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: $obj = (object)array('123' => '456'); // '123' => 123 and identifers must be strings print_r($obj); echo $obj->{'123'},"\n"; // so "Undefined property: stdClass::$123" if (!property_exists($obj,'123')) echo 'property 123 does not exist',"\n"; $obj = new stdClass; $obj->name = "blabe"; echo "The rain in {$obj->name} ...";

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)
8.3.70.0120.00316.88
8.3.60.0100.01018.38
8.3.50.0120.00922.06
8.3.40.0110.00718.87
8.3.30.0000.01419.17
8.3.20.0060.00319.93
8.3.10.0030.00520.71
8.3.00.0060.00319.50
8.2.180.0060.01316.74
8.2.170.0140.00722.96
8.2.160.0000.01420.39
8.2.150.0060.00324.18
8.2.140.0040.00424.66
8.2.130.0050.00226.16
8.2.120.0040.00422.07
8.2.110.0060.00319.21
8.2.100.0070.00418.03
8.2.90.0000.00819.26
8.2.80.0050.00317.97
8.2.70.0030.00717.50
8.2.60.0000.00817.93
8.2.50.0090.00018.34
8.2.40.0060.00320.30
8.2.30.0050.00321.08
8.2.20.0030.00517.71
8.2.10.0000.00718.13
8.2.00.0000.00817.89
8.1.280.0070.01125.92
8.1.270.0040.00423.83
8.1.260.0050.00326.35
8.1.250.0050.00328.09
8.1.240.0100.00020.88
8.1.230.0040.00717.77
8.1.220.0050.00317.74
8.1.210.0000.00918.77
8.1.200.0030.00617.25
8.1.190.0030.00517.35
8.1.180.0040.00418.10
8.1.170.0060.00318.63
8.1.160.0040.00418.91
8.1.150.0000.00920.66
8.1.140.0040.00417.48
8.1.130.0000.00717.89
8.1.120.0040.00417.53
8.1.110.0050.00317.41
8.1.100.0040.00417.37
8.1.90.0040.00317.40
8.1.80.0040.00417.54
8.1.70.0040.00417.34
8.1.60.0030.00617.65
8.1.50.0000.00817.45
8.1.40.0040.00417.56
8.1.30.0040.00417.50
8.1.20.0050.00217.56
8.1.10.0000.00817.58
8.1.00.0050.00317.59
8.0.300.0000.00818.77
8.0.290.0000.00816.74
8.0.280.0030.00318.51
8.0.270.0030.00317.24
8.0.260.0000.00617.20
8.0.250.0030.00316.98
8.0.240.0000.00716.93
8.0.230.0040.00416.90
8.0.220.0070.00016.89
8.0.210.0000.00716.88
8.0.200.0080.00017.02
8.0.190.0030.00316.94
8.0.180.0050.00217.02
8.0.170.0000.00816.86
8.0.160.0070.00016.91
8.0.150.0040.00416.98
8.0.140.0040.00416.96
8.0.130.0030.00313.40
8.0.120.0080.00016.98
8.0.110.0080.00016.80
8.0.100.0080.00017.04
8.0.90.0040.00417.00
8.0.80.0030.01216.89
8.0.70.0050.00516.96
8.0.60.0000.00716.93
8.0.50.0020.00516.79
8.0.30.0160.00517.16
8.0.20.0110.01017.40
8.0.10.0000.00716.88
8.0.00.0100.01216.81
7.4.330.0000.00515.09
7.4.320.0030.00316.43
7.4.300.0030.00316.52
7.4.290.0030.00316.67
7.4.280.0080.00016.52
7.4.270.0040.00416.57
7.4.260.0000.00716.51
7.4.250.0040.00416.36
7.4.240.0020.00616.54
7.4.230.0040.00416.41
7.4.220.0120.00616.42
7.4.210.0000.01416.43
7.4.200.0030.00516.35
7.4.160.0120.00916.54
7.4.150.0180.01417.40
7.4.140.0070.01417.86
7.4.130.0070.01016.59
7.4.120.0100.00816.51
