.00.0050.03811.71
5.2.170.0040.0329.21
5.2.160.0040.0309.21
5.2.150.0090.0269.21
5.2.140.0030.0329.20
5.2.130.0060.0329.17
5.2.120.0030.0309.16
5.2.110.0060.0289.17
5.2.100.0060.0279.17
5.2.90.0030.0319.17
5.2.80.0050.0309.17
5.2.70.0030.0329.16
5.2.60.0030.0319.12
5.2.50.0030.0319.09
5.2.40.0060.0279.05
5.2.30.0040.0339.04
5.2.20.0030.0319.02
5.2.10.0040.0308.93
5.2.00.0060.0288.80
5.1.60.0030.0258.07
5.1.50.0040.0258.06
5.1.40.0050.0238.04
5.1.30.0050.0258.39
5.1.20.0050.0268.41
5.1.10.0050.0258.14
5.1.00.0050.0258.14
5.0.50.0030.0216.64
5.0.40.0040.0196.49
5.0.30.0040.0316.31
5.0.20.0040.0196.28
5.0.10.0060.0186.25
5.0.00.0050.0296.25
4.4.90.0020.0164.78
4.4.80.0020.0154.75
4.4.70.0020.0164.76
4.4.60.0030.0154.76
4.4.50.0030.0154.77
4.4.40.0030.0254.71
4.4.30.0020.0164.75
4.4.20.0050.0134.84
4.4.10.0030.0154.85
4.4.00.0030.0244.76
4.3.110.0040.0144.67
4.3.100.0010.0164.66
4.3.90.0020.0144.63
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0030.0244.54
4.3.30.0030.0153.30
4.3.20.0030.0153.27
4.3.10.0010.0173.24
4.3.00.0030.02013.60

preferences:
44.88 ms | 401 KiB | 5 Q