7.4.110.0080.00916.39
7.4.100.0060.01216.61
7.4.90.0100.01016.53
7.4.80.0130.01019.39
7.4.70.0120.00916.57
7.4.60.0070.01116.48
7.4.50.0030.00616.50
7.4.40.0030.01416.59
7.4.30.0090.00616.56
7.4.00.0100.00714.77
7.3.330.0030.00313.19
7.3.320.0030.00313.15
7.3.310.0080.00016.17
7.3.300.0070.00016.39
7.3.290.0120.01216.37
7.3.280.0090.01116.30
7.3.270.0100.00717.40
7.3.260.0070.01016.50
7.3.250.0110.00616.42
7.3.240.0000.02016.50
7.3.230.0130.00716.60
7.3.210.0060.01216.52
7.3.200.0060.01619.39
7.3.190.0120.00916.32
7.3.180.0100.00716.34
7.3.170.0060.01116.27
7.3.160.0100.00616.31
7.3.120.0080.00817.15
7.3.110.0110.00317.15
7.3.100.0070.00717.15
7.3.90.0120.00317.15
7.3.80.0000.01117.15
7.3.70.0080.00817.15
7.3.60.0150.00317.15
7.3.50.0060.00317.15
7.3.40.0090.00617.15
7.3.30.0030.00917.15
7.3.20.0030.01017.15
7.3.10.0030.01417.15
7.3.00.0060.01017.15
7.2.330.0130.01016.67
7.2.320.0070.01016.79
7.2.310.0150.00316.78
7.2.300.0060.01316.80
7.2.290.0090.00816.57
7.2.240.0000.01217.15
7.2.230.0140.00417.15
7.2.220.0120.00617.15
7.2.210.0070.00717.15
7.2.200.0030.01017.15
7.2.190.0120.00617.15
7.2.180.0040.01217.15
7.2.170.0030.01017.15
7.2.160.0070.01017.15
7.2.150.0000.01517.15
7.2.140.0070.00717.15
7.2.130.0060.00917.15
7.2.120.0030.01317.15
7.2.110.0000.01217.15
7.2.100.0000.01717.15
7.2.90.0060.01017.15
7.2.80.0130.00017.15
7.2.70.0110.00417.18
7.2.60.0050.01116.97
7.2.50.0100.00317.15
7.2.40.0120.00317.15
7.2.30.0030.01517.15
7.2.20.0080.00417.15
7.2.10.0060.01217.15
7.2.00.0050.01018.34
7.1.330.0100.00317.15
7.1.320.0110.00317.15
7.1.310.0060.00617.15
7.1.300.0030.01017.15
7.1.290.0000.01017.15
7.1.280.0030.00917.15
7.1.270.0070.01017.15
7.1.260.0090.00617.15
7.1.250.0040.01117.15
7.1.200.0070.00715.89
7.1.100.0040.00718.09
7.1.70.0030.00617.30
7.1.60.0090.01619.32
7.1.50.0100.01316.82
7.1.00.0100.06722.36
7.0.200.0060.00316.50
7.0.140.0030.07322.05
7.0.60.0070.06719.96
7.0.50.0130.06317.89
7.0.40.0000.08320.09
7.0.30.0570.07020.23
7.0.20.0200.05720.21
7.0.10.0070.09020.35
7.0.00.0170.07320.24
5.6.280.0030.07021.05
5.6.210.0100.03320.51
5.6.200.0130.07318.14
5.6.190.0030.08720.61
5.6.180.0000.04720.57
5.6.170.0370.05720.54
5.6.160.0100.08320.49
5.6.150.0100.08318.14
5.6.140.0030.06718.18
5.6.130.0030.07718.27
5.6.120.0070.05320.82
5.6.110.0070.06021.13
5.6.100.0130.03720.98
5.6.90.0030.07320.97
5.6.80.0100.07720.44
5.5.350.0230.07320.33
5.5.340.0070.07317.98
5.5.330.0030.04720.43
5.5.320.0370.06020.34
5.5.310.0200.04020.24
5.5.300.0130.04018.00
5.5.290.0100.07717.97
5.5.280.0070.08320.78
5.5.270.0030.06020.87
5.5.260.0070.07020.87
5.5.250.0100.07020.55
5.5.240.0170.08020.08
5.4.450.0770.04019.46
5.4.440.0100.05019.53
5.4.430.0300.05319.48
5.4.420.0670.00019.46
5.4.410.0670.00019.25
5.4.400.0670.00019.13
5.4.390.0830.00019.02
5.4.380.0630.00019.16
5.4.370.0670.00019.07
5.4.360.0600.00019.02
5.4.350.0670.00019.02
5.4.340.0630.00019.13
5.4.320.0090.03612.49
5.4.310.0060.03912.49
5.4.300.0080.03412.49
5.4.290.0060.03812.49
5.4.280.0050.03612.39
5.4.270.0060.04112.38
5.4.260.0070.03712.38
5.4.250.0060.04712.38
5.4.240.0070.03512.38
5.4.230.0070.03712.38
5.4.220.0070.03612.38
5.4.210.0040.03812.38
5.4.200.0050.03912.38
5.4.190.0060.03712.38
5.4.180.0040.03912.38
5.4.170.0050.03712.38
5.4.160.0040.03812.38
5.4.150.0080.04112.38
5.4.140.0070.03812.06
5.4.130.0050.03712.05
5.4.120.0030.03812.01
5.4.110.0060.03812.00
5.4.100.0070.03412.00
5.4.90.0060.03712.00
5.4.80.0060.03712.00
5.4.70.0050.03712.00
5.4.60.0050.03612.00
5.4.50.0020.04012.00
5.4.40.0080.03311.99
5.4.30.0030.03911.99
5.4.20.0070.03411.98
5.4.10.0050.04311.99
5.4.00.0080.04311.48
5.3.290.0060.04012.80
5.3.280.0070.03712.71
5.3.270.0040.04112.72
5.3.260.0060.03912.72
5.3.250.0040.04112.72
5.3.240.0080.04012.71
5.3.230.0060.03712.71
5.3.220.0060.03712.68
5.3.210.0060.04912.68
5.3.200.0050.03912.68
5.3.190.0040.04012.68
5.3.180.0050.03712.67
5.3.170.0060.04512.67
5.3.160.0070.03612.67
5.3.150.0060.03712.67
5.3.140.0090.03412.66
5.3.130.0050.04112.65
5.3.120.0090.03612.66
5.3.110.0040.04112.66
5.3.100.0040.03912.12
5.3.90.0080.03512.10
5.3.80.0060.03812.09
5.3.70.0050.03812.09
5.3.60.0060.03712.07
5.3.50.0080.03412.03
5.3.40.0080.03512.03
5.3.30.0060.03511.98
5.3.20.0060.03511.76
5.3.10.0030.03711.73
5.3.00.0050.03811.72
5.2.170.0040.0329.22
5.2.160.0080.0299.22
5.2.150.0040.0319.23
5.2.140.0050.0309.21
5.2.130.0040.0299.18
5.2.120.0080.0339.18
5.2.110.0060.0329.18
5.2.100.0040.0299.18
5.2.90.0040.0309.18
5.2.80.0070.0289.18
5.2.70.0050.0309.18
5.2.60.0050.0309.13
5.2.50.0040.0319.10
5.2.40.0050.0289.07
5.2.30.0050.0299.05
5.2.20.0070.0289.04
5.2.10.0060.0328.95
5.2.00.0080.0398.81
5.1.60.0030.0338.07
5.1.50.0030.0268.07
5.1.40.0040.0258.06
5.1.30.0050.0258.41
5.1.20.0030.0288.43
5.1.10.0040.0308.15
5.1.00.0040.0278.15
5.0.50.0040.0206.64
5.0.40.0030.0206.50
5.0.30.0020.0366.31
5.0.20.0030.0216.28
5.0.10.0020.0266.26
5.0.00.0060.0286.25
4.4.90.0040.0144.78
4.4.80.0040.0194.75
4.4.70.0020.0164.76
4.4.60.0040.0144.76
4.4.50.0030.0154.77
4.4.40.0050.0304.71
4.4.30.0020.0184.76
4.4.20.0020.0184.85
4.4.10.0030.0174.85
4.4.00.0060.0224.76
4.3.110.0020.0174.67
4.3.100.0050.0134.66
4.3.90.0030.0194.63
4.3.80.0020.0254.59
4.3.70.0000.0174.63
4.3.60.0030.0144.63
4.3.50.0040.0144.63
4.3.40.0030.0244.54
4.3.30.0010.0173.30
4.3.20.0030.0153.28
4.3.10.0010.0173.24
4.3.00.0070.01313.60

preferences:
70.3 ms | 401 KiB | 5 Q